Harbor Freight Tools 68122 User's Manual
Contents
1. SAE Viscosity Grade 20 0 20 40 60 80 100 F Average outdoor temperature Vertical Engine For technical questions please call 1 800 520 0882 Page 13 Spark Plug Maintenance 1 Disconnect spark plug cap from end of plug Clean out debris from around spark plug 2 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 cracked or chipped the spark plug needs to be replaced Recommended Spark Plugs DENSO W16EPR U W16EP U CHAMPION RN9YC4 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 5 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 about 1 2 2 3 turn more Non gasket style Finger tighten until the plug contacts the head then 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 Apply dielectric spark plug boot protector not included to the end of the spark plug and reattach the wire securely S2. for Model 68123 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 1997 and later Small Off Road Engine herein engine Within the United States new off road spark ignition engines certified for model year 1997 and later 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 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 warrantable condition exists HFT will repair your engine at no cost to you including diagnosis parts and labor California and United States Emission Control Defects Warranty Statement for Model 68122 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 emission control system warranty on your 1995 and later Small Off Road Engine herein engine In California the engine must be designed built and equipped to meet the State s stringent anti smog standards Elsewhere within the Unit
3. It can cause particles to enter the carburetor effecting 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 Starting the Engine Before Starting the Engine Before starting the engine A a Follow the Set Up Instructions in the equipment manual to prepare the equipment b Inspect the equipment and engine 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 Page 9 Starting Note Move the mower to a location that is flat level and free from loose objects such as rocks or sticks The mower may be difficult to start on grass 1 Press the Priming Bulb 2 3 times to prime the engine 2 Ifthe engine is cold adjust the Mower s choke control to the CHOKE START CLOSED position Note Location operation and design of the choke control will vary from manufacturer to manufacturer Adjust the control so that it pulls the choke cable to close the choke 3 Hold the mower s brake handle closed Page 10 For technical questions please call 1 800 520 0882 Vertical Engine 4 Grip the Starter Handle of the Engine loosely and pull it gently until resistance is felt Allow Cable to retract fully and then pull it quickly Repeat until the engine
4. engine OUTSIDE and far away from windows doors and vents WARNING marking concerning Risk of Fire while handling fuel Do not smoke while handling fuel WARNING marking concerning Risk of Fire Do not refuel while operating WARNING indicates a hazardous situation which if Keep flammable objects away from engine not avoided could result in death or serious injury WARNING Read all instructions Failure to follow all instructions listed below ACAUTION may result in fire serious injury and or DEATH CAUTION used with the safety alert symbol The warnings and precautions discussed in this indicates a hazardous situation which if not manual cannot cover all possible conditions and avoided could result in minor or moderate injury situations that may occur It must be understood NOTICE by the operator that common sense and caution are factors which cannot be built into this NOTICE is used to address practices not related to personal injury product but must be supplied by the operator CAUTION SAVE THESE INSTRUCTIONS CAUTION without the safety alert symbol is used to address practices not related to personal injury Vertical Engine For technical questions please call 1 800 520 0882 Page 3 Set up Precautions Operating Precautions Gasoline fuel and fumes are flammable and 1 CARBON MONOXIDE HAZARD potentially explosive Use proper fuel storage dax Using an engine indoors CAN KILL and handling procedure
