Clearing The Combustion Chamber - Stihl MS 500i W Instruction Manual

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18.2 Clearing the Combustion Chamber

► Engage the chain brake.
4 3
2
► Rotate the filter cover lock (1) a quarter turn
counterclockwise.
► Remove the filter cover (2).
► Rotate the shroud lock (1) a quarter turn
counterclockwise.
► Remove the shroud (4).
► Pull off the spark plug boot (5).
► Unscrew the spark plug.
► Dry the spark plug.
WARNING
Unconfined sparks may occur if the starter grip is pulled after
the spark plug boot has been removed. Sparks may cause a
fire or an explosion in an easily combustible or explosive
environment. This can result in serious or fatal injuries and
damage to property.
► Depress the stop switch and keep it depressed before
pulling the starter grip.
► Depress the stop switch and hold it in that position.
► Pull the starter grip and guide it back several times.
The combustion chamber is cleared.
► Insert and tighten down the spark plug.
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1
5
► Position the spark plug boot (5) so that the lug (6) points
vertically upwards.
► Press the spark plug boot (5) firmly home.
► Place the shroud (4) in position.
► Rotate the shroud lock (3) clockwise until you hear a click.
The shroud lock (3) is secure.
► Fit the filter cover (2).
► Rotate the filter cover lock (1) clockwise until you hear a
click.
The filter cover lock (1) is secure.
18 Troubleshooting
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5
0458-809-0121-A