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19
PROBLEM
POSSIBLE CAUSE(S)
SOLUTION(S)
Engine difficult to start
1. Out of fuel
2. Engine not primed
3. Engine Flooded
4. Spark plug wire disconnected
5. Defective throttle control lever or
wire
6. Fouled spark plug
7. Clogged air filter
8. Dirty Carburetor
9.Contaminated Fuel
1. Add fresh fuel.
2. Press Primer bulb 3 times, waiting 2
seconds between each push.
3. Wait a few minutes before starting.
4. Attach spark plug wire to spark plug.
5. Inspect lever and wire. Replace if
necessary.
6. Remove spark plug. Inspect. Replace if
necessary.
7. Remove and clean air filter.
8. Take unit to an authorized service center
for carburetor cleaning.
9. Drain fuel tank. Clean fuel tank. Fill with
fresh fuel.
Engine Problems
Engine smokes excessively
Engine runs very “rough”
Engine runs erratically
Engine cannot maintain full speed
1. No Engine Oil
2. Engine oil not at proper level
3. Fouled spark plug
4. Clogged air filter
5. Carburetor out of adjustment
6. Contaminated 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. Take unit to an authorized service center
for carburetor adjustment.
6. Drain fuel tank. Clean fuel tank. Fill with
fresh fuel.
Excessive vibration / noise
1. Loose parts
2. Trimmer lines unequal length
3. Engine problems (above)
1. Tighten all fasteners.
2. Replace with trimmer lines of equal length.
3. Refer to engine solutions (above).
Engine Overheats
1. Clogged Cooling system
2. Engine problems (above)
1. Remove debris from recoil starter cover
and cooling fins.
2. Refer to engine solutions (above).
Engine will not stop
Defective control lever or wire
Inspect lever and wire. Replace if necessary.
Poor Trimming performance
1. Trimmer line is too short
2. Engine problems (above)
1. Replace with correct length trimmer line
(22 inches).
2. Refer to engine solutions (above).
Trimmer head does not retain line
1. Trimmer line not properly attached
2. Broken line retainer
3. Trimmer line not correct size
4. Trimmer line too brittle
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.
Troubleshooting
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