Harbor Freight Tools (173cc) Product manual
Contents
1. For technical questions please call 1 888 866 5797 Page 19 Item 69731 Mounting Hole Diagram Note Not to scale 3 27 in 83mm PREDATOR ENGINES 3491 Mission Oaks Blvd PO Box 6009 Camarillo CA 93011 1 888 866 5797 www harborfreight com2. improvements actual product may differ slightly from the product described herein Tools required for assembly and service may not be included Table of Contents Specifi Cations wi viet ciecertatde teea 2 Maintenance rasiaan aa teenth 12 Safely noriai oh a n i 3 Warranties ices eric inne 17 0 D e POE T E iain 7 Parts Lists and Diagrams cee 18 9 Specifications Engine Woe Vertical Single Cylinder 4 stroke OHV gine yp EPA phase III and CARB compliant Cooling System Forced air cooled Type 87 octane stabilizer treated Fuel unleaded gasoline Capacity 0 3 gallon 1 1 liter 10W 30 above 32 F Engine Oil TPS ene 5W30 at 32 F or below Capacity 0 6 Quart Run Time 50 Load with full tank WEE 70mm x45 mm 173cc 8 5 Rotation viewed from PTO f 8 203mm 3 8 24 UNF tapped hole Mounting Base Pattern 2 x 8 7mm through hole Shaft dia 7 8 x 3 16 Shaft 3 16 4 76 mm End Tapped 3 8 24 NGK BP 6ES BPR6ES DENSO W16EPR U W16EP U Type CHAMPION RN9YC4 Spark Plug NHSP F7TC E7RTC TORCH F7TC F7RTC 0 7 0 8 mm Valve Clearance en 0 15 0 20 mm Speed flde 1 800 50 RPM 40 minutes Page 2 For technical questions please call 1 888 866 5797 Item 69731 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
3. 2 Using a spark plug wrench remove the spark plug Page 13 MAINTENANCE gt 2 m gt Z O m 3 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 BP SESIRPROES NHSP TORCH F7TC F7RTC DENSO W16EPR U W16EP U CHAMPION 4 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 Specifications chart Do not pry against the electrode the spark plug can be damaged Storage 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 When the equipment is to remain idle for onger than 20 c After all fuel has drained reinstall the days prepare the Engine for storage as follows 1 CLEAN
4. Engine valves or tappets mis adjusted or stuck Spark plug cap loose Incorrect spark plug gap or damaged spark plug Defective spark plug cap Old or low quality gasoline Incorrect compression For technical questions please call 1 888 866 5797 COMPRESSION RELATED 1 4 Use only fresh 87 octane stabilizer treated unleaded gasoline Do not use gasoline with more than 10 ethanol E15 E20 E85 etc Re gap or replace spark plug Replace spark plug cap Diagnose and repair compression 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 Check wire connections Use Engine will not start COMPRESSION RELATED section MAINTENANCE Page 15 gt 2 m gt Z O m Possible Causes Probable Solutions Engine stops 1 Low oil shutdown 1 Fill engine oil to proper level suddenly Check engine oil before EVERY use Fuel tank empty or full of impure or low Fill fuel tank with fresh 87 octane stabilizer quality gasoline treated unleaded gasoline Do not use gasoline with more than 10 ethanol E15 E20 E85 etc Defective fuel tank cap cre
5. 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 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 6 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
6. 888 866 5797 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 2 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 Item 69731 For technical questions please call 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 bu
7. 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 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 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 intende
8. IMPORTANT Allow the engine to run at no load for a minute or two 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 OPERATION Stopping the Engine To stop the engine release the brake handle Item 69731 For technical questions please call 1 888 866 5797 Page 11 Maintenance 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 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 a
9. 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 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 14 16 17 20 21 22 23 24 For technical questions please call 1 888 866 5797 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
10. cap broken Incorrect spark timing or Spark plug cap not connected securely faulty ignition system 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 Fill fuel tank with fresh 87 octane stabilizer treated unleaded gasoline and open fuel valve 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 Press priming bulb before starting cold engine 4 Clean out passageways using fuel additive Heavy deposits may require further cleaning Gently tap side of carburetor float chamber with screwdriver handle Turn Throttle to full position Remove spark plug and pull the start handle several times to air out the chamber Reinstall spark plug and attempt to restart IGNITION SPARK RELATED 1 Connect spark plug cap properly 2 Clean spark plug Correct spark plug gap Replace spark plug cap Have qualified technician diagnose 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
