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SECTION 9: TROUBLE SHOOTING GUIDE
NOTE: For repairs beyond the minor adjustments above, contact your local authorized service dealer.
Trouble Possible Cause(s) Corrective Actions
Engine fails to
start
1. Blade control handle
disengaged.
2. Spark plug wire disconnected.
3. Dirty aircleaner.
4. Primer button not depressed.
5. Throttle control lever not in
correct starting position (if so
equipped).
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 packed with your unit.
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. (If equipped)
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
properly.
1. Fill crankcase with proper oil.
2. Refer to the engine manual packed with your unit.
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 packed with your unit.
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. See an authorized service dealer.
Mower will not
mulch
grass
1. Engine speed too low (not
applicable in mowers with fixed
throttle)
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.