Harbor Freight Tools (420cc) Product manual
Contents
1. a 52 2 53 ds gt 55 gt 56 2 2577 Y Oo 58 i m 59 60 Page 20 Gasket Cylinder Head Cover Sub Cylinder Head Gasket Cylinder Head Cover ube Breather Bolt Sub Cylinder Head Cover Stud Stud 7 Plug Spark Head Sub Cylinder Crankcase Sub Seal Oil rame Fuel Tank Installation Plug Rubber Protector Oil Bolt Washer Flat Bolt Drain Plug 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 Arm Governor Seal Oil Bolt Bolt Washer Flat Bearing 7 Plug Sub Engine Oil 2 Bolt Bearing Gear Assy Governor Seal Oil Bearing Crankshaft Assy ing Set Oil Clip Piston Pin Piston Pin Piston Rod Connecting ing Primar Secondar Camshaft Assy Valve Exhaust Valve Intake Seat Valve Spring UJ D 5 Q 5 Q Tolzolo TAF a m o 315 mie 5 5 S AJo o o o lt 65 Ola m 5 c 2 0 2 5 D AE 3 z o I o Oo a O n i 2 7 N 2 Rotator Valve uide Seal appet Valve ifter Sub Valve Plate Sub Lifter Stopper Bolt Valve Adjusting Rocker Valve Nut Valve Adjusting imi JR Fo ES E 515 5 Quo Q 5 s 5 D c o S z For technical questions please c2. 18 19 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 Do not leave the equipment unattended when it is running Turn off the equipment and remove safety keys if available before leaving the work area Engine can produce high noise levels Prolonged exposure to noise levels above 85 dBA is hazardous to hearing Always wear ear protection when operating or working around the gas engine while it is operating Wear ANSI approved safety glasses hearing protection and NIOSH approved dust mask respirator under a full face shield along with steel toed work boots during use People with pacemakers should consult their 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
3. Tighten head If that does not remedy problem replace head gasket Have qualified technician diagnose repair ignition system Follow all safety precautions whenever diagnosing or servicing the equipment or engine Item 60340 Possible Causes Probable Solutions Engine misfires Engine stops suddenly Engine stops when under heavy load Engine knocks Engine backfires Follow all safety precautions whenever diagnosing or servicing the equipment or engine Item 60340 Spark plug cap loose Incorrect spark plug gap or damaged spark plug Defective spark plug cap Old or low quality gasoline Incorrect compression Low oil shutdown Fuel tank empty or full of impure or low quality gasoline Defective fuel tank cap creating vacuum preventing proper fuel flow 4 Faulty magneto Disconnected or improperly connected spark plug cap Dirty air filter Engine running cold Old or low quality gasoline 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 plug Replace spark plug cap Use only fresh 87 octane unleaded gasoline Do not use
4. chamber with screwdriver handle Turn Choke to RUN position Remove spark plug and pull the start handle several times to air out the chamber Reinstall spark plug and set Choke to CHOKE position Replace Fuel Filter IGNITION SPARK RELATED Spark plug cap not connected securely Spark plug electrode wet or dirty Incorrect spark plug gap Spark plug cap broken Circuit breaker tripped electric start models only Incorrect spark timing or faulty ignition system IGNITION SPARK RELATED Connect spark plug cap properly Clean spark plug Correct spark plug gap Replace spark plug cap Reset circuit breaker Check wiring and starter motor if breaker continues to trip Have qualified technician diagnose repair ignition system COMPRESSION RELATED 1 Page 18 Cylinder not lubricated Problem after long storage periods Loose or broken spark plug Hissing noise will occur when trying to start Loose oylinder head or damaged head gasket Hissing noise will occur when trying to start Engine valves or tappets mis adjusted or stuck For technical questions please call 1 888 866 5797 COMPRESSION RELATED 1 Pour tablespoon of oil into spark plug hole Crank engine a few times and try to start again Tighten spark plug If that does not work replace spark plug If problem persists may have head gasket problem see 3
5. condition that may affect the equipment s operation If damaged have the equipment serviced before using Many accidents are caused by poorly maintained equipment 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 hangs in the air A SAVE THESE INSTRUCTIONS Item 60340 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 al
6. 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 shall 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 c Failure to follow recommendations on fuel use contained in the Owner s Manual d Improper or inadequate maintenance of any warranted parts e Repairs performed outside of the authorized warranty service dealers f Alterations by changing adding to or removing parts from the engine 6 Service and Maintenance Component parts which are not scheduled for replacement as required main