11. 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 Indicates a hazardous situation which if not avoided ACAUTION could result in minor or moderate injury NOTICE CAUTION Safety Warnings Symbol Definitions Addresses practices not related to personal injury WARNING marking concerning Risk of Respiratory Injury Operate engine OUTSIDE and far away from windows doors and vents WARNING marking concerning WARNING marking concerning Risk Risk of Fire while handling fuel of Eye Injury Wear ANSI approved Do not smoke while handling fuel safety goggles with side shields WARNING marking concerning Risk of Fire Do not refuel while operating Keep flammable objects away from engine Read the manual before set up and or use WARNING marking concerning Risk of Hearing Loss Wear hearing protection 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 Set up Precautions 1 Gas
12. for general use The SAE Viscosity Grade chart shows other viscosities to use in different average temperatures SAE Viscosity Grade Average outdoor temperature Item 69731 For technical questions please call 1 888 866 5797 Full level 6 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 7 Thread the dipstick back in clockwise CAUTION Do not run the engine with too little oil The engine will be permanently damaged Air Filter Element Maintenance 1 Remove the air filter cover and the air filter elements and check for dirt Clean 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 e 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 cleaned filter Secure the Air Cleaner Cover before use Spark Plug Maintenance 1 Disconnect spark plug cap from end of plug Clean out debris from around spark plug
13. AWARNING 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 with 87 octane or higher unleaded gasoline that has been treated with a fuel stabilizer additive Follow fuel stabilizer manufacturer s recommendations for use 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 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 Engine Oil Change AcaAuTION 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 2 Clean the top of the Dipstick and the area around it Remove the Dipstick by threading it counterclockwise 3 Tilt the engine over a suitable oil container far enough to allow all the oil to drain out Recycle used oil 4 Wipe off the dipstick with a clean lint free rag Add the appropriate type of oil until the oil level is at the full level SAE 10W 30 oil is recommended
14. Bracket Throttle Cable Bracket 7 Attach the end of the mower s Throttle Cable to the Throttle Control Use the Bracket and Bolt to secure its sheath in place as shown above 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 For technical questions please call 1 888 866 5797 Item 69731 Operation 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 Checking and Filling Fuel CAUTION Your Warranty is VOID if the engine s Awarninc TO PREVENT SERIOUS crankcase is not properly filled with oil before SS INJURY FROM FIRE each use Before each use check the oil level Fill the fuel tank in a well ventilated area Do not run the engine with low or no engine oil Ss away from ignition sources If the engine is Running the engine with no or low engine oil hot from use shut the engine off and wait WILL permanently damage the engine for it to cool before adding fuel 1 Make sure the engine is stopped and is level Do not smoke 2 Clean the top of the Dipstick and the 1 Cle
15. 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 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 5 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 Item 69731 Troubleshooting Possible Causes Probable Solutions MOWER ENGINE SPECIFIC Engine will not start Engine misfires Follow all safety precautions whenever diagnosing or servicing the equipment or engine Item 69731 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 IGNITION SPARK RELATED 1 Spark plug electrode wet or dirty Incorrect spark plug gap Spark plug
16. ING 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 Checking and Filling Fuel chart on page 9 AAWARNING 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 a Place a funnel leading to a proper gasoline container below the carburetor Drain Plug b Remove the drain bolt from the bottom of the carburetor bowl and allow the fuel to drain Page 14 For technical questions please call 1 888 866 5797 drain bolt Tighten securely 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 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 STORAGE AREA
17. L PRODUCT OR REPLACEMENT PARTS THERETO OR ARISING OUT OF HIS OR HER INSTALLATION OF REPLACEMENT PARTS THERETO Parts List Part Qty 6 Plug Spark 1 8 Bracket Muffler Shield Part Description _ Qty Part Description Gasket Carb Insulator 40 Bot 44 Qty Nut 80_ 0 ey o 89 tt 90 Clamp 1 96 Coil Ignition 1 98 Bolt tC 99 1 Nut Case Air Cleaner 46 Ai Clip Piston Pin Crankcase Sub Shield Crankcase Side Dipstick Sub Oil Bot Cd Bot Bracket Fuel Tank Righ Seal Oil Bot Cd Bot Cd Plate Breather Cover Gasket Breather Rod Connecting Crankshaft Asm 2__ Nut Valve Adjusting 4 Rocker Valve t Bolt i 3 5 7 i 8_ Pin 9 0 1 Valve Lock 3 5 Spri 7 Bolt 8 9 i r 1 Tappet Vave i i e Shroud sd Nuts Stud sd Stud 0 Gasket Insulator Plat Plate Carb Insulator 72 Gasket Carburetor 3 1 1 1 i i 6 Guide Seal_ 1 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 Page 18 For technical questions please call 1 888 866 5797 Item 69731 Assembly Diagram