5. 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 1 IMPORTANT If you have any doubts about your ability to perform the following procedures have a qualified service technician perform the installation Install this engine on a lawn mower only Set the Engine upright on the mower and align at least three 3 8 diameter coarse threaded engine mounting holes with mower mounting holes NOTE Depending on the mower it may be necessary to drill mounting holes or make a mounting plate to align with the engine mounting holes Only a qualified technician should attempt these solutions Page 8 For technical questions 4 Use 3 8 diameter coarse threaded hardened stainless steel Bolts Lock Washers and Washers not included of appropriate length to secure the Engine to the mower Make sure the hardware does not contact moving parts Insert the mower s brake cable sheath through the hole in the Brake bracket Secure the mower brake cable to the brake arm Adjust the brake cable sheath to remove all slack and secure it in place using the adjusting nuts on the cable sheath as shown in the illustration below THE ENGINE BRAKE IS FOR EMERGENCY SHUTOFF DO NOT REPLACE THE BRAKE SPRING WITH A WEAKER SPRING If operating the engine b
6. 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 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 THE ENGINE BRAKE IS FOR EMERGENCY SHUTOFF DO NOT REPLACE THE BRAKE SPRING WITH A WEAKER SPRING 7 Store equipment out of the reach of children 8 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 2 Do not refill the fuel tank while the engine is running or hot 3 Do not fill fuel tank to the top Leave a little room for the fuel to expand as needed 4 Refuel in a well ventilated area only 5 Wipe up any spilled fuel and allow excess to evaporate For technical questions please call 1 800 520 0882 before starting engine To prevent FIRE do not start the engine while the smel
7. of fuel hangs in the air 1 Remove the air filter cover and the air filter elements and check for dirt Clean or replace as described below Engine Oil Change 2 Cleaning ACAUTION Oil is very hot during operation and can e For paper filter elements cause burns Wait for engine to cool before changing oil To prevent injury from dust and debris wear ANSI 1 Make sure the engine is stopped 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 3 Tilt the engine over a suitable oil container far enough If this does not get the filter clean replace it to allow all the oil to drain out Recycle used oil 2 Clean the top of the Dipstick and the area around it Remove the Dipstick by threading it counterclockwise For foam filter elements Wipe off the dipstick with a clean lint free rag Wash the element in warm water and mild Add the appropriate type of oil until the oil level is at detergent several times Rinse Squeeze the full level SAE 10W 30 oil is recommended for out excess water and allow it to dry general use completely Soak the filter in lightweight oil The SAE Viscosity Grade chart shows other briefly then squeeze out the excess oil viscosities to use in different average temperatures 3 Install the new filter or the cleaned filter Secure the Air Cleaner Cover before use
8. 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 5 Allow the Engine to run for several seconds Then if the Mower s choke control is in the CHOKE START CLOSED position move the choke control very slowly to its RUN OPEN position NOTE Moving the Choke Lever too fast could stall the engine IMPORTANT Allow the engine to run at no load for a minute or two with no load after each start up so that the engine can stabilize 6 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 e Do not apply a heavy load to the equipment c The maintenance break in period will last about 20 hours of use After this period e Change the engine oil Under normal operating conditions subsequent maintenance follows the schedule explained in the MAINTENANCE AND SERVICING section Stopping the Engine To stop the engine release the brake handle Vertical Engine For technical questions please call 1 800 520 0882 Page 11 Service AWARNING TO PREVENT SERIOUS INJURY FROM ACCIDENTAL STARTING Release the brake handle 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 equipm
9. 50 Load 8 Sound Level 104 dB Bore x Stroke 70 mm x 45 mm Displacement Compression Ratio NGK BP 6ES BPR6ES DENSO W16EPR U W16EP U CHAMPION RN9YC4 Spark Plug NHSP F7TC E7RTC TORCH F7TC F7RTC e os Speed idle EE Page 2 For technical questions please call 1 800 520 0882 Vertical Engine 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 Safety Warnings In this manual on the labeling and all other information provided with this product 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 DANGER indicates a hazardous situation which if not avoided will result in death or serious injury AWARNING Symbol Definitions Symbol Property or Statement Revolutions Per Minute WARNING marking concerning Risk of Eye Injury Wear ANSI approved safety goggles with side shields Read the manual before set up and or use WARNING marking concerning Risk of Hearing Loss Wear hearing protection WARNING marking concerning Risk of Respiratory Injury Operate