7. gasoline with more than 10 ethanol E15 E20 E85 etc Diagnose and repair compression Use Engine will not start COMPRESSION RELATED section Fill engine oil to proper level Check engine oil before EVERY use Fill fuel tank with fresh 87 octane unleaded gasoline Do not use gasoline with more than 10 ethanol E15 E20 E85 etc Test replace fuel tank cap 4 Have qualified technician service magneto Secure spark plug cap Clean or replace element Allow engine to warm up prior to operating equipment Fill fuel tank with fresh 87 octane 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 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 19 Part ses 2 3 A 3j 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
8. 000 8000 ft a ne cauto mm Jet amp g Cup RR ae Seal amp sot Item 60340 For technical questions please call 1 888 866 5797 Page 7 Engine Controls Air Filter Fuel Cap C Engine Switch Starter Handle Muffler A OL Ok S NN 2 o ay Location Write on front cover of manual Page 8 For technical questions please call 1 888 866 5797 Item 60340 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 Make sure the engine is stopped and is level 2 Close the Fuel Valve 3 Clean the top of the Dipstick and the area around it Remove the Dipstick by threading it counterclockwise and wipe it off with a clean lint free rag Fill the fuel tank in a well ventilated area Checking and Filling Fuel away from ignition sources If the eng
9. 4 2015 Small Off Road Engine herein engine Within the United States new off road spark ignition engines certified for model year 2014 2015 must be designed built and equipped to meet the stringent anti smog standards set forth by the EPA HFT must warrant the emission 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 Harbor Freight Tools Emission Control Defects Warranty Coverage Engines are warranted for a period of two 2 years relative to emission control parts defects subject to the provisions set forth below If any emission related part on your engine is defective the part will be repaired or replaced by HFT Owner s Warranty Responsibilities As the engine owner you are responsible for the performance 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 failure 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 Your emission 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 emission related assemblies Where a wa
10. 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 rere PREDATOR ENGINES Horizontal Engine 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 predator harborfreight com ITEM 60340 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 2012 by Harbor Freight Tools All rights reserved No portion of this manual or any artwork contained herein may be reproduced 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 MANUAL improvements ac
11. R 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 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 Record Product s Serial Number Here Note Some parts are listed and shown for illustration purposes only and are not available Note If product has no serial number individually as replacement parts record month and year of purchase instead Page 22 For technical questions please call 1 888 866 5797 Item 60340 3 8 24UNF 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 sha
12. able toa Mounting Bolt 6 Coat the terminals and cable ends with a corrosion preventive coating 3 Attach the positive cable from the positive battery terminal to the Positive Terminal on the starter solenoid uncovered terminal shown above Connect cable securely to prevent disconnection and short circuits Page 6 For technical questions please call 1 888 866 5797 Item 60340 High Altitude Operation Above 3000 feet WARNING TO PREVENT SERIOUS INJURY FROM FIRE Follow instructions 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 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
13. all 1 888 866 5797 Parts List and Diagram Parts List Nut Valve Lock Part Description 61 Nut Valve Lock 1 62 Spring Valve 63 Retainer Valve Spring 64 __ Starter Assy Recoil 65 Bolt Shroud SS 67 Shroud Cylinder Body Bolt ore ee Bot Carburetor Assy Gasket AirCleaner Gasket Carburetor Plate Carburetor Insulator Gasket Inlet Nut Cleaner Air 61 62 63 64 65 66 67 68 69 70 71 72 73 ELEM 75 76 77 Bot 5 5 5 5 f 78 Gasket Muffler 79 Exhaust 80 81 82 83 84 85 86 87 38 89 90 91 92 93 94 95 96 a 1 2 3 4 5 7 70 71 72 73 74 75 76 TT 78 79 81 82 83 84 85 87 88 91 92 93 94 95 97 Gasket Exhaust Outlet Nut Muffler Assy Tank Strainer Fuel Cover Fuel Tank 0 Outlet Sub Fuel Tank Oil Fuel Clip lt 2 Valve One Way Clamp Fuel Steam __ 97 Flywheel 98 Pulley Starter 99 Impeller 1 100 FlywheelSub 101 102 Clamp ChargeCol 103 Coil Sub Charge 104 Bolt 105 Coil Ignition 106 Bolt S 107 Control Assy Throttle 108 B
