Checking The Spark Plug - Stihl TS 400 Instruction Manual

English
Refit the spark arresting screen
N
Mount the clip
N
28

Checking the Spark Plug

If the engine is down on power, difficult
to start or runs poorly at idle speed, first
check the spark plug.
Remove the spark plug – see
N
"Starting / Stopping the Engine".
Clean dirty spark plug.
N
Check electrode gap (A) and
N
readjust if necessary – see
"Specifications".
Rectify the problems which have
N
caused fouling of the spark plug.
Possible causes are:
Too much oil in fuel mix.
–
Dirty air filter.
–
Unfavorable running conditions.
–
Install a new spark plug after about
N
100 operating hours – or sooner if
the electrodes are badly eroded.
Install only suppressed spark plugs
of the type approved by STIHL – see
"Specifications".
To reduce the risk of arcing and fire
If the spark plug comes with a
detachable adapter nut:
Screw the adapter nut (1) onto the
N
thread and tighten it down firmly.
1
TS 400