Harbor Freight Tools (670cc) Product manual
Contents
1. 10 11 12 13 14 15 16 Attach the Choke Rod on the right side the Carburetor and secure it with its Clip 217 18 Attach the Breather Hose to the Carburetor and secure it with its Clamp 16 Attach the Throttle Rod Spring to the Throttle Rod Clip on the left side of the Carburetor 15 Insert the Throttle Rod on the left side of the Carburetor and secure it with its Clip 14 Attach the Fuel Hose to the port at the top of the Carburetor and attach it using its Clamp 12 Install Shroud using four Shroud Bolts and two Flange Shoulder Bolts 49 10 Include the Lifting Bracket in place on the right Flange Shoulder Bolt Install Air Cleaner Base using two Air Cleaner Base Bolts Connect Fuel Filter Clip under left side of Air Cleaner Base Install the Intake Cover and Intake Screen using the Intake Cover Bolts 46 8 Place the Paper Air Filter Foam Air Filter Air Cleaner Spacer and Air Cleaner Top Cover into place on the Air Cleaner Base 5 SETUP Replace the Air Cleaner Front Cover 4 Use the Air Cleaner Top Knob and Air Cleaner Front Knobs to secure the Covers in place 3 Once all connections are secure open fuel valve unclamp fuel hose Wipe up any spilled fuel and allow excess to evaporate before starting engine To prevent FIRE do not start the engine while the smell of fuel hangs in the air PREDATOR INES E N G ITEM 61614 For technical questio2. a Slide the Throttle or Speed Control Lever to SLOW the turtle b Turn the Key to OFF c Close the Fuel Valve if equipped NOTICE Drain fuel at end of season or warranty is void See Storage on page 23 for complete storage instructions ITEM 61614 For technical questions please call 1 888 866 5797 Page 19 gt 2 m gt 2 m Maintenance AWARNING TO PREVENT SERIOUS INJURY FROM ACCIDENTAL STARTING Turn the Power Switch of the equipment to its OFF position wait for the engine to cool and disconnect the spark plug caps before performing any inspection maintenance or cleaning procedures TO PREVENT SERIOUS INJURY FROM EQUIPMENT FAILURE Do not use damaged equipment If abnormal noise vibration or excess smoking occurs have the problem corrected before further use Follow all service instructions in this manual The engine may fail critically if not serviced properly Many maintenance procedures including any not detailed in this manual will need to be performed by a qualified technician for safety If you have any doubts about your ability to safely service the equipment or engine have a qualified technician service the equipment instead Cleaning Maintenance and Lubrication Schedule Note This maintenance schedule is intended solely as a general guide If performance decreases or if equipment operates unusually check systems immediately The maintenance needs of each piece o
3. 5 0 olo Q gt gt ato do ol lol lo o w 9 5 S zlole sioe 53 5 lo 5 o 5 3 amp lal ol 161 Is 5 515 52 Eagle g 8 5 28 D a 81219 lt lt 1 1 6 375 8 9 10_ 14 60 65 66 1 Page 28 Part 67 99 Clip Piston Pin Ring Set Oil Nut Valve Lock Bolt Valve Adjusting Rocker Valve Shaft Valve Rocker ifter Valve 2 Seat Valve Spring 8 67 68 69 80 86 87 89 90 96 97 98 99 7 8 Clamp Valve Lock Spring Valve Guide Seal Retainer Valve Spring Valve Exhaust a Washer Camshaft 97 Shield Shroud Shroud Nut 100 1 31 1 Air Cleaner Front Cover Air Cleaner Front Knob Shroud 2 Cylinder Bod Shroud Cylinder Bod 106 eio Shield Crankcase Side Bolt Flange Shoulder ifting Bracket Flange Shoulder Bolt Right Lower Cover Right Shield Gasket Oil Filter Cover 109 1 1 112 1 1 2 lt 51 0 2 0 00101 1 01 0120 0 01010 o o e 5 5 5 5 5 5 07 zo 2 2 5 20116612 aeg Sg 85 2 s 8g 5 2015 20 5 5 6 zo 5 55 5 ml 25 c E 19 3191 0155 6
4. Cylinder not lubricated Problem after long storage periods Loose or broken spark plugs Hissing noise will occur when trying to start Loose cylinder head or damaged head gasket Hissing noise will occur when trying to start Engine valves or tappets mis adjusted or stuck COMPRESSION RELATED 1 Pour tablespoon of oil into each spark plug hole Crank engine a few times and try to start again Tighten spark plugs If that does not work replace spark plugs If problem persists may have head gasket problem see 3 Tighten head If that does not remedy problem replace head gasket Have qualified technician adjust repair valves and tappets Y Follow all safety precautions whenever diagnosing or servicing the equipment or engine Page 24 For technical questions please call 1 888 866 5797 ITEM 61614 Possible Causes Probable Solutions Engine misfires Engine stops suddenly Engine stops when under heavy load Engine knocks Engine backfires Y Follow all safety precautions whenever diagnosing or servicing the equipment or engine ITEM 61614 Spark plug caps loose Incorrect spark plug gaps or damaged spark plugs Defective spark plug caps Old or low quality gasoline Incorrect compression Fuel tank empty or full of impure or low quality gasoline Low oil shutdown Defective fuel tank cap creating vacuum preventing proper f
5. physician s before use Electromagnetic fields in close proximity to a heart pacemaker could cause pacemaker interference or pacemaker failure Caution is necessary when near the engine s magneto or recoil starter Use only accessories that are recommended by Harbor Freight Tools for your model Accessories that may be suitable for one piece of equipment may become hazardous when used on another piece of equipment Do not operate in explosive atmospheres such as in the presence of flammable liquids gases or dust Gasoline powered engines may ignite the dust or fumes Stay alert watch what you are doing and use common sense when operating this engine Do not use while tired or under the influence of drugs alcohol or medication Dress properly Do not wear loose clothing or jewelry Keep hair clothing and gloves away from moving parts Loose clothes jewelry or long hair can be caught in moving parts Parts especially exhaust system components get very hot during use Stay clear of hot parts Do not cover the engine during operation Keep the engine and surrounding area clean at all times ITEM 61614 21 Use the equipment accessories etc in 22 23 accordance with these instructions and in the manner intended for the particular type of equipment taking into account the working conditions and the work to be performed Use of the equipment for operations different from those intended could
