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How to Check/Add Oil 

Figure 1 

1. Remove the dipstick (O) and swipe with a clean cloth (Figure 1). 

2. Insert the dipstick into the filler neck without screwing it in. 

3. Remove the dipstick and check the oil level. Make sure the oil is at the FULL mark (B) on the dipstick. 4. To add 

oil, pour the oil slowly into the engine oil fill (A). Do not overfill. After adding oil, wait one minute and then recheck 
the oil level. 

4. Replace and tighten the dipstick. 

Fuel Recommendations 
Fuel must meet these requirements:

 

·

Clean, fresh, unleaded gasoline. 
· A minimum of 87 octane/87 AKI (91 RON). High altitude use, see below. 
·Gasoline with up to 10% ethanol (gasohol) or up to 15% MTBE (methyl tertiary butyl ether) is acceptable. 

Ca

ution

Do not use unapproved Gasoline, such as E85. Do not mix oil in gasoline or modify the engine to run on alternate fuels. 

This will damage the engine components and void the engine warranty. 

To protect the fuel system from gum formation, mix a fuel stabilizer into the fuel. See Storage. All fuel is not the same. This engine is 
certified to operate on gasoline. The emissions control system for this engine is EM (Engine Modifications). 

High Altitude 

At altitudes over 5,000 feet (1524 meters), a minimum 85 octane/85 AKI (89 RON) gasoline is acceptable. To remain 
emissions compliant, high altitude adjustment is required. Operation without this adjustment will cause decreased 
performance, increased fuel consumption, and increased emissions. See an authorized service center for high altitude 
adjustment information. 

Operation of the engine at altitudes below 2,500 feet (762 meters) with the high altitude kit is not recommended. 

How to Add Fuel 

WARNING 

Gasoline and its vapors are extremely flammable and explosive. 

Fire or explosion can cause severe burns or death. 

When Adding Fuel 

·

 Turn engine off and let engine cool at least 2 minutes before removing the fuel cap. 

· Fill fuel tank outdoors or in well-ventilated area. 

· Do not overfill fuel tank. Fill tank to approximately 1.5 inches (38 mm) below top of neck to allow for fuel
   expansion. 

7

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Страница 1: ...420CC ENGINE OWNER S MANUAL 45752 ...

Страница 2: ...nual to become familiar with this product before you begin using it This Engine is designed for certain applications only The distributor cannot be responsible for issues arising from modification We strongly recommend this Engine not be modified and or used for any application other than that for which it was designed If you have any questions relative to a particular application DO NOT use the E...

Страница 3: ...d result in damage to the engine This manual contains safety information to make you aware of Shock Slow Stop Fast the hazards and risks associated with engines and how to avoid them Because we do not necessarily know what equipment this engine will power it is important that you read and understand these instructions and the instructions for the equipment this engine powers WARNING We do not appr...

Страница 4: ... yourself with the location of various features and controls 3 Air cleaner Muffler Spark plug Throttle lever Recoil starter Starting handle Fuel shutoff Choke lever Fuel filler cap Fuel tank Engine identification Dipstick Drain plug A B C D E F G H I J K L A B C D E F G H I J K L ...

Страница 5: ...ion can result Operate equipment with guards in place Keep hands and feet away from rotating parts Tie up long hair and remove jewelry Do not wear loose fitting clothing dangling drawstrings or items that could become caught WARNING Engines give off carbon monoxide an odorless colorless poison gas engine starts WHEN OPERATING EQUIPMENT Do not choke carburetor to stop engine WHEN TRANSPORTING EQUIP...

Страница 6: ...hoke lever J the choke position Note Choke is usually unnecessary when restarting a warm engine 4 5 6 Move Throttle lever D away from MIN position about 1 3 of way toward MAX position Turn the Engine switch F to the ON position Recoil Start Firmly hold the starting handle H Pull the starter cord handle slowly until resistance is felt the pull rapidly WARNING Rapid retraction of the starter cord ki...

