Spark Plug - Stihl HT 56 C Manual De Instrucciones

WARNING
If the saw chain continues to rotate when
the engine is idling, have your machine
checked and repaired by your servicing
dealer.
HT 56 C

Spark Plug

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
Shut off the engine.
N
1
2
Remove the spark plug boot (1).
N
Unscrew the spark plug (2).
N
Checking the spark plug
Clean the spark plug if it is dirty
N
Check the electrode gap (A) and
N
readjust if necessary – see
"Specifications"
Use only resistor type spark plugs of
N
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.
English
A
29