29
GB TROUBLE SHOOTING
Problem
Engine will not start:
Engine starts but will not accelerate:
Engine starts but will only run at high speed
at half choke:
Engine does not reach full speed and emits
excessive smoke:
Engine starts, runs, and accelerates but will
not idle:
Possible Cause
1. No spark.
2. No fuel.
3. Flooded engine.
4. Starter rope pulls harder now than when
new.
Carburetor requires adjustment.
Carburetor requires adjustment.
1. Check oil fuel mixture.
2. Air filter dirty.
3. Carburetor requires adjustment.
4. Spark arrestor screen dirty.
Carburetor requires adjustment.
Solution
1. Check spark. Remove spark plug.
Reattach the spark plug cap and lay
spark plug on metal 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.
2. Push primer bulb until bulb until fuel is
visible in the bulb. If fuel is not apparent,
the primary fuel delivery system is
blocked. Contact a servicing dealer. If
primer bulb fills, engine may be flooded
(see next item).
3. Remove spark plug, turn trimmer so
spark plug hole is aimed at the ground.
Move choke lever to “RUN” and pull
starter cord 10 to 15 times. This will clear
excess fuel from engine. Clean and
reinstall spark plug. Pull starter three
times with choke lever at “RUN”. If engine
does not start, move choke lever to
“CHOKE” and repeat normal starting
procedure. If engine still fails to start,
repeat procedure with a new spark plug.
4. Contact a servicing dealer.
Contact a servicing dealer.
*Turn mixture needle (
A
) counterclockwise
1/16 turn.
1. Use fresh fuel and the correct 2-cycle oil
mix.
2. Clean per instructions in Maintenance Sec-
tion.
3. *Turn mixture needle (
A
) clockise 1/16
turn.
4. Contact a servicing dealer.
Turn idle speed screw (
B)
clockwise to in-
crease idle speed.
IF THESE SOLUTIONS DO NOT SOLVE THE PROBLEM CONTACT YOUR AUTHORIZED SERVICING DEALER
.
*
Note: The carburetor adjustment needle(s) are equipped with plastic cap(s) that
prevents counterclockwise rotation from the original factory adjustment. If your unit
exhibits specific performance problem(s) where the Trouble Shooting Section recom-
mends a counterclockwise needle adjustment andn no adjustments have been made
since original purchase, the unit should be taken to a factory authorized service center
for repair. In most cases, the needed adjustment is a simple task for the factory trained
service representative.
B
A
