Cub Cadet BB40 Oil and Fuel Mixing Instructions, Gas Information, Stroke Oil, Mixture/Fueling

Section 4

Oil and Fuel

NOTE: This unit is equipped with a 2-stroke engine that must always run on a mixture of gas and oil. It is important to measure the quantity accurately, to ensure the correct mixing ratio. Small discrepancies in the amount of oil have a great bearing on the fuel mix proportions when mixing a small amount of fuel.

Oil and Fuel Mixing

Instructions

Old and/or improperly mixed fuel are the main reasons for the unit not running properly. Be sure to use fresh, clean unleaded fuel. Follow the instructions carefully for the proper fuel/oil mixture.

Gas Information

The lowest recommended octane rating is 87. If you run the engine with gas with a lower octane than 87, “knocking” can occur. This leads to an increase in engine temperature, which can result in a serious engine breakdown.

When working at continuous high revs, a higher octane gasoline is recommended.

2-stroke Oil

For best results, use 2-stroke oil that has been specifically produced for use in small engines.

Mixing ratio is 1:50 (2%).

Contact your dealer when selecting an oil.

Mixing ratio is 1:33 (3%).

Never use 2-stroke oil that is intended for water-cooled outboard motors (referred to as outboard motor oil).

Never use oil intended for 4-stroke engines.

Gasoline is extremely flammable. Ignited Vapors may explode. Always stop the engine and allow it to cool before filling the fuel tank. Do not smoke while filling the tank. Keep sparks and open flames at a distance from the area.

Mixture/Fueling

•Always mix fuel and oil in a clean container that is intended for fuel.

•Always begin by filling the container with half the amount of fuel required. Then add the entire oil quantity. Mix (by shaking) the mixture, and then fill the container with the remaining amount of fuel.

• Mix the fuel mixture careful- ly, before pouring it into the fuel tank.

•Do not mix more than one month’s supply of fuel.

•If you don’t use the unit for a long period of time, you must empty and clean the tank.

•When fueling, be sure to clean around the fuel cap. Contamination in the tank can disrupt operations.

•Ensure that fuel is mixed thoroughly by shaking the container before filling the unit’s fuel tank.

Remove fuel cap slowly to avoid injury from fuel spray. Never operate the unit without the fuel cap securely in place.

Add fuel in a clean, well ventilated outdoor area. Wipe up any spilled fuel immediately. Avoid creating a source of ignition for spilt fuel. Do not start the engine until fuel vapors dissipate.

NOTE: Dispose of the old fuel/oil mix in accordance to Federal, State and Local regulations.

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