6. you are responsible for the performance Harbor Freight Tools Emissions Control Defects Warranty Coverage Engines are warranted for a period of two 2 years relative to emissions control parts defects subject to the provisions set forth below If any emissions related part on your engine is defective the part will be repaired or replaced by HFT road spark ignition engines certified for model year 2014 2015 must meet similar standards set forth by the EPA HFT must warrant the emissions control system on your engine for the periods of time described below provided there has been no abuse neglect or improper maintenance of your engine Your emissions control system may include parts such as the carburetor or fuel injection system and the ignition system Also included may be hoses belts connectors and other emissions related assemblies Where a warrantable condition exists HFT will repair your engine at no cost to you including diagnosis parts and labor Manufacturer s Warranty Coverage The 2014 2015 engines are warranted for two 2 years If any emissions related part on your engine is defective the part will be repaired or replaced by HFT Page 26 For technical questions please call 1 888 866 5797 of the required maintenance listed in your Owner s Manual HFT recommends that you retain all receipts covering maintenance on your engine but HFT cannot deny warranty solely for the lack of receipts or for your fai
7. OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS To take advantage of this warranty the product or part must be returned to us with transportation charges prepaid Proof of purchase date and an explanation of the complaint must accompany the merchandise If our inspection verifies the defect we will either repair or replace the product at our election or we may elect to refund the purchase price if we cannot readily and quickly provide you with a replacement We will return repaired products at our expense but if we determine there is no defect or that the defect resulted from causes not within the scope of our warranty then you must bear the cost of returning the product This warranty gives you specific legal rights and you may also have other rights which vary from state to state Emissions Control System Warranty California and United States Emissions Control Defects Warranty Statement The California Air Resources Board herein CARB the United States Environmental Protection Agency herein EPA and Harbor Freight Tools herein HFT are pleased to explain the emissions control system warranty on your 2014 2015 Small Off Road Engine herein engine In California the engine must be 4 designed built and equipped to meet the State s stringent anti Owner s Warranty Responsibilities smog standards Elsewhere Within the United States new off As the engine owner
8. result in a hazardous situation Do not operate the equipment with known leaks in the engine s fuel system WARNING This product contains or when used produces a chemical known to the State of California to cause cancer and birth defects or other reproductive harm California Health amp Safety Code 8 25249 5 et seq Service Precautions 1 Before service maintenance or cleaning a Turn the engine switch to its OFF position b Allow the engine to completely cool c Then remove the spark plug caps from the spark plugs Keep all safety guards in place and in proper working order Safety guards include muffler air cleaner mechanical guards and heat shields among other guards Do not alter or adjust any part of the equipment or its engine that is sealed by the manufacturer or distributor Only a qualified service technician may adjust parts that may increase or decrease governed engine speed Wear ANSI approved safety goggles heavy duty work gloves and dust mask respirator during service Maintain labels and nameplates on the equipment These carry important information If unreadable or missing contact Harbor Freight Tools for a replacement 24 25 26 27 When spills of fuel or oil occur they must be cleaned up immediately Dispose of fluids and cleaning materials as per any local state or federal codes and regulations Store oil rags in a bottom ventilated covered metal co
9. tank not included must be designed specifically for containing gasoline and must be mounted to a stable mounting frame Some areas may have specific gasoline vapor containment requirements comply with local state and federal laws fuel hose connection 3 Connect a fuel hose from the fuel tank to the exposed port of the Fuel Filter and secure it in place with a hose clamp See Figure S SETUP Figure S Fuel Hose Connector PREDATOR ENGINES ITEM 61614 For technical questions please call 1 888 866 5797 Page 15 Q Read the ENTIRE IMPORTANT SAFETY INFORMATION section at the beginning of this manual including all text under subheadings therein before set up or use of this product Pre Start Checks Inspect engine and equipment looking for damaged loose and missing parts before set up and starting If any problems are found do not use equipment until fixed properly Checking and Filling Engine Oil NOTICE Your Warranty is VOID if the engine s crankcase is not properly filled with oil before each use Before each use check the oil level Do not run the engine with low or no engine oil Running the engine with no or low engine oil WILL permanently damage the engine 1 sure the engine is stopped and is level 2 Close the Fuel Valve if equipped 3 Clean the top of the Dipstick and the area around it Pull the Dipstick out and wipe it off with a clean lint free rag 4 Reinsert the Dipstick an
10. 9 155 12 0 mI emis g 3 e 2 5 2 S e eS 528 l 9 m Sie a 855 2 68 SiS ol 8 5 5 8 88 5 gt n 5 So lel 9 212 5 a 5 3 o o D gt Io e 3 5 T o Em 5 FPEEFEPPEREEEEEPPEEF REF EREERE EFE He sce 1 8 NININININ gt gt gt AJIN A 1 ing Seal Hose Oil Filter Installation 9 1 Clamp ing Pipe Pipe 5 Radiator Bolt 31 1 3 NJO 128 Regulator Voltage 129 For technical questions please call 1 888 866 5797 Bolt 135 a d 8 139 142 4 E ER 10 RIO Ed ETE E Ed CIS alos o Part Description Bot alo o ajo A NIN o Air Cleaner Top Cover c Air Cleaner Spacer A 3 gt 1 2 421 1429 alala AIR N ja 5 5 5 0 2 m i D gt 5 5 g m UJ 0 o Coil Ignition 41 41 1 1 1 1 1 1 14 1 1 1 1 15 Bes Coil Charge 154 x x WIN Flywheel 157 Bolt Flywheel Impeller Setting 166 Spring Governor Throttle Support Throttle Rod Throttle Rod Spring Choke Rod Clip Choke Rod Throttle Cable Motor ControlBox Control Box Support 183 Muffler Asm Nuts 186 Gasket Exhaust Outlet 187 Spark Collector 1 ool 01 alalo al
