Operation Manual

KM 56 R, KM 56 RC
English
22
WARNING
If the working tool or cutting attachment
continues to run when the engine is
idling, have your machine checked and
repaired by your servicing dealer.
If the engine is down on power, difficult
to start or runs poorly at idling speed,
first check the spark plug.
Install a new spark plug after approx.
100 operating hours or earlier if the
electrodes are badly eroded/corroded.
The 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 degrade performance.
Removing the Spark Plug
N Shut off the engine.
N Remove the spark plug boot (1).
N Unscrew the spark plug (2).
Checking the spark plug
N Clean the spark plug if it is dirty
N Check the electrode gap (A) and
readjust if necessary – see
"Specifications"
N Use only resistor type spark plugs of
the approved range
Correct the problems that have caused
fouling of the spark plug:
– too much oil in fuel mix,
– dirty air filter,
– unfavorable running conditions, e.g.
operating at part throttle.
Spark Plug
1
547BA041 KN
2
000BA039 KN
A