Stihl FS 50 Service Manual

44 Series 4144 Components FC, FS, KM
8. Fuel System
8.1 Air Filter
Dirty air filters reduce engine power,
increase fuel consumption and
make starting more difficult. The air
filter should be checked when there
is a noticeable loss of engine power.
– See also troubleshooting, b 4.4,
b 4.5
: Take out the screw (arrow).
– Remove the filter cover (1).
: Remove the air filter (1).
– Clean the air filter (1) – see
instruction manual.
– Line up the air filter (1) – the
arrow must face the opening
(arrow).
– Reassemble in the reverse
sequence.
545RA025 TG
1
545RA171 TG
1
8.1.1 Baffle
Remove the air filter, b 8.1
: Pull out the baffle (1), check it
and replace if necessary.
– Line up the baffle (1) so that it
matches the contour of the filter
housing.
: Push the baffle (1) into the filter
housing until it snaps into
position.
– Reassemble all other parts in the
reverse sequence.
1
545RA172 TG
1
545RA173 TG
8.1.2 Filter housing
Remove the air filter, b 8.1
: Disconnect the tank vent hose (1)
from the filter housing (arrow).
: Unscrew the nuts (arrows).
– Pull off the filter housing (1),
check it and replace if necessary.
: Remove the gasket (1).
1
545RA030 TG
1
545RA174 TG
1
545RA175 TG

Stihl FS 50 Specifications

General

Engine Displacement	27.2 cc
Power Output	0.8 kW
Engine Type	2-stroke
Shaft Type	Straight
Starter System	Recoil
Overall Length	147 cm
Vibration Level	4.5 m/s²