Refueling The Chain Saw - Stihl MS 261 Instruction Manual

13 Mixing Fuel and Refueling the Chain Saw
Mixing Fuel
WARNING
Take care when handling gasoline. Avoid direct contact with
the skin and avoid inhaling fuel vapor. Anytime you are filling
a container at the fuel pump, remove the container from your
vehicle and place it on the ground before filling. To reduce
the risk of sparks from static discharge and resulting fire
and/or explosion, do not fill fuel containers that are sitting in
or on a vehicle or trailer.
WARNING
Shaking fuel can cause pressure to build in the fuel
container. To reduce the risk of fire and severe personal
injury or property damage from fuel spraying, allow the fuel
container to sit for several minutes before opening. Open the
container slowly to release any residual pressures. Never
open the fuel container in the vicinity of any ignition source.
Read and follow all warnings and instructions that
accompany your fuel container.
To properly mix fuel:
► If not using STIHL MotoMix, only mix sufficient fuel for a
few days of work. Never mix more than a 30-day supply of
fuel.
► Store the fuel mix in an approved fuel container.
► Depending on the required amount of fuel, determine the
correct amounts of 2-cycle engine oil and gasoline in a mix
ratio of 50:1. Examples for fuel mixes:
– 1 US gals of gasoline: 2.6 oz. of 2-cycle engine oil
– 2.5 US gals of gasoline: 6.4 oz. of 2-cycle engine oil
– 5 US gals of gasoline: 12.8 oz. of 2-cycle engine oil
► When mixing, pour oil into the container first, and then add
gasoline. Close the container and shake it by hand to
ensure proper mix of oil and gasoline.
► Dispose of empty mixing-oil containers only at authorized
disposal locations.
0458-573-8621-C

13.2 Refueling the Chain Saw

WARNING
Removing the fuel cap on a pressurized fuel tank can result
in gasoline, vapors and fumes being forcefully sprayed out
from the tank in all directions. The escaping gasoline, vapors
or fumes, sometimes referred to as fuel spraying or
"geysering," can cause serious personal injury, including fire
and burn injury, or property damage, @ 5.5.
WARNING
Fuel spraying can occur, when the engine is hot and the tank
is opened while under pressure. It can occur in hot
environments even if the engine has not been running.
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