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PROBLEMPROBLEM
PROBLEMPROBLEM
PROBLEM
POSPOS
POSPOS
POS
SIBLE CASIBLE CA
SIBLE CASIBLE CA
SIBLE CA
USEUSE
USEUSE
USE
SOLUTIONSOLUTION
SOLUTIONSOLUTION
SOLUTION
1. To check for spark: Disconnect the spark plug
wire. Reattach the spark plug wire 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 is full of fuel. If
bulb does not fill, primary fuel delivery system
is blocked. Contact a service 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 service dealer.
Contact a service dealer.
Turn mixture needle counterclockwise 1/16 turn.
See Figure 22.
1. Use fresh fuel and the correct 2-cycle oil mix.
2. Clean air filter. Refer to “Replacing and
Cleaning Air Filter” earlier in this manual.
3. Turn mixture needle clockwise 1/16 turn. See
Figure 22.
Turn idle speed screw clockwise to increase idle
speed. See Figure 22.
1. Lubricate with silicone spray.
2. Install more string. Refer to “String Replace-
ment” earlier in this manual.
3. Pull strings while alternately pressing down on
and releasing spool retainer.
4. Remove string from spool and rewind. Refer to
“String Replacement” earlier in this manual.
5. Advance string at full throttle.
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:
String will not advance:
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.
Carburetor requires adjustment.
1. String welded to itself.
2. Not enough string on spool.
3. String worn too short.
4. String tangled on spool.
5. Engine speed too slow.
TROUBLESHOOTING