Ryobi PLT-3043YW Operation Manual page 13

TROUBLESHOOTING
IF THESE SOLUTIONS DO NOT SOLVETHE PROBLEM CONTACTYOUR AUTHORIZED SERVICE AGENT.
PROBLEM
Engine does not reach full
speed and emits excessive
smoke:
Engine starts, runs, and
accelerates but will not idle:
Line will not advance:
Grass wraps around
shaft housing and bump
head:
Bump knob hard to
turn:
Oil drips from muffler:
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 theTrouble Shooting Section recommends
a counterclockwise needle adjustment and no adjustments have been made since original purchase, the unit should be taken
to a factory authorized service agent for repair. In most cases, the needed adjustment is a simple task for the factory trained
service representative.
POS S IBLE CAUSE
1. Check oil fuel mixture.
2. Air filter dirty.
3. Carburetor requires adjustment.
Carburetor requires adjustment.
1. Line welded to itself.
2. Not enough line on spool.
3. Line worn too short.
4. Line tangled on spool.
5. Engine speed too slow.
1. Cutting tall grass at ground
level.
2. Operating trimmer at part
throttle.
Screw threads dirty or damaged.
1. Operating trimmer at part
throttle
2. Check oil/fuel mixture.
3. Air filter dirty.
4. Carburetor requires adjust-
ment.
- 8 -
SOLUTION
1. Use fresh fuel and the correct 2-stroke oil mix.
2. Clean air filter. Refer to" Replacing and
Cleaning Air Filter" earlier in this manual.
3. Turn" H" needle (49) clockwise 1/16 - 1/8 turn (Fig. 18).
Turn idle speed screw (50)clockwise to increase
idle speed (Fig. 18).
1. Lubricate with silicone spray.
2. Install more line. Refer to "Line Replacement"
earlier in this manual.
3. Pull lines while alternately pressing down on
and releasing bump knob.
4. Remove line from spool and rewind. Refer to
"Line Replacement" earlier in this manual.
5. Advance line at full throttle.
1. Cut tall grass from the top down.
2. Operate trimmer at full throttle.
Clean threads and lubricate with grease - if no improve-
ment, replace bump knob.
1. Operate trimmer at full throttle.
2. Use fresh fuel and the correct 2-stroke oil mix.
3. Clean per instruction in Maintenance Section.
4. Turn" H" needle clockwise 1/16 - 1/8 turn (Fig. 18).