14. and performance The kit should be installed by a qualified mechanic 1 Turn off the engine 2 Close the fuel valve 3 Place a bowl under the fuel cup to catch any spilled fuel CAUTION Carburetor bowl may have gas in it which will leak upon removing the bolt 4 Unthread the bolt holding the fuel cup 5 Remove the bolt Bolt Seal fuel cup Fuel Cup Seal and Main Jet from the body of the carburetor assembly A carburetor screwdriver not included is needed to remove and install the Main Jet Note The mixing tube is held in place by the Main Jet and might fall out when it is removed If it falls out replace it in the same orientation before replacing the Main Jet 6 Replace the Main Jet with the replacement Main Jet needed for your altitude range part 1a or 2a Note The Fuel Cup Seal and Bolt Seal may be damaged during removal and should be replaced with the new ones from the kit 7 Replace the Fuel Cup Seal 4a fuel cup Bolt Seal 3a and bolt Tighten in place CAUTION Do not cross thread bolt when tightening Finger tighten first and then use a wrench to make sure the bolt is properly threaded 8 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 Carburetor Assembly High Altitude Kit Parts List A Fuel Cup Seal Description Qty Main Jet 3000 6000 ft Mixing Tube Main Jet 6
15. ay from ignition sources If the engine is hot from use shut the engine off and wait for it to cool before draining fuel Do not smoke a Place a funnel leading to a proper gasoline container below the carburetor Sediment Cup some engines b Remove the drain bolt from the bottom of the carburetor bowl and allow the fuel to drain c Remove the small sediment cup next to the bowl and allow the fuel to drain from there as well PREDATOR NES ENG I Item 60340 For technical questions please call 1 888 866 5797 d Open the fuel valve After all fuel has drained reinstall the drain bolt and sediment cup if equipped Tighten securely 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 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 BATTERY Disconnect battery cables if equipped Recharge batteries monthly while in storage STORAGE AREA Cover and store 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 AFTER STORAGE Before starting the engine after storage keep in mi
16. could result in minor or moderate injury NOTICE CAUTION Addresses practices not related to personal injury Symbol Definitions WARNING marking concerning Operate engine OUTSIDE and far away wm ieee _ from windows doors and vents WARNING marking concerning WARNING marking concerning Risk of Eye Injury Wear ANSI approved Risk of Fire while handling fuel safety goggles with side shields Do not smoke while handling fuel WARNING marking concerning Risk of Fire Read the manual before set up and or use Do not refuel while operating Keep flammable objects away from engine WARNING marking concerning Risk of Hearing Loss Wear hearing protection Safety Warnings 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 understood 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 60340 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 multip
17. ctane or higher unleaded gasoline Note Do not use gasoline containing more than 10 ethanol E10 Do not use E85 ethanol 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 Then replace the Fuel Cap 5 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 Item 60340 For technical questions please call 1 888 866 5797 Engine Oil Change AcautTIon Oil is very hot during operation and can cause burns Wait for engine to cool before changing oil 1 Make sure the engine is stopped and is level 2 Close the Fuel Valve 3 Place a drain pan not included underneath the crankcase s drain plug 4 Remove the drain plug and if possible tilt the crankcase slightly to help drain the oil out Recycle used oil Replace the drain plug and tighten it Clean the top of the Dipstick and the area around it Remove the Dipstick by threading it counterclockwise and wipe it off with a clean lint free rag Full level Full level 7 Add the appropriate type of oil until the oil level is at the full level SAE 10W 30 oil is recommended for general use The SAE Viscosity Grade chart shows other viscosities to use in different average temperatures SAE Viscosity Grade
18. d or chipped the spark plug needs to be replaced Use only NHSPG Torch amp F6TC spark plug NOTICE Using an incorrect spark plug may damage the engine 4 When installing a new spark plug adjust the plug s gap to the specification on the Technical Specifications chart Do not pry against the electrode the spark plug can be damaged Install the new spark plug or the cleaned spark plug into the engine Gasket style Finger tighten until the gasket contacts the cylinder head then tighten about 1 2 2 3 turn more Non gasket style Finger tighten until the plug contacts the head then tighten about 1 16 turn more NOTICE Tighten the spark plug properly If loose the spark plug will cause the engine to overheat If overtightened the threads in the engine block will be damaged 6 For technical questions please call 1 888 866 5797 Apply dielectric spark plug boot protector not included to the end of the spark plug and reattach the wire securely Item 60340 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 AWARNING TO PREVENT SERIOUS INJURY FROM FIRE CN Drain the fuel tank in a well ventilated area aw
