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TROUBLESHOOTING
Problem Possible Cause Solution
Engine will not start.
[Make sure ignition
switch is in the RUN
( l ) position.]
No spark.
Engine is flooded.
Check spark. Remove air filter cover. Remove spark plug from
cylinder. Reattach the spark plug wire and lay spark plug on top
of cylinder with the metal part of plug touching the cylinder. Pull
the starter rope and watch for spark at spark plug tip. If there is no
spark, repeat test with a new spark plug.
With the ignition switch OFF, remove spark plug. Move choke
lever to RUN position (pushed in completely) and pull starter cord
15 to 20 times. This will clear excess fuel from engine. Clean and
reinstall spark plug. Set ignition switch to RUN ( l ) position. Push
and fully release primer bulb 7 times. Pull starter three times with
choke lever at RUN. If engine does not start, move choke lever to
HALF CHOKE and repeat normal starting procedure. If engine still
fails to start, repeat procedure with a new spark plug.
Engine starts but will
not accelerate prop
-
erly.
Carburetor requires “L”
(Low Jet) adjustment.
Contact an authorized service center for carburetor adjustment.
Engine starts, then
dies.
Carburetor requires “L”
(Low Jet) adjustment.
Contact an authorized service center for carburetor adjustment.
Engine starts but will
not run properly at
high speed.
Carburetor requires “H”
(High Jet) adjustment.
Contact an authorized service center for carburetor adjustment.
Engine does not reach
full speed and/or emits
excessive smoke.
Oil/fuel mixture incorrect.
Air filter is dirty.
Spark arrestor screen is
dirty.
Carburetor requires “H”
(High Jet) adjustment.
Use fresh fuel and the correct 2-cycle oil mix ratio.
Clean air filter. Refer to Cleaning the Air Filter in the
Maintenance
section of this manual.
Clean spark arrestor screen. Refer to Cleaning the Spark Arresting
Muffler
in the Maintenance section of this manual.
Contact an authorized service center for carburetor adjustment.
Engine starts, runs,
and accelerates but
will not idle.
Chain turns at idle.
Carburetor requires
adjustment to idle speed.
Carburetor requires
adjustment to idle speed.
Air leak in the intake
system.
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 decrease speed.
Refer to Adjusting the Carburetor in the Maintenance section of
this manual.
Contact an authorized service center for a rebuild kit.
BAR AND CHAIN COMBINATIONS
Chain specifications: .325 in. pitch, .05 in. chain gauge, 72 drive links
Length of Bar Guide Bar Part Number Chain Part Number
18 in. 308626001 900920007