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SECTION 11: TROUBLE SHOOTING GUIDE
Trouble Possible Cause(s) Corrective Actions
Engine fails to
start
1. Control handle disengaged.
2. Spark plug wire disconnected.
3. Dirty air cleaner.
4. Primer button not depressed.
5. Throttle control lever not in
correct starting position .
6. Fuel tank empty or stale fuel.
7. Blocked fuel line .
8. Faulty spark plug.
9. Engine flooded.
1. Engage blade control handle.
2. Connect wire to spark plug.
3. Refer to the engine manual packed with your unit.
4. Refer to the engine manual.
5. Move throttle lever to FAST or START position.
6. Clean fuel line.
7. Clean, adjust gap or replace.
8. Refer to the engine manual.
9. Wait for a while and crank the engine.
Engine runs
erratic
1. Unit running in START position.
2. Spark plug wire loose.
3. Blocked fuel line or stale fuel.
4. Carburetor out of adjustment.
1. Move throttle lever to FAST position.
2. Connect and tighten spark plug wire. Check spark plug
for fouling.
3. Clean fuel line; fill tank with clean, fresh gasoline.
4. Refer to the engine manual packed with your unit.
Engine
overheats
1. Engine oil level low.
2. Dirty aircleaner.
3. Air flow restricted.
4. Carburetor not adjusted.
1. Fill crankcase with proper oil.
2. Refer to the engine manual.
3. Stop engine and disconnect spark plug wire. Remove
blower housing and clean.
4. Refer to the engine manual.
Occasional
skip
(hesitates) at
high speed
1. Spark plug gap too close.
2. Carburetor idle mixture
adjustment improperly set.
1. Adjust gap to .030".
2. Refer to the engine manual.
Idles poorly 1. Spark plug fouled, faulty or gap
too wide.
2. Carburetor not adjusted.
1. Reset gap to .030" or replace spark plug.
2. Refer to the engine manual.
Excessive
vibration
1. Cutting blade loose or
unbalanced.
2. Bent cutting blade.
1. Tighten blade and adapter. Balance blade.
2. Replace blade.
Mower will not
mulch grass
1. Engine speed too low
2. Wet grass.
3. Excessively high grass.
1. Set throttle between 3/4 and full throttle.
2. Wait until later to cut.
3. Mow once at a high cutting height, then mow again at
desired height .
Uneven cut 1. Wheels positioned incorrectly.
2. Dull blade.
1. Place all four wheels in same height position.
2. Sharpen or replace blade.