V4.0
302cc OHV Winter Gas Engine
8717621
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7
STOPPING THE ENGINE
CAUTION! Do not choke carburetor to stop engine.
Pull the safety key (E) from the motor and the engine will stop.
FUEL RECOMMENDATIONS
This engine is certified to operate on unleaded gasoline with a minimum of 87 octane/87 AKI (91 RON). Recommend the use
of gasoline without ethanol or similar alcohol based additives. Gasoline with up to 10% ethanol (gasohol) or up to 15% MTBE
(methyl tertiary butyl ether) is acceptable. The emissions control system for this engine is EM (Engine Modifications).
NOTICE! Do not use unapproved Gasoline, such as E85. Do not mix oil in gasoline or modify the engine to run on
alternate fuels. This can damage the engine components. To protect the fuel system from gum formation, mix a
fuel stabilizer into the fuel.
If the engine is routinely operated at altitudes over 5,000 ft (1,524 meters), it will be necessary to have a qualified
technician modify the engine for increased performance. Fuel should be a minimum of 85 octane/85 AKI (89 RON) to
prevent decreased performance.
HOW TO ADD FUEL
WARNING! Do not refuel the engine inside a building. Gasoline and its vapors are extremely flammable and
explosive. Keep gasoline away from appliance pilot lights, barbecues, electric appliances, power tools, etc.
Do not use stale or contaminated gasoline or an oil/gasoline mixture. Avoid getting dirt or water in the fuel tank.
1. Refuel outdoors or in a well-ventilated area.
2. Stop the engine and place it on a level surface.
3. Let engine cool at least 2 minutes before removing the fuel cap (Fig. 4-1).
4. Clean the fuel cap area of dirt and debris. Remove the fuel cap.
5. Check the fuel level.
6. Fill the fuel tank (Fig. 4-3) with gasoline. To allow for expansion of the gasoline, do not fill above the bottom of the fuel
tank neck (Fig. 4-2).
a. Fill the tank to approximately 1.5 in. (38 mm) below the top of the fuel tank to allow for fuel expansion.
7. Take care to not overfill the tank.
IMPORTANT!
It may be necessary to lower the fuel
level depending on operating conditions.
8. Check fuel lines, tank, cap and fittings frequently for
cracks or leaks. Replace if necessary.
9. After refueling, tighten the fuel tank cap securely.
10. Wipe up any spilled fuel before starting the engine or
allow the fuel to evaporate. Spilled fuel is both a fire
hazard and an environmental hazard.
CARE & MAINTENANCE
WARNING! Always ensure that the engine is off before you begin any maintenance or repairs. An active engine part
can cause a severe injury, amputation or death if a mishap occurs.
The following section includes a maintenance schedule, routine inspection procedures and simple maintenance
procedures using basic hand tools. Service tasks that are more difficult or require special tools are best handled by a
technician or other qualified mechanic.
1. Maintain the engine with care. A well-maintained engine is more efficient and less likely to have problems.
2. Follow instructions for servicing.
a. Sustained high-load or high-temperature operation or use in unusually wet or dusty conditions will require
more frequent servicing.
Fig. 4
4-1
4-2
4-3
