Husqvarna LE389 Gasoline Requirements, Type of gasoline to use, High-altitude use, Adding Fuel

Gasoline Requirements

All gasoline is not the same. If a starting or performance problem is encountered after new gasoline has been used, try another service station or change brands.

This engine is designed to operate on gasoline. The emission control system for this engine is EM (Engine Modifications).

Type of gasoline to use

Always use gasoline that meets these requirements:

•Clean, fresh, unleaded gasoline.

•A minimun of 87 octane/87 AKI (91 RON). At altitudes over 5,000 feet, see “High-altitude use”.

•Gasoline with up to 10% ethanol (gasohol) or up to 15% MTBE (methyl tertiary butyl ether), is acceptable.

•Use of any gasoline other than those approved above will void the engine warranty. Some areas require that fuel pumps be marked if the gasoline contains alcohols or ethers. If you are not sure if your gasoline contains alcohol or ethers that are different than those approved above, then check with the service station operator.

•Do not modify the engine fuel system or carburetor to run on alternative fuels.

•Never mix oil with gasoline.

High-altitude use

At higher altitudes (over 5,000 feet), 85 octane / 85 AKI (89 RON) gasoline can be used. Operation at high altitude may require a high-altitude carburetor jet kit to improve performance and decrease fuel consumption.

Adding Fuel

1Stop the engine. Before you remove gas cap (A), let the engine cool at least 2 minutes.

2Remove the gas cap. Fill the fuel tank (B) to approximately 1-1/2 inches below top of neck to allow for fuel expansion. Be careful, do not overfill.

3Before starting the engine, replace the gas cap.

A

B

Figure 10: Gas Cap

Operation

Gasoline Storage

Follow these guidelines when storing gasoline for longer than 30 days:

•If fuel stabilizer is used, you do not need to drain gasoline prior to storage.

•If no fuel stabilizer is used, then always remove gasoline from engine during storage.

Fuel stabilizer

•If you do not want to remove the gasoline, add a fuel stabilizer to any gasoline left in the fuel tank. A fuel stabilizer will minimize gum deposits and acids. If the fuel tank is almost empty, mix the fuel stabilizer with fresh gasoline in a separate container and add the mixture to the fuel tank. Always follow the instructions on the stabilizer container. Start the engine. Let the engine run for 3 minutes to allow the mixture to reach the carburetor.

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WARNING

Gasoline and its vapors are extremely flammable and explosive.

Fire or explosion can cause severe burns or death.

When Adding Fuel

•Stop the engine. Let engine cool at least 2 minutes before removing the gas cap.

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

•Do not overfill fuel tank. Fill tank to approximately 1-1/2 inches below top of neck to allow for fuel expansion.

•Keep gasoline away from sparks, open flames, pilot lights, heat, and other ignition sources.

•Check fuel lines, tank, cap, and fittings frequently for cracks or leaks. Replace if necessary.

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