Mix Bottle; Refuelling - Westfalia FM BK 55/50 Operating Instructions Manual

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Change the place before starting the chain saw. Start the chain saw
at least 3 m from the place of refuelling.
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Use only approved and marked containers for the transport and
storage of fuel and chain oil. Keep the containers out of reach of
children. Store the containers in a dry and cool location.
▪
Fuels cannot be stored for an unlimited period of time. Mix as much
as you intend to consume in the near future.
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Fuel and fuel mixtures age through evaporation, especially at high
temperatures. Aged fuel and fuel mixtures can cause starting
problems and damage the engine. Purchase only that amount of
fuel, which will be consumed over the next few months. At high
temperatures (e.g. in summer), once fuel has been mixed it should
be used up in 6 – 8 weeks.
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Failure in mixing the correct fuel will cause severe damage to the
engine inner parts. Never use oil for 4-cylinder engines. Do not mix
the gasoline and the oil directly in the fuel tank

Mix Bottle

For mixing the fuel and the two stroke oil only use the provided mix
bottle. First fill the fuel into the bottle and then the oil. Thoroughly shake
the mixture.

Refuelling

The engine may only be operated with a
mixture of gasoline (unleaded gasoline
with minimum 89 Octane) and high quality
oil for air-cooled two-stroke engines. Only
use oil without anti oxidant additive that is
especially formulated for air-cooled two-
stroke engines.
Mixing Ratio: Gasoline 40 : Oil 1.
1. Open the cap of the fuel tank (12) and
wait some seconds for the tank pres-
sure to be equalized. Remove the fuel tank cap.
Preparation and Use
13
40 : 1
1 Liters
5 Liters
Oil
25 ml
125 ml