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18 Troubleshooting
18.2 Standard Setting
► Shut off the engine and engage the chain brake.
► Turn the high speed screw (H) counterclockwise as far as
stop.
► Turn the low speed screw (L) clockwise as far as stop.
► Rotate the low speed screw (L) a quarter turn
counterclockwise.
18.3 Adjusting Idle Speed
Engine stops while idling
► Carry out the standard setting.
► Start the engine and disengage the chain brake.
► Warm up the engine by opening and closing the throttle for
about 1 minute.
► If the engine continues to stop while idling: Turn the idle
speed screw (LA) half a turn clockwise and restart the
engine.
► Turn the idle speed screw (LA) clockwise until the chain
begins to run.
► Turn the idle speed screw (LA) one full turn
counterclockwise.
Saw chain runs continuously while engine is idling
► Carry out the standard setting.
► Start the engine and disengage the chain brake.
► Warm up the engine by opening and closing the throttle for
about 1 minute.
► Turn the idle speed screw (LA) counterclockwise until the
saw chain stops running.
► Turn the idle speed screw (LA) one full turn
counterclockwise.
18.4 Clearing the Combustion Chamber
► Engage the chain brake.
► Rotate the shroud fasteners (1) a quarter turn
counterclockwise.
► Remove the shroud (2).
► Pull off the spark plug boot (3).
► Unscrew the spark plug.
► Dry the spark plug.
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