19. ds of each piece of 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 Eel ie hr of use EET P use p 4 Checkaircleaner v wv v P Y Checkdepositcup v v v P Y Change engineoi v P v v v Clean replace air cleaner E DEINCEPS IE GE 0 Check and clean spark plug gno ie aho et Check adjust idle speed Check adjust valve clearance Clean fuel tank strainer and carburetor Clean carbon build up from combustion chamber Replace fuel line if necessary a Service more frequently when used in dusty areas These items should be serviced by a qualified technician PREDATOR ENGINES Page 14 For technical questions please call 1 888 866 5797 Item 60340 Fill the fuel tank in a well ventilated area Checking and Filling Fuel away from ignition sources If the engine is hot from use shut the engine off and wait AAWARNING TO PREVENT SERIOUS for it to cool before adding fuel INJURY FROM FIRE Do not smoke 1 Clean the Fuel Cap and the area around it 2 Unscrew and remove the Fuel Cap 3 If needed fill the Fuel Tank to about 1 inch under the fill neck of the Fuel Tank with 87 o
20. el 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 a Follow the Set Up Instructions in the equipment manual to prepare the equipment c Fill the engine with the proper amount and type of both fuel and oil d Read the Equipment Operation section in the equipment manual Item 60340 For technical questions please call 1 888 866 5797 Page 9 2 lt nc Lu ou Manual Start 1 To start a cold engine move the Choke to the CHOKE position To restart a warm engine leave the Choke in the RUN position 2 Open the Fuel Valve 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 U m 5 d ie 2 N OFF ON 4 Turn the Engine Switch on 5 Grip the Starter Handle of the Engine loosely and pull it slowly several times to allow the gasoline to flow into the Engine s carburetor Then pull the Starter Handle gently until resistance is felt Allow Cable to retract fully and then pull it quickly Repeat until the engine starts Note Do not let the Starter Handle snap back against the engine Hold it as it recoils so it doesn t hit the engine Page 10 For technical q
21. ine is hot from use shut the engine off and wait AA WARNING TO PREVENT SERIOUS NS INJURY FROM FIRE 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 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 Starting the Engine Before Starting the Engine Before starting the engine b Inspect the equipment and engine Full level Full level 4 Reinsert the Dipstick without threading it in and remove it to check the oil level The oil level should be up to the full level as shown above 5 Ifthe oil level is at or below the low mark 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 on page 15 in the Service section shows other viscosities to use in different average temperatures 6 Thread the dipstick back in clockwise NOTICE Do not run the engine with too little oil The engine will be permanently damaged Note Do not use gasoline containing more than 10 ethanol E10 Do not use E85 ethanol 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 Then replace the Fuel Cap 5 Wipe up any spilled fu
22. l 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 The emission control system for this Engine is warranted for standards set by the U S Environmental Protection Agency For warranty information refer to the last pages of this manual WARNING DO NOT INSTALL THIS ENGINE ON A VEHICLE NOT FOR HIGHWAY USE FOLLOW ALL APPLICABLE LAWS FOR INSTALLATION AND USE WARNING If you do not connect a battery to the positive battery cable wrap its terminal securely with electrical tape sold separately Battery Setup Instructions 1 Place a fully charged lead acid 12 volt 300 CCA 36 Ah battery not included in a stable flat location near the engine 2 Only use cables sized to match their length according to the following chart Attach the negative cable to the negative battery terminal Connect the negative cable securely to one of the engine mounting bolts as shown in the diagram below Connect cable securely to prevent disconnection and short circuits Cable Gauge lower gauge numbers mean thicker cables Maximum Cable Length AIM Connect Negative Battery C
23. le 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 5 Using an engine indoors CAN KILL YOU IN MINUTES lt 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 yor 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 gas 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 flame 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 the tool from rolling slipping and tilting Industrial applications must follow OSHA requirements 10 11 12 13 14 15 16 17
