Troubleshooting
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PROBLEM
Engine difficult to start
Engine Problems
Engine smokes excessively
Engine runs very "rough"
Engine runs erratically
Engine cannot maintain full speed
Excessive vibration / noise
Engine Overheats
Engine will not stop
Poor Trimming performance
Trimmer head does not retain line 1. Trimmer line not properly attached
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POSSIBLE CAUSE(S)
1. Out of fuel
2. Throttle in Stop Position
3. Engine not primed
4. Engine Flooded
5. Spark plug wire disconnected
6. Defective throttle control lever or
wire
7. Fouled spark plug
8. Clogged air filter
9. Clogged fuel filter
10. Dirty Carburetor
11.Contaminated Fuel
1. No Engine Oil
2. Engine oil not at proper level
3. Fouled spark plug
4. Clogged air filter
5. Clogged fuel filter
6. Carburetor out of adjustment
7. Contaminated Fuel
1. Loose parts
2. Trimmer lines unequal length
3. Set screws in trimmer head loose
4. Engine problems (above)
1. Clogged Cooling system
2. Engine problems (above)
Defective throttle control lever or wire Inspect lever and wire. Replace if necessary.
1. Trimmer line is too short
2. Engine not at full throttle
3. Engine problems (above)
2. Broken line retainer
3. Trimmer line not correct size
4. Trimmer line too brittle
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SOLUTION(S)
1. Add fresh fuel.
2. Move Throttle to Start position.
3. Press Primer bulb 3 times, waiting 2
seconds between each push.
4. Wait a few minutes before starting.
5. Attach spark plug wire to spark plug.
6. Inspect lever and wire. Replace if
necessary.
7. Remove spark plug. Inspect. Replace if
necessary.
8. Remove and clean air filter.
9. Remove fuel filter. Inspect. Replace if
necessary.
10. Take unit to an authorized service center
for carburetor cleaning.
11. Drain fuel tank. Clean fuel tank. Fill with
fresh fuel.
1. Add engine oil.
2. Check engine oil. Add or drain engine oil if
necessary.
3. Remove spark plug. Inspect. Replace if
necessary.
4. Remove and clean air filter.
5. Remove fuel filter. Inspect. Replace if
necessary.
6. Take unit to an authorized service center
for carburetor adjustment.
7. Drain fuel tank. Clean fuel tank. Fill with
fresh fuel.
1. Tighten all fasteners.
2. Replace with trimmer lines of equal length.
3. Tighten set screws with T-handle wrench.
4. Refer to engine solutions (above).
1. Remove debris from recoil starter cover
and cooling fins.
2. Refer to engine solutions (above).
1. Replace with correct length trimmer line
(22 inches).
2. Move throttle lever to FAST position.
3. Refer to engine solutions (above).
1. Follow instructions in maintenance section
for attaching line.
2. Have trimmer head assembly replaced.
3. Use a 0.155 in. (4 mm) trimmer line.
4. Use a trimmer line that has been soaking
in water.
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