11. 9 Clean the top of the Dipstick and the area around it Pull the Dipstick out and wipe it off with a clean lint free rag 10 Remove the Oil Fill Plug and add the appropriate type of oil until the oil level is at the proper level SAE 10W 30 oil is recommended for general use The SAE Viscosity Grade chart shows other viscosities to use in different average temperatures Replace the Oil Fill Plug 11 Insert the Dipstick back into the housing NOTICE Do not run the engine with too little oil The engine will be permanently damaged 0 1000000 9 00990990900920 229 0020020200220 20 L2 7277 Doloron on toate cs ee ut 30 10W 30 Average outdoor temperature Table B SAE Viscosity Grade MAINTENANCE ITEM 61614 For technical questions please call 1 888 866 5797 Page 21 Air Filter Maintenance 1 Remove the Air Cleaner Top Cover and 3 Clean Foam Air Filter the air filter elements and check for Wash the Filter in warm water and mild dirt Clean as described below detergent several times Rinse Squeeze out 2 Clean Paper Air Filter excess water and allow it to dry completely Soak the Filter in lightweight oil briefly To prevent injury from dust and debris wear then squeeze out the excess ANSI approved safety goggles NIOSH approved dust mask respirator and heavy duty work gloves 4 Install the cleaned filter Secure the Air In a well ventilated area away from bystanders Cl
12. AL improvements actual product may differ slightly from the product described herein Tools required for assembly and service may not be included Table of Contents Specifications 2 20 Safety ei entere dietus 3 Troubleshooting 24 6 Warranties 26 Operation 16 Parts Lists and Diagrams 28 Specifications Displacement Engine Tvpe Horizontal Vertical Double Cylinder 9 4 stroke Cooling System Forced air cooled unleaded gasoline SAE 10W 30 above 32 F Engine Oil SAE 5W30 at 32 F or below Sound Level at 3 feet 88 dB Bore x Stroke 78 mm x 70 mm Compression Ratio Rotation viewed from PTO NGK BPR5ES Type Spark Plugs 07 08 0 13 0 17 mm Valve Clearance 0 18 022 mm Speed fide 1800 RPM End Tapped 3 8 24 UNF The emissions control system for this Engine is warranted for standards set by the U S Environmental Protection Agency and by the California Air Resources Board also known as CARB For warranty information refer to the last pages of this manual PREDATOR ENGINES Page 2 For technical questions please call 1 888 866 5797 ITEM 61614 WARNING SYMBOLS AND DEFINITIONS This is the safety alert symbol It is used to ale
13. ALL REPAIRS AND PARTS REPLACEMENTS SHOULD BE UNDERTAKEN BY CERTIFIED AND LICENSED TECHNICIANS AND NOT BY THE BUYER THE BUYER ASSUMES ALL RISK AND LIABILITY ARISING OUT OF HIS OR HER REPAIRS TO THE ORIGINAL PRODUCT OR REPLACEMENT PARTS THERETO OR ARISING OUT OF HIS OR HER INSTALLATION OF REPLACEMENT PARTS THERETO ITEM 61614 For technical questions please call 1 888 866 5797 Page 27 MAINTENANCE gt 2 m gt 2 m Parts Lists and Diagrams Parts List Part 2 N 1 Metal Head Gasket Stud Stud Cover Right Cylinder Head 0 NO Em RK Oil Fill Plug Seal Breather Separator Breather Plate Breather Gasket Breather Gasket Clamp Bolt Bolt Spring Wire Clamp Breather Hose Intake Nut Bolt Sleeve ing Clamp ing Clamp N Fuel Oil Separator Clamp Bolt Bolt Bolt Pin 2 O Ring Bolt Pin ER Spring Pressure Relief Valve UJ n 0 0 11111 UJ U 00100 UJ FIFS FL KAPARA A z lt 0 V 51412 310 13 o D o o lo ja 7 lt oU 2 gt o 1115 5110 x D 019151015 19 10 5 a lala JS 5 8 8 8 Bln 3 28141 5 o S Omer Oo o3 5 IS lelzielss3l3 ozisis 15 et 2 15 0101515 1 08 1 0 0 IDTE eE 0 5 g lt 6108 15116191818 5 S S 58 o EISE 05 gt S
14. Owner s Manual amp Safety Instructions Save This Manual Keep this manual for the safety warnings and precautions assembly operating inspection maintenance and cleaning procedures Write the product s serial number in the back of the manual near the assembly diagram or month and year of purchase if product has no number Keep this manual and the receipt in a safe and dry place for future reference PREDATOR ENGINES 670cc V Twin Horizontal Engine A DANGER Using an engine indoors CAN KILL YOU IN MINUTES Engine exhaust contains carbon monoxide This is a poison you cannot see or smell ee NEVER use inside Only use OUTSIDE a home or garage and far away from EVEN IF doors and windows doors windows are open and vents Visit our website at http www harborfreight com Email our technical support at productsupport harborfreight com ITEM 61614 When unpacking make sure that the product is intact and undamaged If any parts are missing or broken please call 1 888 866 5797 as soon as possible Copyright 2013 by Harbor Freight Tools All rights reserved No portion of this manual or any artwork contained herein may be reproduced in Read this material before using this product any shape or form without the express written consent of Harbor Freight Tools Failure to do so can result in serious injury Diagrams within this manual may not be drawn proportionally Due to continuing SAVE THIS MANU
15. ala x was a o e Q 9 9 3 3 N a O I 5 DID ois olo 515 za o o E 55 15 o gt gt 0 o0 Ao z c 0 o lt A 2 o 0 c o a 4 w o 179 lt o 9 o 5 0 NI z 61614 Assembly Diagram Record Product s Serial Number Here Note If product has no serial number record month and year of purchase instead Note Some parts are listed and shown for illustration purposes only and are not available individually as replacement parts AONVNALNIVIN For technical questions please call 1 888 866 5797 Page 29 ITEM 61614 Mounting Hole Diagram Note Not to scale 7 7 195 5mm E 4 625 117 5mm 4 102mm 4 101 5mm 3 375 86mm gt 2 m gt 2 m Page 30 For technical questions please call 1 888 866 5797 ITEM 61614 Power Take Off Diagram Note Not to scale 2 84 72 2mm 2 375 60 5mm 3 8 24UNF 1 1 28mm 1 4 36mm 5 3 135mm 4x 3 8 16UNC 4x 7 16 14UNC T J 4 ITEM 61614 For t
16. all also extend to the failure of any engine components caused by the failure of any warranted part while it is still covered under this warranty Coverage Exclusions Warranty claims shall be filed in accordance with the provisions of the HFT warranty policy explained in the box at the top of the previous page HFT shall not be liable for any loss of use of the engine for any alternative usage for any damage to goods loss of time or inconvenience Warranty coverage shall also be excluded for any part which fails malfunctions or is damaged due to failure to follow the maintenance and operating instructions set forth in the Owner s Manual including but not limited to a Use of parts which are not authorized by HFT b Improper installation adjustment or repair of the engine or of any warranted part unless performed by an authorized warranty center Failure to follow recommendations on fuel use contained in the Owner s Manual d Improper or inadequate maintenance of any warranted parts Repairs performed outside of the authorized warranty service dealers f Alterations by changing adding to or removing parts from the engine Service and Maintenance Component parts which are not scheduled for replacement as required maintenance or are scheduled only for regular inspection to the effect of repair or replace as necessary are warranted for the warranty period Any warranted part which is scheduled for replacement as required ma
