Problem Cause Remedy
Engine overheats Engine oil level low. 1.
Air flow restricted. 2.
Fill crankcase with proper amount and 1.
weight of oil.
Clean grass clippings and debris from around 2.
the engine’s cooling fins and blower housing.
Engine hesitates at high
RPM
Spark plug(s) gap too close. 1. Remove spark plug(s) and reset the gap. 1.
Engine Idles rough Spark plug(s) fouled, faulty or gap too wide. 1.
Dirty air cleaner. 2.
Replace spark plug(s). Set plug gap. 1.
Replace air cleaner element and/or clean 2.
pre-cleaner.
Excessive vibration Cutting blade loose or unbalanced. 1.
Damaged or bent cutting blade. 2.
Tighten blade and spindle. 1.
Replace blade. 2.
Uneven cut Deck not leveled properly. 1.
Dull blade. 2.
Uneven tire pressure. 3.
Perform side-to-side deck adjustment. 1.
Sharpen or replace blade. 2.
Check tire pressure in all four tires. 3.
Mower will not mulch grass
(If Equipped w/Mulching Kit)
Engine speed too low. 1.
Wet grass. 2.
Excessively high grass. 3.
Dull blade. 4.
Place throttle/choke control lever in FAST 1.
(rabbit) position.
Do not mulch when grass is wet. 2.
Mow once at a high cutting height, then 3.
mow again at desired height or make a
narrower cutting swath.
Sharpen or replace blade. 4.
37Se c t i o n 9 — tr o u b l e S h o o t i n g
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