Stihl MS 201 TC-M Instruction Manual page 29

2
1
Rotate the captive nut (1)
N
counterclockwise until it hangs
loosely in the sprocket cover.
Remove the sprocket cover (2) with
N
captive nut.
Pull off the spark plug boot.
N
Unscrew the spark plug.
N
MS 201 TC-M
Checking the Spark Plug
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.
–
WARNING
Arcing may occur if the adapter nut (1) is
loose or missing. Working in an easily
combustible or explosive atmosphere
may cause a fire or an explosion. This
can result result in serious injuries or
damage to property.
Use resistor type spark plugs with a
N
properly tightened adapter nut.
Installing the spark plug
Install the spark plug and connect
N
the spark plug boot (press it down
firmly) – reassembly all other parts
in the reverse sequence.
A
1
English
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