17. articles to enter the carburetor affecting engine performance and or causing damage 4 If needed fill the Fuel Tank to about 1 inch under the fill neck of the Fuel Tank with 87 octane or higher unleaded gasoline that has been treated with a fuel stabilizer additive Follow fuel stabilizer manufacturer s recommendations for use 5 Then replace the Fuel Cap Wipe up any spilled fuel and allow excess to evaporate before starting engine To prevent FIRE do not start the engine while the smell of fuel hangs in the air 2 lt nc ou PREDATOR E N G INES ITEM 61614 For technical questions please call 1 888 866 5797 Page 17 m gt 2 Starting the Engine Before starting the engine 1 start a cold engine pull Choke Knob out to the START position To restart a warm engine push the Choke in to the RUN position 2 Open the Fuel Valve if equipped 3 Slide the Throttle or Speed Control Lever to 1 3 away from the SLOW position the turtle Note Some tools have a Speed Control Lever located elsewhere on the tool which functions the same as the Throttle Use the Speed Control Lever in place of the Throttle when the tool is so equipped 4 Insert the Key and turn it to START OFF START until the engine starts no more than a few seconds Release the Key when the engine starts Page 18 Follow the Set Up Instructions in this manual t
18. bilizer treated unleaded gasoline Do not use gasoline with more than 10 ethanol E15 E20 E85 etc Do not exceed equipment s load rating Have qualified technician diagnose and service engine Fill fuel tank with fresh 87 octane stabilizer treated unleaded gasoline Do not use gasoline with more than 10 ethanol E15 E20 E85 etc Use cold weather fuel and oil additives to prevent backfiring Have qualified technician diagnose and service engine MAINTENANCE Page 25 gt 2 m gt 2 m Limited 90 Day Warranty Harbor Freight Tools Co makes every effort to assure that its products meet high quality and durability standards and warrants to the original purchaser that this product is free from defects in materials and workmanship for the period of 90 days from the date of purchase This warranty does not apply to damage due directly or indirectly to misuse abuse negligence or accidents repairs or alterations outside our facilities criminal activity improper installation normal wear and tear or to lack of maintenance We shall in no event be liable for death injuries to persons or property or for incidental contingent special or consequential damages arising from the use of our product Some states do not allow the exclusion or limitation of incidental or consequential damages so the above limitation of exclusion may not apply to you THIS WARRANTY IS EXPRESSLY IN LIEU
19. d remove it to check the oil level The oil level should be up to the upper mark on the dipstick 5 Ifthe oil level is at or below the low mark remove the Oil Fill Plug and add the appropriate type of oil until the oil level is at the proper level SAE 10W 30 oil is recommended for general use Table B SAE Viscosity Grade on page 21 in the Maintenance section shows other viscosities to use in different average temperatures Replace the Oil Fill Plug 6 Insert the Dipstick back into the housing Figure T Oil Fill and Dipstick X m gt d 2 NOTICE Do not run the engine with too little oil The engine will be permanently damaged PREDATOR ENGINES Page 16 For technical questions please call 1 888 866 5797 ITEM 61614 Checking and Filling Fuel AAWARNING TO PREVENT SERIOUS INJURY FROM FIRE Fill the fuel tank in a well ventilated area away from ignition sources If the engine is hot from use shut the engine off and wait for it to cool before adding fuel Do not smoke 1 Clean the Fuel Cap and the area around it 2 Unscrew and remove the Fuel Cap 3 Remove the Strainer and remove any dirt and debris Then replace the Strainer Note Do not use gasoline containing more than 10 ethanol E10 Do not use E85 ethanol Add fuel stabilizer to the gasoline or the Warranty is VOID Note Do not use gasoline that has been stored ina metal fuel container or a dirty fuel container It can cause p
20. d right before the filter LEN Front Cover 101 Be careful to avoid damaging the fuel hose 27 3 Remove the Air Cleaner Top Knob 142a and the two Air Cleaner Front Knobs 102 See Figure A Air Cleaner Air Cleaner Top Knob 142a QD Front Knob Figure B Remove Front Cover Figure A Remove Knobs Page 8 For technical questions please call 1 888 866 5797 ITEM 61614 5 Remove the Air Cleaner Top Cover 142b and internal Air Cleaner components Spacer Foam and Paper Filters 142c 142e See Figure C Air Cleaner Top Cover 142b Air Cleaner Foam Air Filter 142d 2 Paper Air amp Filter 142e Figure C Remove Air Cleaner Top Cover and components 6 Remove the two Intake Cover Bolts 143 and the two Air Cleaner Base Bolts 146 See Figure D 7 Detach the top of the Fuel Filter Clip 147 from the Air Cleaner Base 142g Air Cleaner Base Bolts 146 Intake Cover Air Cleaner Base 1420 from Air Cleaner Base 8 Remove the Air Cleaner Base ITEM 61614 Spacer 142c For technical questions please call 1 888 866 5797 9 Remove the four Shroud Nuts 99 and the two Flange Shoulder Bolts 112 from the Shroud 100 The Flange Shoulder Bolt on the right holds the Lifting Bracket 111 in place See Figure E Flange Shoulder Bolt 112 Flange Shoulder Bolt 112 behind Lifting Bracket Shroud 100 Note Air Cleaner Front Cove
21. e Do not touch engine during use Let engine cool down after use Never store fuel or other flammable materials near the engine Only use a suitable means of transport and lifting devices with sufficient weight bearing capacity when transporting the engine Secure the engine on transport vehicles to prevent it from rolling slipping and tilting 14 17 19 20 For technical questions please call 1 888 866 5797 Set up and use only on a flat level well ventilated surface Wear ANSI approved safety goggles heavy duty work gloves and dust mask respirator during set up Use only lubricants and fuel recommended in the Specifications chart of this manual Fuel tank must be designed specifically for containing gasoline and must be mounted to a stable mounting frame Some areas may have specific gasoline vapor containment requirements comply with local state and federal laws Industrial applications must follow OSHA requirements Do not leave the engine unattended when it is running Turn off the engine and remove safety keys if available before leaving the work area The engine can produce high noise levels Prolonged exposure to noise levels above 85 dBA is hazardous to hearing Wear ear protection when operating the engine or when working nearby while it is operating Wear ANSI approved safety glasses and hearing protection during use People with pacemakers should consult their