24. ll 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 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 Emission Control System Warranty United States Emission Control Defects Warranty Statement The United States Environmental Protection Agency herein EPA and Harbor Freight Tools herein HFT are pleased to explain the emission control system warranty on your 201
25. nd birth defects or other reproductive harm California Health amp Safety Code 25249 5 et seq 25 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 cap from the spark plug 2 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 3 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 4 Wear ANSI approved safety goggles heavy duty work gloves and dust mask respirator during service 5 Maintain labels and nameplates on the equipment These carry important information If unreadable or missing contact Harbor Freight Tools for a replacement 26 27 28 29 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 container Keep hands and feet away from moving parts Do not reach over or across equipment while operating SAFETY Before use check for misalignment or binding of moving parts breakage of parts and any other
26. nd 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 MAINTENANCE Page 17 gt 2 m gt 2 m Troubleshooting Possible Causes Probable Solutions FUEL RELATED Engine will not start FUEL RELATED No fuel in tank or fuel valve closed Choke not in CHOKE 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 9 Fill fuel tank and open fuel valve Move Choke to CHOKE position Clean out ethanol rich gasoline from fuel System Replace components damaged by ethanol Use fresh 87 octane unleaded gasoline only Do not use gasoline with more than 10 ethanol E15 E20 E85 etc Use fresh 87 octane 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
27. ngine 1 Tostop the engine in an emergency turn the Engine Switch off OPERATION 2 Under normal conditions use the following procedure a Slide the Throttle or Speed Control Lever to SLOW the turtle b Turn the Engine Switch off c Close the Fuel Valve Item 60340 For technical questions please call 1 888 866 5797 Page 13 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 cap 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 nee
28. olt 3 0 7 le ul 109 Spring Throttle Valve Returning 110 Rod Governor 111 Support Sub Governor 1 112 Nut 113 Governor Support 114 j Spring Governor 115 MotorAssy Staring 116 117 Relay Starting 118 Bot i 119 _ Switch Control 120 Bott Item 60340 RY g P i X Y N M afer LE mu I I LU N if gt ire t Yl AHE ES uieJ6eiq Ajquessy SONS S w a BN y lt gt 98 MAINTENANCE Item 60340 For technical questions please call 1 888 866 5797 Page 21 gt 2 m gt 2 m Mounting Hole Diagram Note Not to scale 7 72 196mm 0 Ul 90 F Power Take Off Diagram Note Not to scale 4x3 8 16 UNC 2B 8x5 16 24 UNF 28 93 625 in 192mm 96 5 in 1165 1 1 80 EE Gn 3 48 in 88 5mm a D E NI 1 i 95 75 in amp 4 1 in 20mm s 2211 1 56mm 95 in I x 2 84 in 72 2mm 427mm as 05 CN 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 DISTRIBUTO
29. rols Traps filters precipitators and any other device used to capture particulate emissions PREDATOR E N G NES 3491 Mission Oaks Blvd PO 6009 Camarillo CA 93011 1 888 866 5797 www harborfreight com
30. rrantable 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 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 emission related part on your engine is defective the part will be reasonable amount of time not to exceed 30 days repaired or replaced by HFT 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 MAINTENANCE Item 60340 For technical questions please call 1 888 866 5797 Page 23 Harbor Freight Tools Emission 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
31. s 30 acd 10W 30 Average outdoor temperature 8 Thread the dipstick back in clockwise CAUTION Do not run the engine with too little oil The engine will be permanently damaged MAINTENANCE Page 15 gt 2 m gt 2 m Air Filter Element Maintenance 1 Remove the air filter cover and the air filter elements and check for dirt Clean or replace as described below 2 Cleaning For paper filter elements To prevent injury from dust and debris wear ANSI approved safety goggles NIOSH approved dust mask respirator and heavy duty work gloves In a well ventilated area away from bystanders use pressurized air to blow dust out of the air filter If this does not get the filter clean replace it For foam filter elements Wash the element in warm water and mild detergent several times Rinse Squeeze out excess water and allow it to dry completely Soak the filter in lightweight oil briefly then squeeze out the excess oil 3 Install the new filter or the cleaned filter Secure the Air Cleaner Cover before use Page 16 S ark Plug Maintenance Disconnect spark plug cap from end of plug Clean out debris from around spark plug Using a spark plug wrench remove the spark plug Inspect the spark plug If the electrode is oily clean it using a clean dry rag If the electrode has deposits on it polish it using emery paper If the white insulator is cracke
