Stihl MS 291 C User Manual

MS 261 C-M
English
37
The engine idles. The chain saw is
calibrated and ready for use.
N If engine performance deteriorates,
check the spark arresting screen in
the muffler
N Let the muffler cool down
N Unscrew the screw (1)
N Pull out spark arresting screen (2)
N Clean the dirty spark arresting
screen, replace if damaged or
heavily carbonized
N Refit the spark arresting screen
N Fit screw
N If the engine is down on power,
difficult to start or runs poorly at idle
speed, first check the spark plug.
N Fit a new spark plug after about 100
operating hours – or sooner if the
electrodes are badly eroded. Install
only suppressed spark plugs of the
type approved by STIHL – see
"Specifications".
Removing the Spark Plug
N Remove the shroud – see "Shroud".
N Pull off the spark plug boot.
N Clean away loose dirt from around
the spark plug.
Spark Arresting Screen in
Muffler
0001BA009 KN
2
1
Spark Plug
5902BA013 KN

Stihl MS 291 C Specifications

General

Brand	Stihl
Model	MS 291 C
Category	Chainsaw
Language	English