22. eaner Top Cover before use use pressurized air to blow dust out of the Filter Spark Plug Maintenance NOTICE Using an incorrect spark plug may damage the engine 4 When installing a new spark plug s adjust the plug s gap to the specification on the Specifications chart Do not pry against the electrode the spark plug can be damaged 5 Install the new spark plug s or the cleaned spark plug s into the engine Gasket style Finger tighten until the gasket 1 Disconnect spark plug caps from ends of plugs contacts the cylinder head Clean out debris from around spark plugs then tighten about 1 2 2 3 turn more Non gasket style Finger tighten until the plug contacts the cylinder head then tighten about 1 16 turn more Using a spark plug wrench remove the spark plugs 3 Inspect the spark plugs If the electrode s is oily clean it using a clean dry rag If the electrode s has deposits on it polish it using emery paper If the white insulator is cracked NOTICE Tighten the spark plugs properly or chipped the spark plug needs to be replaced If loose the spark plugs will cause the engine to overheat Recommended Spark Plugs If overtightened the threads in the TORCH F5RTC engine block will be damaged BPR5ES 6 Apply dielectric spark plug boot protector not included to the end of the spark plugs and reattach the wires securely gt 2 m gt 2 m Page 22 Fo
23. echnical questions please call 1 888 866 5797 Page 31 PREDATOR ENGINES 3491 Mission Oaks Blvd PO 6009 Camarillo CA 93011 1 888 866 5797
24. ell ventilated area away from ignition sources If the engine is hot from use shut the engine off and wait for it to cool before proceeding Do not smoke NOTICE Warranty void if necessary adjustments are not made for high altitude use At high altitudes the engine s carburetor governor if so equipped and any other parts that control the fuel air ratio will need to be adjusted by a qualified mechanic to allow efficient high altitude use and to prevent damage to the engine and any other devices used with this product The fuel system on this engine may be influenced by operation at higher altitudes Proper operation can be ensured by installing an altitude kit at altitudes higher than 3000 ft above sea level At elevations above 8000 ft the engine may experience decreased performance even with the proper main jet Operating this engine without the proper altitude kit installed may increase the engine s emissions and decrease fuel economy and performance The kit should be installed by a qualified mechanic High Altitude Kit Parts List Qty 1 A4 Right Main Jet 6000 8000 ft 1 137d Outer Bowl O ring replacement 2 Inner Bowl O ring replacement 2 Part Qty Disassembly 1 Turn off the engine 4 Remove the Air Cleaner Front Cover 101 pulling it up then out See Figure B 2 Close the fuel valve if equipped If no fuel valve is equipped then clamp TE Air Cleaner the fuel hose close
25. f equipment will differ depending on factors such as duty cycle temperature air quality fuel quality and other factors Note The following procedures are in addition to the regular checks and maintenance explained as part of the regular operation of the engine and equipment 23 2 0 of use ae Brush off outside of Brush off outside of engine EET cr ee eee Checkaircleaner Cheksedmeteup EE change engine otansormmer Y EE SERIE AR e air filter Cleanreplaceairfilter v v bestem Replace fuel filter Check adjust idle speed Check adjust valve clearance Clean fuel tank strainer and carburetor Clean carbon build up from combustion chambers Replace fuel line if necessary Service more frequently when used in dusty areas These items should be serviced by a qualified technician PREDATOR ENGINES Page 20 For technical questions please call 1 888 866 5797 ITEM 61614 Checking and Filling Fuel AAWARNING TO PREVENT SERIOUS INJURY FROM FIRE Fill the fuel tank in a well ventilated area away from ignition sources If the engine is hot from use shut the engine off and wait for it to cool before adding fuel Do not smoke 1 Clean the Fuel Cap and the area around it 2 Unscrew and remove the Fuel Cap 3 Remove the Strainer and remove any dirt and debris Then replace the Strainer Note Do not use gasoline contai
26. gs in the air A SAVE THESE INSTRUCTIONS ITEM 61614 For technical questions please call 1 888 866 5797 Page 5 Read the ENTIRE IMPORTANT SAFETY INFORMATION section at the beginning of this manual including all text under subheadings therein before set up or use of this product AWARNING TO PREVENT SERIOUS INJURY Operate only with proper spark arrestor installed Operation of this equipment may create sparks that can start fires around dry vegetation A spark arrestor may be required The operator should contact local fire agencies for laws or regulations relating to fire prevention requirements WARNING DO NOT INSTALL THIS ENGINE ON A VEHICLE WARNING INSTALL THIS ENGINE ACCORDING TO EQUIPMENT INSTRUCTIONS BEFORE USE WARNING If you do not connect a battery to the positive battery cable wrap its terminal securely with electrical tape sold separately PREDATOR ENGINES Page 6 For technical questions please call 1 888 866 5797 ITEM 61614 Components and Controls Oil Fill Muffler Plug Lifting Bracket r Ye BN Spark Plug Air Cleaner Lifting Bracket Bee oke Spark Plug Switch 2 of 2 Ne Throttle Radiator Circuit Breaker ITEM 61614 For technical questions please call 1 888 866 5797 Page 7 SETUP High Altitude Operation Above 3000 feet AWARNING TO PREVENT SERIOUS INJURY FROM FIRE Follow instructions in a w