18. 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 ENGINES REV 15a 173cc Vertical Engine Using an engine indoors CAN KILL YOU IN MINUTES Engine exhaust contains carbon monoxide This is a poison you cannot see or smell gt 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 69731 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 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 MANUAL
19. 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 69731 For technical questions please call 1 888 866 5797 Page 5 SAFETY Engine Components 4 Sp DAN S V TANN 4 Jp eI 2 CG t Uy l MISS 3 Serial Number Location Write on front cover of manual SAFETY Item 69731 For technical questions please call 1 888 866 5797 Page 6 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 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 WARNING DO NOT INSTALL THIS ENGINE ON A VEHICLE NOT FOR HIGHWAY USE FOLLOW ALL APPLICABLE LAWS FOR INSTALLATION AND USE Hi
20. an the Fuel Cap and the area around it area around it Remove the Dipstick 2 Unscrew and remove the Fuel Cap 3 If needed fill the Fuel Tank to about 1 inch wipe it off with a clean lint free rag under the fill neck with 87 octane or higher unleaded gasoline that has been treated with a fuel stabilizer additive Follow fuel stabilizer manufacturer s recommendations for use 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 effecting engine performance and or causing damage Fulllevel 4 Then replace the Fuel Cap 5 Wipe up any spilled fuel and allow excess to evaporate before starting engine To 3 Reinsert the Dipstick without threading it in and prevent FIRE do not start the engine while remove it to check the oil level The oil level the smell of fuel hangs in the air should be up to the full level the top of the crosshatched area on the dipstick as shown above Z 2 lt o Lu ou O 4 Ifthe 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 Maintenance section shows other viscosities to use in different average temperatures 5 Thread the Dipstick back i
21. ating Test replace fuel tank cap vacuum preventing proper fuel flow Faulty magneto Have qualified technician service magneto Disconnected or improperly Secure spark plug cap connected spark plug cap Engine stops when Dirty air filter Clean or replace element under heavy load Engine running cold Allow engine to warm up prior to operating equipment Engine knocks Old or low quality gasoline Fill fuel tank with fresh 87 octane stabilizer treated unleaded gasoline Do not use gasoline with more than 10 ethanol E15 E20 E85 etc Engine overloaded Do not exceed equipment s load rating Incorrect spark timing deposit buildup worn 3 Have qualified technician diagnose engine or other mechanical problems and service engine Engine backfires Impure or low quality gasoline Fill fuel tank with fresh 87 octane stabilizer treated unleaded gasoline Do not use gasoline with more than 10 ethanol E15 E20 E85 etc Engine too cold Use cold weather fuel and oil additives to prevent backfiring Intake valve stuck or overheated engine Have qualified technician diagnose and service engine Incorrect timing 4 Check engine timing Follow all safety precautions whenever diagnosing or servicing the equipment or engine Limited 90 Day Warranty Harbor Freight Tools Co makes every effort to assure that its products meet high quality and durability standards and warrants
22. bility 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 o hr 52 use ea 5 use 006600096 vt anaes ee ee Check aircleaner CY TC CU y TTEA ae Clean replace air cleaner ee Ore ss Fa 5 Check and clean spark plug ee ee ees Fe ee ae 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 e Service more frequently when used in dusty areas These items should be serviced by a qualified technician gt 2 m gt Z O m Page 12 For technical questions please call 1 888 866 5797 Item 69731 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 3 A
23. d could result in a hazardous situation Do not operate the equipment with known leaks in the engine s fuel system Item 69731 25 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 25249 5 et seq 26 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 27 Keep hands and feet away from moving parts Do not reach over or across equipment while operating Service Precautions 1 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 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 th
24. e equipment These carry important information If unreadable or missing contact Harbor Freight Tools for a replacement 28 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 29 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 30 Follow equipment manufacturer s operation precautions 6 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 Refuel in