Страница 7: ...it Check the spacing on the electrode and set the gap to the correct dimension See Maintenance Section If plug is damaged replace with a new spark plug Ensure the spark plug is installed and wire is connected Warning Do not crank engine with spark plug removed Oil Oil Recommendations We recommend the use of suitable oils for best performance Other high quality detergent oils are acceptable if clas...

Страница 8: ...ystem from gum formation mix a fuel stabilizer into the fuel See Storage All fuel is not the same This engine is certified to operate on gasoline The emissions control system for this engine is EM Engine Modifications High Altitude At altitudes over 5 000 feet 1524 meters a minimum 85 octane 85 AKI 89 RON gasoline is acceptable To remain emissions compliant high altitude adjustment is required Ope...

Страница 9: ... amputation or laceration Fire hazard Before performing adjustments or repairs Disconnect the spark plug wire and keep it away from the spark plug Use only correct tools Do not tamper with governor spring links or other parts to increase engine speed Replacement parts must be the same and installed in the same position as the original parts Do not strike the flywheel with a hammer or hard object b...

Страница 10: ...w muffler engine cylinder and fins to cool before touching Remove accumulated debris from muffler area and cylinder area WARNING Replacement parts must be the same and installed in the same position as the original parts or fire could result How to Service the Air Filter see figure 3 1 Remove the air cleaner outside cover A Be careful to prevent dirt and debris from falling into the air cleaner as...

Страница 11: ...age to the electrical system or a fire could result 1 2 3 Remove the 6x12mm screw from the rear cover of the engine switch box Remove the fuse cover then pull out and inspect the fuse Reinstall the rear cover Install the 6x12mm screw and tighten How to Service the Battery see figure 7 if applicable WARNING Be careful not to connect the battery in reverse polarity as this will short circuit the bat...

Страница 12: ...may result in white smoke emission from muffler Note Storing or transporting with the spark plug down will result in hard starting and or engine smoking Store in a clean dry area When removing unit from storage only use fresh gasoline Perform operation checks see maintenance schedule before starting engine 11 Engine power will decrease 3 5 for each 1 000 feet 300 meters above sea level and 1 for e...

Страница 13: ...GE The emissions control system is warranted for two years If any emissions related part on your engine is defective the part will be repaired or replaced by Northern Tool and Equipment Company Inc OWNER S WARRANTY RESPONSIBILITIES As the NRSI ENGINE owner you are responsible for the performance of the required maintenance listed in your owner s manual Northern Tool and Equipment Company Inc recom...

Страница 14: ...al is warranted for the warranty period stated above If the part fails during the period of warranty coverage the part will be repaired or replaced by Northern Tool and Equipment Company Inc according to Subsection d below Any such part repaired or replaced under warranty will be warranted for the remainder of the period b Any warranted part that is scheduled only for regular inspection in your Ow...

Страница 15: ...ts that are not exempted by the U S EPA may not be used The use of any non exempted add on or modified parts by the ultimate purchaser will be grounds for disallowing a warranty claims Northern Tool and Equipment Company Inc will not be liable to warrant failures of warranted parts caused by the use of a non exempted add on or modified part k The manufacturer issuing the warranty shall provide any...

Страница 16: ...k plug b Ignition coil 4 Catalytic Muffler Assembly including a Muffler gasket b Exhaust manifold c Catalytic converter 5 Crankcase Breather Assembly including a Breather connection tube 6 Fuel tank evaporative emissions control system including a Purge Valves b Carbon Canister c Canister Mounting Brackets d Fuel Cap 7 Miscellaneous items Used in Above Systems including a Switches b Hoses belts co...

Страница 17: ...es to the original purchaser of the equipment and is non transferable Verification of purchase is the responsibility of the buyer Parts will be replaced or repaired at no charge except when the equipment has failed due to lack of proper maintenance Any misuse abuse alteration or improper installation or operation will void warranty Determining whether a part is to be replaced or repaired is the so...

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