10. 7 octane unleaded gasoline Do not exceed equipment s load rating Have qualified technician diagnose and service engine Fill fuel tank with fresh 87 octane unleaded gasoline Use cold weather fuel and oil additives to prevent backfiring Have qualified technician diagnose and service engine Check engine timing Follow all safety precautions whenever diagnosing or servicing the equipment or engine Page 16 For technical questions please call 1 800 520 0882 Vertical Engine Limited 1 Year 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 for a period of ninety days from date of purchase that the engine motor the belts if so equipped and the blades if so equipped are free of defects in materials and workmanship Harbor Freight Tools also warrants to the original purchaser for a period of one year from date of purchase that all other parts and components of the product are free from defects in materials and workmanship 90 days if used by a professional contractor or if used as rental equipment This warranty does not apply to the spark plug air filter and recoil starter This warranty does not apply to damage due directly or indirectly to misuse abuse negligence or accidents repairs or alterations outside our facilities normal wear and tear or to
11. 800 520 0882 Page 23 PREDATOR ENGINES 3491 Mission Oaks Blvd e PO Box 6009 Camarillo CA 93011 800 520 0882 www harborfreight com
12. PREDATOR ENGINES 173cc Vertical Engine 68122 68123 173cc Vertical 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 Only use OUTSIDE and far away from windows doors and vents NEVER use inside a home or garage EVEN IF doors and windows are open When unpacking make sure that the product is intact and undamaged If any parts are missing or broken please call 1 800 520 0882 as soon as possible Record Product s Serial Number Here See Serial Number Location on page 7 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 Visit our website at http www harborfreight com Copyright 2010 by Harbor Freight Tools All rights reserved No portion of this manual or any artwork contained herein may be reproduced in any shape or form without the express written consent of Harbor Freight Tools Diagrams within this manual may not be drawn proportionally Due to continuing improvements actual product may differ slightly from the product described herein Tools required for assembly and service may not be included Specifications Engine Type Cooling System 10W 30 above 32 F Engine Oil Ipa SRE 5W30 at 32 F or below Capacity 0 6 Quart Run Time
13. a chemical known to the State of California to cause cancer and birth defects or other reproductive harm California Health amp Safety Code 25249 5 et seq 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 Before use check for misalignment or binding of moving parts breakage of parts and any other 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 Follow equipment manufacturer s operation precautions Page 5 Service Precautions 1 Page 6 Before service maintenance or cleaning a Release the brake handle stopping the engine b Allow the engine to completely cool c Then remove the spark plug cap from the spark plug 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
14. by threading it counterclockwise and wipe it off with a clean lint free rag 3 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 the top of the crosshatched area on the dipstick as shown above 4 If the oil level is below the full level add the appropriate type of oil until the oil level is at the correct level SAE 10W 30 oil is recommended for general use The SAE Viscosity Grade chart on page 13 in the Service section shows other viscosities to use in different average temperatures 5 Thread the Dipstick back in clockwise CAUTION Do not run the engine with too little oil The engine will be permanently damaged Vertical Engine For technical questions please call 1 800 520 0882 Checking and Filling Fuel AAWARNING TO PREVENT SERIOUS INJURY FROM FIRE N 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 Clean the Fuel Cap and the area around it before adding fuel Do not smoke 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 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 in a metal fuel container or a dirty fuel container
15. der 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 For technical questions please call 1 800 520 0882 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 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 t
