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Powerhorse 750122, Owner'S Manual

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Powerhorse 750122 Owner'S Manual Download Page 1

SAVE THESE INSTRUCTIONS 

 
 

 

 

420cc OHV Horizontal Gas Engine 

 

 

Owner’s Manual 

 

 

 

WARNING:

 Read carefully and understand all ASSEMBLY AND OPERATION 

INSTRUCTIONS before operating. Failure to follow the safety rules and other basic safety 
precautions may result in serious personal injury. 

 

 

Item #750122 

 

Summary of Contents for 750122

Page 1: ...l Gas Engine Owner s Manual WARNING Read carefully and understand all ASSEMBLY AND OPERATION INSTRUCTIONS before operating Failure to follow the safety rules and other basic safety precautions may res...

Page 2: ...rtant that you read the entire manual to become familiar with this product before you begin using it This engine is designed for certain applications only Northern Tool Equipment is not responsible fo...

Page 3: ...Important Safety Information 4 Specific Operation Warnings 6 Safety Labels 8 Main Engine Parts 9 Before Each Use 10 Operating Instructions 11 Maintenance 16 Troubleshooting 25 Storage 25 Parts Diagram...

Page 4: ...ed might result in minor or moderate injury CAUTION when used without the alert symbol indicates a situation that could result in damage to the engine This manual contains safety information to make y...

Page 5: ...way from moving parts Loose clothes jewelry or long hair can be caught in moving parts Air vents on the tool often cover moving parts and should be avoided Wear the proper personal protective equipmen...

Page 6: ...spark plug muffler fuel filler cap and air cleaner are in place Do not crank the engine with the spark plug removed If fuel spills wait until it evaporates before starting the engine If the engine flo...

Page 7: ...othing dangling drawstrings or items that could become caught WARNING Engines give off carbon monoxide an odorless colorless poison gas Breathing carbon monoxide can cause nausea fainting or death Sta...

Page 8: ...Page 8 of 35 Safety Labels...

Page 9: ...ne Parts Reference Subassembly A Air Cleaner B Muffler C Spark Plug D Throttle Lever E Recoil Starter F Starting Handle G Fuel Shut off H Choke Lever I Fuel Filler Cap J Fuel Tank K Oil Dipstick L Dra...

Page 10: ...the engine for signs of oil or gasoline leaks 2 Remove any excessive dirt or debris especially around the muffler and recoil starter 3 Look for signs of damage 4 Check that all shields and covers are...

Page 11: ...on and emissions To remain emissions compliant and improve engine performance at higher altitudes a high altitude kit is required A high altitude kit includes a carburetor jet resized to help correct...

Page 12: ...he choke lever to the CHOKE position To restart a warm engine leave the choke lever in the RUN position 3 Move the throttle lever away from the MIN position about 1 3 of the way toward the MAX positio...

Page 13: ...eturn the starter grip gently WARNING Do not allow the starter grip to snap back against the engine Return it gently to prevent damage to the starter Electric Starter Turn the key to the START positio...

Page 14: ...r motor and can damage it 6 If the choke lever has been moved to the CHOKE position to start the engine gradually move it to the RUN position as the engine warms up Stopping the Engine To stop the eng...

Page 15: ...lever to the MIN position Some engine applications use a remote mounted throttle control rather than the engine mounted throttle lever shown here 2 Turn the engine switch to the OFF position 3 Turn th...

Page 16: ...iginal equipment replacement parts Other parts may not perform as well may damage the unit and may result in injury In addition use of other parts may void your warranty We recommend that you use an a...

Page 17: ...ean 1 1 Replace Sediment Cup Clean Spark Plug Check adjust Replace Spark Arrester Clean Idle Speed Check adjust 2 Valve Clearance Check adjust 2 Combustion Chamber Clean After every 500 Hrs 2 Fuel Tan...

Page 18: ...the letters SJ or later or equivalent SAE 10W 30 is recommended for general use Other viscosities shown in the chart may be used when the average temperature in your area is within the indicated rang...

Page 19: ...fied to operate on unleaded gasoline with a pump octane rating of 86 or higher a research octane rating of 91 or higher Refuel in a well ventilated area with the engine stopped If the engine has been...

Page 20: ...uction 1 With the engine stopped and on a level surface remove the fuel filler cap and check the fuel level Refill the tank if the fuel level is low 2 Add fuel to the bottom of the maximum fuel level...

Page 21: ...park plug electrode gap with a wire type feeler gauge Correct the gap if necessary by carefully bending the side electrode The gap should be 0 7 0 8 mm 0 028 0 031 in 5 Install the spark plug carefull...

Page 22: ...handling fuel Stop engine and keep heat sparks and flame away Handle fuel only outdoors Wipe up spills immediately 1 Move the fuel shut off to the OFF position then remove the sediment cup and O ring...

Page 23: ...damage the filter and solvents will dissolve the filter figure 1 figure 2 How to Remove Oil WARNING When you drain the oil from the oil drain plug the fuel tank must be empty or fuel can leak out and...

Page 24: ...ve the 6x12mm screw from the rear cover of the engine switch box 2 Remove the fuse cover then pull out and inspect the fuse 3 Reinstall the rear cover Install the 6x12mm screw and tighten figure3 figu...

Page 25: ...ecause they can ignite vapors When transporting equipment Transport with fuel tank EMPTY or with fuel shut off valve OFF The following precautions should be taken if storing your engine for a period e...

Page 26: ...6 C above 77 F 25 C The engine will operate satisfactorily at an angle up to 15 Refer to the equipment operator s manual for safe allowable operating limits on slopes We recommend that you see an aut...

Page 27: ...Page 27 of 35 Parts Diagram...

Page 28: ...PIN PISTON 1 71 96082 PACKING CARBURETOR 1 17 261301 CLIP PISTON 2 72 94227 SPACER CARBURETOR 1 18 260102 COVER ASSEMBLY CRANKCASE 1 73 262701 ROD GOVERNOR 1 19 261401 OIL PLUG 1 74 264201 SPRING THRO...

Page 29: ...104 95103 CONNECTING PIPE 1 50 91348 BOLT M8X35 9 105 243609 FUEL TANK CAP COMP 1 51 260901 PIN DOWEL 2 106 546606 ONE WAY VALVE ASSEMBLY 1 52 96090 GASKET CYLINDER HEAD 1 107 550605 PACKING WASHER ON...

Page 30: ...ty claim contact Us at 1 866 443 2576 identify the product by make and model number and follow the claim instructions that will be provided The product and the purchase receipt must be provided to Us...

Page 31: ...wo years If any emissions related part on your engine is defective the part will be repaired or replaced by Northern Tool Equipment Company Inc OWNER S WARRANTY RESPONSIBILITIES As the small off road...

Page 32: ...e the first scheduled replacement date for that part If the part fails before the first scheduled replacement the part will be repaired or replaced by Northern Tool Equipment Company Inc according to...

Page 33: ...se neglect or improper maintenance was the direct cause of the need for repair or replacement of the part That notwithstanding any adjustment of a component that has a factory installed and properly o...

Page 34: ...culate Controls 1 Traps filters precipitators and any other device used to capture particulate emissions h Miscellaneous Items Used in Above Systems 1 Electronic controls 2 Vacuum temperature and time...

Page 35: ...Page 35 of 35 Distributed by Northern Tool Equipment Company Inc Burnsville Minnesota 55306 www northerntool com Made in China...

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