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16
TROUBLESHOOTING THE ENGINE
Problem
Probable Cause
Corrective Action
Unit wonʼt start or starts but will
not run.
Incorrect starting procedures.
Follow instructions in the User
Manual.
Incorrect carburetor mixture
adjustment setting.
Have carburetor adjusted by an
Authorized Service Center.
Fouled spark plug
Clean / gap or replace plug.
Fuel filter plugged.
Replace fuel filter.
Unit starts, but engine has low
power.
Incorrect lever position on choke.
Move to RUN position.
Dirty spark arrester screen
Replace spark arrester screnn
Dirty air filter.
Remove, clean and reinstall filter.
Incorrect carburetor mixture
adjustment setting.
Have carburetor adjusted by an
Authorized Service Center.
The distance between the motor
and the ignition coil has changed
Arrange for an authorized
Customer Service workshop to
adjust the distance between the
rotor and the ignition coil to
0.3-0.4 mm
Engine hesitates.
No power under load.
Incorrect carburetor mixture
adjustment setting.
Have carburetor adjusted by an
Authorized Service Center.
Runs erratically.
Incorrectly gapped spark plug.
Clean / gap or replace plug.
Smokes excessively.
Incorrect carburetor mixture
adjustment setting.
Have carburetor adjusted by an
Authorized Service Center.
Incorrect fuel mixture.
Use properly mixed fuel (40:1
mixture).
Chain does not move
chain brake activated
release chain brake
Poor cutting performance
blunt chain
sharpen chain
chain incorrectly fitted
check chain fitment
chain tension
check tension
Saw works only with difficulty,
chain jumps off term
chain tension
check tension
Chain becomes hot
chain lubrication
check oil level
check chain lubricatiom
Anleitung SCS 38_SPK7:_ 20.11.2006 15:43 Uhr Seite 16