27. in a dry level well ventilated area out of reach of children Storage area should also be away from ignition sources such as water heaters clothes dryers and furnaces NOTICE During extended storage periods the Engine must be started every 3 months and allowed to run for 15 20 minutes or the Warranty is VOID 6 AFTER STORAGE Before starting the Engine during or after storage keep in mind that untreated gasoline will deteriorate quickly Drain the fuel tank and change to fresh fuel if untreated gasoline has been sitting for a month if treated gasoline has been sitting beyond the fuel stabilizer s recommended time period or if the Engine does not start NES MAINTENANCE ITEM 61614 For technical questions please call 1 888 866 5797 Page 23 2 m gt 2 m Troubleshooting Possible Causes Probable Solutions Engine will not start FUEL RELATED 1 No fuel in tank or fuel valve closed Choke not in START position cold engine Gasoline with more than 1096 ethanol used E15 E20 E85 etc Low quality or deteriorated old gasoline Carburetor not primed Dirty fuel passageways Carburetor needle stuck Fuel can be smelled in the air Too much fuel in chamber This can be caused by the carburetor needle sticking 9 Clogged Fuel Filter FUEL RELATED 1 9 Fill fuel tank with fresh 87 octane stabilizer treated unleaded gasoline and open f
28. intenance is warranted for the period of time up to the first scheduled replacement point for that part Any replacement part provided it is equivalent in durability and performance may be used in performance of maintenance or repairs The owner is responsible for commissioning a qualified technician mechanic to perform all required maintenance as outlined in the Inspection Cleaning and Maintenance section in this manual Warranted Parts 1 Fuel Metering System i Carburetor and its internal parts ii Fuel pump if so equipped iii Cold start enrichment system 2 Air Induction System i Intake pipe manifold ii Air cleaner 3 Ignition System i Spark plugs ii Magneto ignition system 4 Catalyst System if so equipped i Exhaust pipe stud ii Muffler iii Catalytic converter if so equipped 5 Miscellaneous Items Used in Above Systems i Vacuum temperature and time sensitive valves and switches ii Hoses belts connectors and assemblies PLEASE READ THE FOLLOWING CAREFULLY THE MANUFACTURER AND OR DISTRIBUTOR HAS PROVIDED THE PARTS LIST AND ASSEMBLY DIAGRAM IN THIS MANUAL AS A REFERENCE TOOL ONLY NEITHER THE MANUFACTURER OR DISTRIBUTOR MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE BUYER THAT HE OR SHE IS QUALIFIED TO MAKE ANY REPAIRS TO THE PRODUCT OR THAT HE OR SHE IS QUALIFIED TO REPLACE ANY PARTS OF THE PRODUCT IN FACT THE MANUFACTURER AND OR DISTRIBUTOR EXPRESSLY STATES THAT
29. lure to ensure the performance of all scheduled maintenance As the engine owner you should however be aware that HFT may deny you warranty coverage if your engine or a part has failed due to abuse neglect improper maintenance or unapproved modifications You are responsible for shipping your engine to a HFT warranty station as soon as a problem exists Contact the HFT Customer Service department at the number below to make shipping arrangements The warranty repairs should be completed in a reasonable amount of time not to exceed 30 days If you have any questions regarding your warranty rights and responsibilities you should contact the Harbor Freight Tools Customer Service Department at 1 888 866 5797 ITEM 61614 Harbor Freight Tools Emissions Control Defects Warranty Provisions 1 Length of Coverage HFT warrants to a first retail purchaser and each subsequent purchaser that the engine is free from defects in materials and workmanship that cause the failure of warranted parts for a period of two 2 years after the date of delivery to the first retail purchaser No Charge Repair or Replacement Repair or replacement of any warranted part will be performed at no charge to the owner if the work is performed through a warranty station authorized by HFT For emissions warranty service contact the HFT Customer Service Department at 1 888 866 5797 Consequential Damages Coverage Coverage under this warranty sh
30. ning more than 10 ethanol E10 Do not use E85 ethanol Add fuel stabilizer to the gasoline or the Warranty is VOID Engine Oil Change Note Do not use gasoline that has been stored ina metal fuel container or a dirty fuel container It can cause particles to enter the carburetor affecting engine performance and or causing damage 4 If needed fill the Fuel Tank to about 1 inch under the fill neck of the Fuel Tank with 87 octane or higher unleaded gasoline that has been treated with a fuel stabilizer additive Follow fuel stabilizer manufacturer s recommendations for use 5 Then replace the Fuel Cap 6 Wipe up any spilled fuel and allow excess to evaporate before starting engine To prevent FIRE do not start the engine while the smell of fuel hangs in the air ACAUTION Oil is very hot during operation and can cause burns Wait for engine to cool before changing oil 1 sure the engine is stopped and is level 2 Close the fuel valve if equipped 3 Place a drain pan not included underneath the crankcase s Oil Drain Plug 4 Remove the Oil Drain Plug and if possible tilt the crankcase slightly to help drain the oil out Recycle used oil 5 Replace the Oil Drain Plug and tighten it 6 Move the drain pan underneath the Oil Filter 7 Unthread and remove the Oil Filter Allow the oil to drain out of the filter completely before disposal 8 Install a new Oil Filter of the same size and type
31. ns please call 1 888 866 5797 Page 13 Battery Setup Instructions 1 Place a fully charged lead acid 12 volt 36 Ah battery not included in a stable solenoid on flat location near the engine Starter 164 2 Only use cables sized to match red wire to positive their length according to battery cable Cable Gauge lower gauge numbers mean thicker cables Maximum Cable Length connect negative battery cable to a mounting bolt Table A Minimum Cable Diameters 3 Attach the positive cable from the positive battery Figure Q Battery Cable Connections terminal to the outer terminal on the Starter s 164 solenoid see Figure Q and Figure R Connect cable securely to prevent disconnection and short circuits Connect Cable from Positive Battery 4 Attach the negative cable to the Terminal te this Starter negative battery terminal Terminal 5 Connect the negative cable securely to one of the engine mounting bolts as shown in Figure Q Connect cable securely to prevent disconnection and short circuits 6 Coatthe terminals and cable ends with Figure R Connect Positive to this Terminal a corrosion preventive coating PREDATOR ENGINES Page 14 For technical questions please call 1 888 866 5797 ITEM 61614 Fuel Tank Setup Instructions 1 If possible incorporate a fuel shutoff valve lt on the fuel hose neither included S SMS S SMS we PE 2 WARNING Fuel
