Homelite UT08930A Manual Del Operador página 12

TROUBLESHOOTING
IF THESE SOLUTIONS DO NOT SOLVE THE PROBLEM CONTACT YOUR AUTHORIZED SERVICING DEALER.
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:
"H"
"L"
A
12
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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.
Note: This engine complies with EPA (Environmental Protection Agency)
regulations which require exhaust emission control. As a result, the carburetor
adjustment needle(s) are equipped with plastic cap(s) that prevents counter-
clockwise 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 and 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.
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 proce-
dure. If engine still fails to start, repeat proce-
dure with a new spark plug.
4. Contact a servicing dealer.
Turn "L" needle counterclockwise 1/16 turn.
If "L" low needle can not be turned counter-
clockwise, do not force plastic limiter caps.
Contact a servicing dealer.
Turn "H" needle counterclockwise 1/16 turn.
If "H" high needle can not be turned counter-
clockwise, do not force plastic limiter caps.
Contact a servicing dealer.
1. Use fresh fuel and the correct 2-cycle oil
mix.
2. Clean per instructions in Maintenance Sec-
tion.
3. Turn "H" needle clockwise
1/16 turn.
4. Contact a servicing dealer.
Turn idle speed screw (A) clockwise to increase idle
speed.