Stihl MS 194 T Instruction Manual page 23

18 Troubleshooting
Condition
Smoke or burning
smell while cutting.
18.2 Standard Setting
► Shut off the engine and engage the chain
brake.
H
► Turn the high speed screw (H) counterclock‐
wise 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.
0458-568-8321-B
Cause
Chain is not properly
sharpened.
Insufficient chain oil
in the tank.
Chain lubrication sys‐
tem is supplying
insufficient chain oil.
The chain is over-ten‐
sioned.
Chainsaw is not
being used properly.
L
Remedy
► Sharpen the chain properly.
► Fill up with chain oil.
► Do not use the chainsaw and contact your STIHL
servicing dealer for assistance.
► Tension the chain properly.
► Have correct use explained, then practice.
► 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) counterclock‐
wise 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.
1
2
► Rotate the shroud lock (2) a half turn counter‐
clockwise.
► Remove the shroud (1).
► Pull off the spark plug boot (3).
► Unscrew the spark plug.
► Dry the spark plug.
English
3
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