Stihl FS 50 Service Manual

19Series 4144 Components FC, FS, KM
5.8 Muffler / Spark Arresting Screen
Always check and, if necessary,
repair the fuel system, carburetor,
air filter and ignition system before
looking for faults on the engine.
– Troubleshooting, b 4.5
– Remove the drive tube, b 9.1
– Remove the rewind starter,
b 6.2
– Remove the shroud, b 5.1
: Take out the screws (arrows).
– Remove the muffler (1), check
and replace if necessary.
: Remove the gasket (1).
545RA050 TG
1
545RA051 TG
1
Spark arresting screen
(if fitted)
: Take out the screw (arrow) and
remove the spark arresting
screen (1).
– Clean the spark arresting screen
or replace if necessary.
– Reassemble in the reverse
sequence.
: Inspect and clean the sealing
faces (arrows) and remove any
gasket residue, b 11
545RA052 TG
1
545RA053 TG
Use a new exhaust gasket.
– Insert the screws.
: Push the exhaust gasket (1) over
the screws.
: Carefully place the muffler (1) in
position.
– Fit the screws with washers and
check correct position of exhaust
gasket again.
– Insert screws and tighten them
down firmly.
– Reassemble all other parts in the
reverse sequence.
– Tightening torques, b 3.4
545RA055 TG
1
545RA056 TG
1

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