32. ntainer Keep hands and feet away from moving parts Do not reach over or across equipment while operating Before use check for misalignment or binding of moving parts breakage of parts and any other condition that may affect the equipment s operation damaged have the equipment serviced before using Many accidents are caused by poorly maintained equipment SAFETY Use the correct equipment for the application Do not modify the equipment and do not use the equipment for a purpose for which it is not intended Have the equipment serviced by a qualified repair person using only identical replacement parts This will ensure that the safety of the equipment is maintained Do not attempt any service or maintenance procedures not explained in this manual or any procedures that you are uncertain about your ability to perform safely or correctly Store equipment out of the reach of children Follow scheduled engine and equipment maintenance Refueling 1 Do not smoke or allow sparks flames or other sources of ignition around the equipment especially when refuelling Do not refill the fuel tank while the engine is running or hot Do not fill fuel tank to the top Leave a little room for the fuel to expand as needed Refuel in a well ventilated area only Wipe up any spilled fuel and allow excess to evaporate before starting engine To prevent FIRE do not start the engine while the smell of fuel han
33. o prepare the engine Follow the Set Up Instructions in the equipment manual to prepare the equipment Inspect the equipment and engine Fill the engine with the proper amount and type of both unleaded gasoline and oil Read the Equipment Operation section in the equipment manual uM For technical questions please call 1 888 866 5797 ITEM 61614 5 Allow the Engine to run for several seconds Then if the Choke Knob is in the pulled out START position push the Choke Knob in very slowly to its RUN position Note Moving the Choke Knob too fast could stall the engine IMPORTANT Allow the engine to run at no load for five minutes after each start up so that the engine can stabilize 6 Adjust the Throttle as needed Break in Period a Breaking in the engine will help to ensure proper equipment and engine operation b The operational break in period will last about 3 hours of use During this period Do not apply a heavy load to the equipment Do not operate the engine at its maximum speed c The maintenance break in period will last about 20 hours of use Change the engine oil after this period Under normal operating conditions subsequent maintenance follows the schedule explained in the MAINTENANCE section Stopping the Engine 1 To stop the engine an emergency Y ON i turn the Key to OFF Z lt nc ou 2 Under normal conditions use the following procedure
34. ose 17 Locate the Choke Rod 177 connection on the right side of the carburetor See Figure J Choke Rod Clip 176 Rod 177 NV 8 Figure J Disconnect Choke Rod 18 Swing the black Choke Rod Clip 176 aside to release the Choke Rod Disconnect the Choke Rod ITEM 61614 19 At the front of the Carburetor remove the Bolt 38 holding the Fuel Pump Bracket 40 in place See Figure K Fuel Pump Bracket 40 Figure K Remove Fuel Pump Bracket 20 Underneath where the Fuel Pump Bracket was the Solenoid Valve 138 is connected Note the location of the green wire and green dot on the connector Unplug the connector See Figure L Bolt 133 Carburetor Intake Elbow 131 1 Bolt Bolt 132 Note location f dots here Solenoid wire connector Figure L Disconnect Solenoid Valve wire connector 21 Remove Bolt 133 and two Bolts 132 from the Carburetor Intake Elbow 131 See Figure L 22 Remove the Carburetor assembly from the engine Keep it upright it may contain fuel ITEM 61614 For technical questions please call 1 888 866 5797 Page 11 23 Hold the fuel drain port over a bowl and open the Carburetor Drain Plug 137a to allow fuel to drain out of that port Once the carburetor is empty close the Carburetor Drain Plug See Figure M Carburetor Drain Plug Li e 137 Figure Carburetor Drain 24 Turn the Ca
35. r is still shown although it should have been removed in step 4 Figure E Remove Shroud 10 Remove the Shroud Page 9 11 WARNING TO PREVENT SERIOUS INJURY FROM FIRE BEFORE CONTINUING a Make sure that the work area is well ventilated and that there are no ignition sources b Have multiple class ABC fire extinguishers available c Double check that fuel hose leading from fuel tank to Fuel Filter is clamped or fuel valve is closed d Use a safe proper means to clean up all fuel spills immediately 12 Squeeze the Spring Clamp 140 and slide it back Detach the Fuel Hose 141 from the port at the top of the Carburetor See Figure F 25 5 Clamp 140 Figure F Detach Fuel Hose 13 Locate the Throttle Rod 174 connection on the left side of the carburetor See Figure G A j i o Throttle Rod Spring 175 Figure Disconnect Throttle Rod 14 A Swing the black Throttle Rod Clip 139 down to release the Throttle Rod See Figure H B Pull the Throttle Rod out of the Clip Figure H Throttle Rod Clip Page 10 For technical questions please call 1 888 866 5797 15 Disconnect the Throttle Rod Spring from the Throttle Rod Clip 16 Squeeze the Spring Wire Clamp 32 and slide it back Detach the Breather Hose 33 from the right side of the Carburetor See Figure Spring Wire gt Clamp 32 3 3 N Figure 1 Detach Breather H
36. r technical questions please call 1 888 866 5797 ITEM 61614 Storage When the equipment is to remain idle for longer than 20 days prepare the Engine for storage as follows 1 CLEANING Wait for Engine to cool then clean Engine with dry cloth NOTICE Do not clean using water The water will gradually enter the Engine and cause rust damage Apply a thin coat of rust preventive oil to all metal parts 2 FUEL To protect the fuel tank during storage fill the tank with gasoline that has been treated with a fuel stabilizer additive Follow fuel stabilizer manufacturer s recommendations for use Refer to Checking and Filling Fuel on page 17 AA WARNING TO PREVENT SERIOUS INJURY FROM FIRE Fill tank in a well ventilated area away from ignition sources If the engine is hot from use shut the engine off and wait for it to cool before adding fuel Do not smoke 3 LUBRICATION a Change engine oil b Clean out area around spark plug Remove spark plug and pour one tablespoon of engine oil into cylinder through spark plug hole PREDATOR E N G c Replace spark plug but leave spark plug cap disconnected d Pull Starter Handle to distribute oil in cylinder Stop after one or two revolutions when you feel the piston start the compression stroke when you start to feel resistance 4 BATTERY Disconnect battery cables if equipped Recharge batteries monthly while in storage 5 STORAGE AREA Cover and store