16. e ___ Bolt Valve Adjusting Valve Intake Plate Asm Lifter Stopper Lifter Valve CamshaftAsm Valve Exhaust Starter Asm Recoil 1 Housing Engine Shroud S Nut Stud o y od S Plate Carburetor Insulator Gasket Carburetor 2 Gasket Carburetor Insulator Carburetor Asm 1 Gasket Air Cleaner Priming Bulb Gasket Air Cleaner Gud Gasket Insulator Plate 1 Nut tud tud Tube Breather i 9 Case AirCleaner_ Element Asm Air Ceaner Cover Air Cleaner Case Cover Muffler Outer Muffler Asm o Gasket Exhaust Outlet Bolt ooo O Tappet Valve 2 1 1 1 1 Part 55 56 57 58 59 61 62 63 64 65 67 70 1 2 3 4 75 76 77 8 81 82 83 84 85 Bolt 87 Bott 88_ StrainerFuel 89 Clamp 90 Tube Fuel LI 91 Clamp 92 Bot IL 2 93 TankAsm Fuel 1 94 Nut Flywheel LI 95 FlywheelAsm 1 96 Bot 1 97 Coil Ignition 1 BrakeAsm CL Bolt C iLCS to Bot ANE Rod Governor LI Spring Throttle Valve Returning __1 Control Asm Throttle 1 w o ech 104 Bott S Support Asm Governor 4 1 1 1 106 Bot Governor Support 1 Nut 1 1 z 100 101 102 103 05 06 107 Nut 108 _ Spring Governor 109 Clip S Vertical Engine 68123 Parts List and Diagram ef pe S WOS Vertical Engine For technical questions please call 1
17. ed States new off road spark ignition engines certified for model year 1997 and later must meet similar 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 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 warrantable condition exists HFT will repair your engine at no cost to you including diagnosis parts and labor Manufacturer s Warranty Coverage The 1995 and later engines are warranted for two 2 years If any emission related part on your engine is defective the part will be repaired or replaced by HFT 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 s 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 o
18. ent 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 Maintenance Procedures 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 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 2 hr z use Ee gt use Brush offoutsideofengne lt 7 7 eae OAR oe BE Checkaircleaner CM TE OE a d r yi i Checkdepositcup S OM S S a d a yi i TI Check and clean spark plug 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 rn a i Service more frequently when u
19. he 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 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 plug 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 CALL SERVICE FOR ENGINE ISSUES AT 800 520 0882 M F 8 5 CST Vertical Engine ef d PE VW e i e amp m 2 ba fey E 5 Page 20 68122 Parts List and Diagram Part Description Ton 1 Joer CylinderHead CT 2 Gasket Cylinder Head Cover 1 3 HeadAsm Cylinder Cl 4 Gasket Cyli
20. ist and Diagram Page 22 Part Description Ton 1 Cover CylinderHead 1 2 Gasket Cylinder Head Cover 1 3 HeadAsm Cylinder II 4 Gasket CylinderHead_ 1 5 Bot 6 Plug Spark 1 7 Bolt CylinderHead_ 4 8 Bracket MufflerShield 1 9 Bot i y 10 Std 2 RE Pin y DC 12 CrankcaseAsm 1 13 Shield Crankcase de 1 14 DipstickAsm Ol 1 15 Bolt TH 416 Bot SEI 17 Bracket Fuel Tank Right 1 18 Sea Oi d 1 19 Bot i 20 Bot 2 21 Plate Breath Groove Cover 1 22 Gasket Breath Groove 1 23 Piece Breath _ 1 24 Strainer Breath Groove 1 25__ Shield Crankcase Best 1 26 Bearing 27 Bracket Fuel Tank Lett 1 28 Bolt gt 29 Arm Governor 30 Washer __ _ J 1 31 Seal Oil dt p82 Pin 33 Gasket Crankcase En ejej 35 Washer 36 Block Returning Oil 1 Bolt ooo d Compression Seal Oil Bob Gear Asm Governor Cover Crankcase _ Ping The First Ring The Second i Ring Set Oil E H 5 37 38 1 39 1 40 D 2 Piston Clip Piston Pin Pin Piston S Rod Connecting CrankshaftAsm Nut Valve Lock ___ __ Nut Valve Adjusting Seat Valve Spring Rocker Valve _ _ _ 2 Je 1 1 1 1 1 2 1 2 2 2 41 42 43 44 45 46 47 48 49 50 51 52 53 54 For technical questions please call 1 800 520 0882 Description _ Spring Valve Guide S
21. l of fuel hangs in the air SAVE THESE INSTRUCTIONS Vertical Engine Engine Components Page 7 INE d MN y V ANA ADYE d V a D j AD ei i X J OG A L e SS J a Si MNS BL AT ket Se ST ANY W NAR Eege Location Write on front cover of manual For technical questions please call 1 800 520 0882 NW 1 Soit api AS Sei Vertical Engine Model 68123 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 Models 68122 The emission control system for this Generator s 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 Read the ENTIRE IMPORTANT SAFETY A 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 At high altitudes the engine s carburetor
22. 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 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 3491 Mission Oaks Blvd PO Box 6009 Camarillo CA 93011 Vertical Engine For technical questions please call 1 800 520 0882 Emission Control System Warranty United States Emission Control Defects Warranty Statement
