MS 201 C-M
English
40
N If the engine is down on power,
check the spark arresting screen in
the muffler.
N Wait for the muffler to cool down.
N Remove the chain sprocket cover –
see "Mounting the Bar and Chain"
N Take out the screw (1).
N Pull out the spark arresting
screen (2).
N Clean the spark arresting screen. If
the screen is damaged or heavily
carbonized, fit a new one.
N Refit the spark arresting screen.
N Insert the screw.
N Fit the chain sprocket cover.
If engine is down on power, difficult to
start or runs poorly at idling speed, first
check the spark plug.
Fit a new spark plug after approx. 100
operating hours or earlier if the
electrodes are badly eroded.
Wrong fuel mix (too much engine oil in
the gasoline), a dirty air filter and
unfavorable running conditions (mostly
at part throttle etc.) affect the condition
of the spark plug. These factors cause
deposits to form on the insulator nose
which may result in trouble in operation.
Removing the Spark Plug
N Move the Master Control lever to the
stop position (0).
N Disengage the chain brake.
N Rotate the captive nut (1)
counterclockwise until it hangs
loosely in the sprocket cover.
N Remove the sprocket cover (2) with
captive nut.
N Pull off the spark plug boot.
N Unscrew the spark plug.
Spark Arresting Screen in
Muffler
Spark Plug
0011BA020 KN