25. gh Altitude Operation Above 3000 feet AAWARNING TO PREVENT SERIOUS INJURY FROM Note The Fuel Cup Seal and Bolt Seal may ou FIRE be damaged during removal and should be gt Follow instructions in a well ventilated area away from replaced with the new ones from the kit ignition sources If the engine is hot from use shut the engine off and wait for it to cool before proceeding Do not smoke 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 At high altitudes the engine s carburetor governor 8 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 NOTICE Warranty vo
26. id if necessary adjustments are not made for high altitude use 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 Fuel Cup Seal Mixing Tube might remain inside carburetor 1 Turn off the engine Main Jet 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 n Seal 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 Bolt A carburetor screwdriver not included is High Altitude Kit Parts List A needed to remove and install the Main Jet Part Description Qty Note The mixing tube is held in place by Main Jet 3000 6000 ft the Main Jet and might fall out when it is Main Jet 6000 8000 ft removed If it falls out replace it in the same Bolt Seal orientation before replacing the Main Jet Fuel Cup Seal 6 Replace the Main Jet with the replacement Main Jet needed for your altitude range part 1a or 2a Item 69731 For technical questions please call 1 888 866 5797 Page 7 Installation 1 IMPORTANT If you have any doubts about your ability to perform the following procedures have a qualified service technician perform the installati
27. ing the product This warranty gives you specific legal rights and you may also have other rights which vary from state to state Page 16 For technical questions please call 1 888 866 5797 Item 69731 Emission Control System Warranty California and United States Emission 3 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 4 emission control system warranty on your 2014 2015 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 United States new off road spark ignition engines certified for model year 2014 2015 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 2014 2015 engines are warranted for two
28. n clockwise CAUTION Do not run the engine with too little oil The engine will be permanently damaged Item 69731 For technical questions please call 1 888 866 5797 Page 9 Starting the Engine Before Starting the Engine a Follow the Set Up Instructions in the equipment A 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 e 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 Adjust the Mower s Throttle control to full throttle Note Location operation and design of the Throttle control will vary from manufacturer to manufacturer e m 5 e zZ 3 Hold the mower s brake handle closed Page 10 For technical questions please call 1 888 866 5797 Item 69731 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 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 the Mower s Throttle control can be adjusted as desired for operation
29. oline fuel and fumes are flammable and 4 Setup and use only on a flat level potentially explosive Use proper fuel storage well ventilated surface and handling procedures Do not store fuel 5 Wear ANS approved safety goggles heavy duty or other flammable materials nearby work gloves and dust mask respirator during set up Have multiple ABC class fire extinguishers nearby 6 Use only lubricants and fuel recommended Operation of this equipment may create sparks in the Specifications chart of this manual 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 Item 69731 For technical questions please call 1 888 866 5797 Page 3 SAFETY wn gt m lt Operating Precautions Page 4 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 NEVER use inside a home or garage EVEN IF doors and windows are open woo 6 s 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
30. olled 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 Controls Traps filters precipitators and any other device used to capture particulate emissions MAINTENANCE Page 17 gt 2 m gt Z 0 m Parts Lists and Diagrams 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 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 ORIGINA
31. on Install this engine on a lawn mower only Do not use to power a vehicle Mounting hole locations a one 3 8 in x 24 threaded 1 in deep b two 60 34 in 8 7mm unthreaded use 5 16 in 8mm diameter hardware Set the Engine upright on the mower and align at least three 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 5 Page 8 Use hardened stainless steel Bolts Lock Washers and Washers not included of appropriate length and diameter to secure the Engine to the mower Make sure the hardware will not contact moving parts during operation 6 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 brake 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 Throttle Control
32. t 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 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 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 Contr
33. 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 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 return
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