Fueling - Stihl FS 56 Instruction Manual

English
Gasoline with an alcohol component exceeding
10% can cause impaired engine performance in
engines with manually adjustable carburetors
and thus should not be used in these engines.
Engines with M-Tronic deliver full engine per‐
formance using gasoline with an alcohol compo‐
nent of up to 27% (E27).
9.2.2 Engine oil
If you mix the fuel yourself, use only STIHL two-
stroke engine oil or another high-performance
engine oil classified as JASO FB, JASO FC,
JASO FD, ISO-L-EGB, ISO-L-EGC or ISO-L-
EGD.
STIHL specifies STIHL HP Ultra two-stroke
engine oil or an equivalent high-performance
engine oil in order to maintain emission limits
over the machine's service life.
9.2.3 Mixing ratio
with STIHL two-stroke engine oil 1:50; 1:50 =
1 part oil + 50 parts gasoline
9.2.4 Examples
Quantity of gaso‐ STIHL two-stroke
line engine oil 1:50
Liters Liters
1 0.02
5 0.10
10 0.20
15 0.30
20 0.40
25 0.50
► Pour oil into an approved safety fuel canister
first, then add gasoline and mix thoroughly
9.3 Storing fuel mixture
Store in approved safety fuel canisters only in a
dry, cool and secure place protected against light
and sunlight.
Fuel mixture deteriorates with age – mix only as
much as needed for a few weeks. Do not store
fuel mixture for longer than 30 days. The fuel
mixture can become unusable more quickly if
exposed to light, sunlight or low or high tempera‐
tures.
STIHL MotoMix however can be stored for up to
5 years without any problems.
► Shake the canister containing the fuel mixture
thoroughly before refueling
20
(ml)
(20)
(100)
(200)
(300)
(400)
(500)
WARNING
Pressure may have built up in the canister –
open it carefully.
► The fuel tank and the canister in which fuel
mixture is stored should be cleaned thoroughly
from time to time
Residual fuel and the liquid used for cleaning
must be disposed of in accordance with regula‐
tions and without harming the environment!

10 Fueling

10.1 Preparations
► Before fueling, clean the filler cap and the area
around it to ensure that no dirt falls into the
tank.
► Position the machine so that the filler cap is
facing up.
10.2 Opening the Tank Cap
► Turn the cap counterclockwise until it can be
removed from the tank opening.
► Remove the tank cap.
10.3 Filling Up with Fuel
Take care not to spill fuel while fueling and do
not overfill the tank.
STIHL recommends you use the STIHL filler noz‐
zle for fuel (special accessory).
► Fill up with fuel.
10 Fueling
0458-547-0121-F