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Problem
Engine starts, runs,
and accelerates
but will not idle.
C h a i n t u r n s a t
idle.
B a r a n d c h a i n
running hot and
smoking.
Engine starts and
runs, but chain is
not rotating.
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TROUBLESHOOTING
Possible Cause
Carburetor requires
adjustment to idle
speed.
Carburetor requires
adjustment to idle
speed.
Air leak in the intake
system.
Chain oil tank empty.
Chain tension is too
tight.
Oiler is not
functioning.
Chain brake is
engaged.
Chain tension is too
tight.
Guide bar and
chain assembled
incorrectly.
Guide bar and/or
chain are damaged.
Drive sprocket teeth
damaged
Turn idle speed screw "T" clockwise to increase idle
speed. Refer to Adjusting the Carburetor in the
Maintenance section of this manual.
Turn idle speed screw "T" counterclockwise to de-
crease speed. Refer to Adjusting the Carburetor in
the Maintenance section of this manual.
Contact an authorized service center for a rebuild kit.
Oil tank should be filled every time fuel tank is filled.
Tension chain per instructions in Adjusting the Chain
Tension in the Maintenance section of this manual.
Run at half throttle 30 to 45 seconds. Stop saw and
check for lubricant dripping from SAFE-T-TIP
bar. If lubricant is present, the chain may be dull or bar
may be damaged. If no lubricant is on the SAFE-T-TIP
contact an authorized service center.
Release chain brake. Refer to Operating the Chain
Brake in the Operation section of this manual.
Tension chain per instructions in Adjusting the Chain
Tension in the Maintenance section of this manual.
Refer to Replacing the Guide Bar and Chain in the
Maintenance section of this manual.
Inspect guide bar and chain for damage.
Contact an authorized service center for drive sprocket
replacement.
Page 39 — English
Solution
and guide
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