37. rburetor assembly over 25 Remove the four Carburetor Bowl Bolts 137b and remove the Carburetor Bowl 137c See Figure N Figure N Carburetor Bowl Bolts 26 Use a carburetor screwdriver sold separately to remove the Left Main Jet and replace it with the proper replacement Left Main Jet A1 or A3 for the altitude See Figure O 27 Use a carburetor screwdriver to remove the Right Main Jet and replace it with the replacement Right Main Jet A2 or A4 for the same altitude as the Left Main Jet See Figure O Right Left Main Jet 77 Main Jet A2 A4 A x A1 A3 Note Since carburetor is upside down left and right sides are reversed Figure O Main Jets PREDATOR E N G Page 12 For technical questions please call 1 888 866 5797 NES ITEM 61614 Reassembly Note Reassembly step references shown in brackets 1 Replace the Outer and Inner Bowl O rings 137d 137e with the replacements from the altitude kit Do not reuse existing O rings Inner Bowl O ring Outer Bowl O ring Carburetor Bowl Figure P Replace Bowl O rings 2 Assemble the Carburetor Bowl using four Carburetor Bowl Bolts 25 Assemble Carburetor Intake Elbow to Intake using Bolts 21 3 Attach Solenoid Valve connector line up green wire with the green dot on the connector 20 4 Attach Fuel Pump Bracket to front of intake using Bolt Gently lift the Bracket after assembly to ensure proper alignment 19
38. rstood by the operator that common sense and caution are factors which cannot be built into this product but must be supplied by the operator SAVE THESE INSTRUCTIONS ITEM 61614 For technical questions please call 1 888 866 5797 Page 3 o gt m lt Set up Precautions 1 Gasoline fuel and fumes are flammable and potentially explosive Use proper fuel storage and handling procedures Do not store fuel or other flammable materials nearby Have multiple ABC class fire extinguishers nearby Operation of this equipment may create sparks that can start fires around dry vegetation A spark arrestor may be required The operator should contact local fire agencies for laws or regulations relating to fire prevention requirements Operating Precautions CARBON MONOXIDE HAZARD Using an engine indoors CAN KILL YOU IN MINUTES Engine exhaust contains carbon monoxide This is a poison you cannot see or smell 1 Page 4 NEVER use inside a home or garage EVEN IF doors and windows are open ar Only use OUTSIDE and far away from windows doors and vents Keep children away from the equipment especially while it is operating Keep all spectators at least six feet from the Engine during operation Fire Hazard Do not fill fuel tank while engine is running Do not operate if gasoline has been spilled Clean spilled gasoline before starting engine Do not operate near pilot light or open flam
39. rt you to potential personal injury hazards Obey all safety messages that follow this symbol to avoid possible injury or death A DANGER Indicates a hazardous situation which if not avoided will result in death or serious injury AWARNING Indicates a hazardous situation which if not avoided could result in death or serious injury SAFETY Indicates a hazardous situation which if not avoided ACAUTION could result in minor or moderate injury NOTICE CAUTION Addresses practices not related to personal injury Symbol Definitions Symbol Property or Statement Property or Statement WARNING marking concerning RPM Revolutions Per Minute Risk of Respiratory Injury Operate engine OUTSIDE and far away WARNING marking concerning WARNING marking eoncetning Risk of Eye Injury Wear ANSI approved walle handing ust AE Do not smoke while handling fuel safety goggles with side shields WARNING marking concerning Read the manual before Risk of Fire set up and or use Do not refuel while operating Keep flammable objects WARNING marking concerning away from engine Risk of Hearing Loss Wear hearing protection IMPORTANT SAFETY INSTRUCTIONS WARNING Read all instructions Failure to follow all instructions listed below may result in fire serious injury and or DEATH The warnings and precautions discussed in this manual cannot cover all possible conditions and situations that may occur It must be unde
40. uel flow 4 Faulty magneto Disconnected or improperly connected spark plug caps Starter motor has overheated Dirty air filter Engine running cold Old or low quality gasoline 2 Engine overloaded Incorrect spark timing deposit buildup worn engine or other mechanical problems Impure or low quality gasoline Engine too cold Intake valve stuck or overheated engine Incorrect timing For technical questions please call 1 888 866 5797 Check engine timing Check wire connections Re gap or replace spark plugs Replace spark plug caps 4 Use only fresh 87 octane stabilizer treated unleaded gasoline Do not use gasoline with more than 10 ethanol E15 E20 E85 etc Diagnose and repair compression Use Engine will not start COMPRESSION RELATED section Fill fuel tank with fresh 87 octane stabilizer treated unleaded gasoline Do not use gasoline with more than 10 ethanol E15 E20 E85 etc Fill engine oil to proper level Check engine oil before EVERY use Test replace fuel tank cap 4 Have qualified technician service magneto Secure spark plug caps Allow starter motor to cool then press circuit breaker button on control panel Do not use starter for more than a few seconds at a time Clean or replace element Allow engine to warm up prior to operating equipment Fill fuel tank with fresh 87 octane sta
41. uel valve Do not use gasoline with more than 10 ethanol E15 E20 E85 etc Move Choke to START position Clean out ethanol rich gasoline from fuel system Replace components damaged by ethanol Use fresh 87 octane stabilizer treated unleaded gasoline only Do not use gasoline with more than 10 ethanol E15 E20 E85 etc Use fresh 87 octane stabilizer treated unleaded gasoline Do not use gasoline with more than 10 ethanol E15 E20 E85 etc Pull on Starter Handle to prime Clean out passageways using fuel additive Heavy deposits may require further cleaning Gently tap side of carburetor float chamber with screwdriver handle Turn Choke to RUN position Remove spark plugs and briefly turn the key to start to air out the chambers Reinstall spark plugs and set Choke to START position Replace Fuel Filter IGNITION SPARK RELATED Spark plug caps not connected securely Spark plug electrodes wet or dirty Incorrect spark plug gaps Spark plug caps broken Circuit breaker tripped Incorrect spark timing or faulty ignition system IGNITION SPARK RELATED Connect spark plug caps properly Clean spark plugs Correct spark plug gaps Replace spark plug caps Reset circuit breaker Check wiring and starter motor if breaker continues to trip Have qualified technician diagnose repair ignition system COMPRESSION RELATED 1
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