23. le Causes Probable Solutions Engine misfires Engine stops suddenly Engine stops when under heavy load Engine knocks Engine backfires Spark plug cap loose Incorrect spark plug gap or damaged spark plug Defective spark plug cap 4 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 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 Check wire connections Re gap or replace spark plug Replace spark plug cap 4 Use only fresh 87 octane unleaded gasoline 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 Test replace fuel tank cap 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 8
24. nd pull the start handle several times to air out the chamber Reinstall spark plug and set Choke to CHOKE START CLOSED position IGNITION SPARK RELATED 1 Spark plug cap not connected securely Spark plug electrode wet or dirty Incorrect spark plug gap Spark plug cap broken Incorrect spark timing or faulty ignition system IGNITION SPARK RELATED 1 Clean spark plug Correct spark plug gap Replace spark plug cap Have qualified technician diagnose Connect spark plug cap properly repair ignition system COMPRESSION RELATED 1 Cylinder not lubricated Problem after long storage periods Loose or broken spark plug 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 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 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 Vertical Engine For technical questions please call 1 800 520 0882 Page 15 Possib
25. nder Head _ __ 1 Al Al Al A Bolt Cylinder Head Bracket Muffler Shield SIS ole gjo Sl r Stud Bot o Bracket Fuel Tank Right Seal Oil D Q D o Bok EEGEN 2 Shield Crankcase Rear 26 Bearing Bearing Bracket Fuel Tank Left SIS Seal Oil D o 7 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 5 D o Bracket Fuel Tank Lower Bolt S Gasket Crankcase 36 Block Returning Oil Bolt S Plate Governor Spindle Compression D o 27 28 29 30 31 32 33 34 35 D o Seal Oil Bolt o D o Ring 52 CrankshaftAsm J 1 53 Nut ValveLock _ __ _ 2 54 Nut_Valve Adjusting 2 55 Seat Valve Spring 2 56 Rocker Valve _ _ 2 57 Spring Valve 2 58 Guide Sea CT 59 Bolt Valve Adjusting 2 60 Valve Intake Ir 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 gt N gt IN NININ N For technical questions please call 1 800 520 0882 Part ___ Description Ton 61 Plate Asm Lifter Stopper 1 67 70 71 72 73 74 75 76 77 78 79 81 82 83 84 85 87 88 91 92 93 94 95 97 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 Vertical Engine 68122 Parts List and Diagram Vertical Engine For technical questions please call 1 800 520 0882 Page 21 68123 Parts L
26. r for your failure to ensure the performance of all scheduled maintenance s 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 Page 17 e 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 1 800 444 3353 Harbor Freight Tools Emission Control Defects Warranty Provisions 1 Page 18 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 1 800 444 3353 Consequential Damages Coverage Coverage un
27. rake is too difficult a qualified technician must install a different brake handle on the mower Note The brake cable on some mowers may need to be adjusted in a different manner Install according to mower manufacturer s instructions 6 Attach the end of the mower s Choke Cable to the Choke Use the Bracket and Bolt to secure its sheath in place as shown above 7 This engine is set to a single speed that should not be adjusted 8 Refer to the mower s service manual for instructions on how to properly attach a belt drive pulley chain drive gear etc onto the output shaft of the Engine please call 1 800 520 0882 Vertical Engine INFORMATION section at the beginning Pre Start Checks not use equipment until fixed properly each use Before each use check the oil level of this manual including all text Inspect engine and equipment looking for Checking and Filling Engine Oil Do not run the engine with low or no engine under subheadings therein before damaged loose and missing parts before set CAUTION Your Warranty is VOID if the engine s oil Running the engine with no or low engine U Read the ENTIRE IMPORTANT SAFETY set up or use of this product up and starting If any problems are found do crankcase is not properly filled with oil before oil WILL permanently damage the engine 1 Make sure the engine is stopped and is level 2 Clean the top of the Dipstick and the area around it Remove the Dipstick