32. tenance 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 maintenance 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 Air fuel ratio feedback and control system iii Cold start enrichment system iv Fuel Tank 2 Air Induction System i Controlled hot air intake system ii Intake manifold iii Air filter 3 Ignition System i Spark Plugs ii Magneto or electronic ignition system iii Spark advance retard system 4 Exhaust Gas Recirculation EGR System if so equipped i EGR valve body and carburetor spacer ii EGR rate feedback and control system 5 Air Injection System i Air pump or pulse valve ii Valves affecting distribution of flow iii Distribution manifold 6 Catalyst or Thermal Reactor System if so equipped i Catalytic converter ii Thermal reactor iii Exhaust manifold 7 Particulate Cont
33. the dust or fumes Stay alert watch what you are doing and use common sense when operating this piece of equipment Do not use this piece of equipment while tired or under the influence of drugs alcohol or medication Do not overreach Keep proper footing and balance at all times This enables better control of the equipment in unexpected situations Use this equipment with both hands only Using equipment with only one hand can easily result in loss of control 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 Item 60340 Operating Precautions cont 20 Parts especially exhaust system components get very hot during use Stay clear of hot parts 21 Do not cover the engine or equipment during operation 22 Keep the equipment engine and surrounding area clean at all times 23 Use the equipment accessories etc in 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 result in a hazardous situation 24 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 a
34. tual product may differ slightly from the product described herein Tools required for assembly and service may not be included Table of Contents Specifications 2 Maintenance nies eerte 14 Safety eit entered idem 3 18 CTU 6 Warranties 23 9 Parts List and 20 Specifications Displacement Engine Horizontal Single Cylinder 4 stroke OHV 9 EPA phase III compliant Cooling System Forced air cooled Fuel 87 octane unleaded gasoline Capacity 1 Gallon 10W 30 above 32 F 5W30 at 32 F or below with full tank Shaft Shaft Keyway End Tapped Type Gap ntake Valve Clearance Exhaust 0 15 0 20 mm 1 800 50 RPM PREDATOR ENGINES Page 2 For technical questions please call 1 888 866 5797 Item 60340 WARNING SYMBOLS AND DEFINITIONS This is the safety alert symbol It is used to alert 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
35. uestions please call 1 888 866 5797 Item 60340 6 Allow the Engine to run for several seconds Then if the Choke lever is in the CHOKE position move the Choke Lever very slowly to its RUN position Note Moving the Choke Lever too fast could stall the engine IMPORTANT Allow the engine to run at no load for five minutes with no load after each start up so that the engine can stabilize 7 Adjust the Throttle as needed 8 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 After this period Change the engine oil Under normal operating conditions subsequent maintenance follows the schedule explained in the MAINTENANCE AND SERVICING section Stopping the Engine 1 To stop the engine an emergency turn the Engine Switch off OPERATION 2 Under normal conditions use the following procedure a Slide the Throttle or Speed Control Lever to SLOW the turtle b Turn the Engine Switch off c Close the Fuel Valve Item 60340 For technical questions please call 1 888 866 5797 Page 11 Electric Start if equipped 1 To start a cold engine move the Choke to the CHOKE position To restart a warm engine lea
36. ve the Choke in the RUN position 2 Open the Fuel Valve 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 v m 5 d ie 2 4 M 4 Turn the Engine Switch to START OFF START 4 Page 12 For technical questions please call 1 888 866 5797 Item 60340 5 Allow the Engine to run for several seconds Then if the Choke lever is in the CHOKE position move the Choke Lever very slowly to its RUN position Note Moving the Choke Lever too fast could stall the engine IMPORTANT Allow the engine to run at no load for five minutes with no load after each start up so that the engine can stabilize 6 Adjust the Throttle as needed 7 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 After this period Change the engine oil Under normal operating conditions subsequent maintenance follows the schedule explained in the MAINTENANCE AND SERVICING section Stopping the E
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