28. red engines may ignite 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 Parts especially exhaust system components get very hot during use Stay clear of hot parts Do not cover the engine or equipment during operation 22 23 24 25 26 27 28 29 30 For technical questions please call 1 800 520 0882 Keep the equipment engine and surrounding area clean at all times 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 Do not operate the equipment with known leaks in the engine s fuel system This product contains or when used produces
29. rom ignition sources such as water heaters clothes dryers and furnaces AFTER STORAGE Before starting the engine 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 properly Vertical Engine Troubleshooting Possible Causes Probable Solutions MOWER ENGINE SPECIFIC Engine will not start MOWER ENGINE SPECIFIC 1 Brake Handle not held or brake cable not connected properly 2 Mower on top of grass FUEL RELATED 1 No fuel in tank 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 1 Make sure brake handle is held down and brake cable is properly adjusted 2 Start mower atop clear area free of loose objects and grass FUEL RELATED 1 Use fresh 87 octane unleaded gasoline Press priming bulb before starting cold engine Clean out passageways using fuel additive Fill fuel tank Heavy deposits may require further cleaning Gently tap side of carburetor float chamber with screwdriver handle Turn Choke to RUN OPEN position Remove spark plug a
30. s Do not store fuel YOU IN MINUTES or other flammable materials nearby bh Engine exhaust contains carbon monoxide This is a poison you cannot see or smell 1 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 Set up and use only on a flat level well ventilated surface Wear ANSI approved safety goggles heavy duty NEVER use inside a home or garage EVEN IF doors work gloves and dust mask respirator during set up and windows are open Use only lubricants and fuel recommended in ANS the Specifications chart of this manual Only use OUTSIDE and far away from windows doors and vents 2 Keep children away from the equipment especially while it is operating 3 Keep all spectators at least six feet from the Engine during operation 4 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 5 Do not touch engine during use Let engine cool down after use 6 Never store fuel or other flammable materials near the engine 7 Only use a suitable means of transport and lifting devices with sufficient weight bearing capacity when transpor
31. sed in dusty areas These items should be serviced by a qualified technician Page 12 For technical questions please call 1 800 520 0882 Vertical Engine 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 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 Note Do not use gasoline containing more than 6 Reinsert the Dipstick without threading it in and 10 ethanol E10 Do not use E85 ethanol remove it to check the oil level The oil level should be up to the full level the top of the crosshatched Note Do not use gasoline that has been stored in area on the dipstick as cnampabave a metal fuel container or a dirty fuel container It can cause particles to enter the carburetor effecting 7 Thread the dipstick back in clockwise engine performance and or causing damage CAUTION Do not run the engine with too little 4 Then replace the Fuel Cap oil The engine will be permanently damaged 5 Wipe up any spilled fuel and allow excess to evaporate before starting engine To prevent FIRE do not start Air Filter Element Maintenance the engine while the smell
32. ting the Engine 8 Secure the Engine on transport vehicles to prevent the tool from rolling slipping and tilting 9 Industrial applications must follow OSHA requirements 10 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 11 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 12 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 Page 4 For technical questions please call 1 800 520 0882 Vertical Engine 13 14 15 16 17 18 19 20 21 Vertical Engine 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 powe
33. torage 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 Page 14 For technical questions please call 1 800 520 0882 rust damage Apply a thin coat of rust preventive oil to all metal parts 2 FUEL Awarninc TO PREVENT SERIOUS INJURY FROM FIRE Drain 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 draining fuel Do not smoke a Place a funnel leading to a proper gasoline container below the carburetor b Remove the drain bolt from the bottom of the carburetor bowl and allow the fuel to drain c After all fuel has drained reinstall the drain bolt 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 STORAGE AREA Cover and store in a dry level well ventilated area out of reach of children Storage area should also be away f
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