SECTION12: TROUBLESHOOTING
Trouble
Engine fails to start
Engine runs erratic
,kl
Engine overheats
Engine hesitates at high RPM
Idles poorly
Excessive vibration
Mower will not mulch grass
Uneven cut
Possible Cause(s)
PTO (Blade Engage) lever engaged.
Parking brake not engaged.
Spark plug wire disconnected.
Throttle/choke control not in correct
starting position.
Choke not activated
Fuel tank empty, or stale fuel
Blocked fuel line.
Faulty spark plug.
Engine flooded.
Unit running with CHOKE activated.
Spark plug wire(s) loose.
Blocked fuel line or stale fuel.
Vent in gas cap plugged:
Water or dirt in fuel system.
Dirty air cleaner. *'L
Engine oil level tow.
Air flow restricted.
Spark plug gap !.o.o...close.
Spark plug fouled, faulty or gap too
wide.
Dirty air cleaner.
Cutting blade loose or unbalanced.
Damaged or bent cu,tting blade.
Engine speed too low.
Wet grass.
Excessively high grass.
Dull blade.
Deck not balanced pr(_perly,
Dull blade.
Uneven.tire pressure.:_ _, ;.
E' --" ". _p
Corrective Action
Place PTO (Blade Engage)lever in,(OFF) position.
Engage parking brake.
Connect wire to spark plug.
Move Throttle/Choke Control into CHOKE position.
Move Throttle/Choke Control into CHOKE position.
Fill tank with clean; fresh (less than 30 days old) gas.
Clean fuel line or replace fuel filter.
Clean,. adjust gap or replace plug.
Crank engine with throttle in FAST position.
Move Throttle/Choke'Control out of CHOKE position."
Connect and tighten spark p!ug wire(s).
Clean fuel line; fill tank with clean; fresh (less than 30
days :old) gasoline. Replace fuel filter, if so equipped.
i Clear vent.or replace cap if damaged.
' Drain fuel tank. Refill with clean, fresh (less than 30
days old) gasoline.
Replace air cleaner paper element or clean foam
precteaner.
"Fiil crankcase with proper capacity and w_,ight of oil.
Clean grass clippings and debris from around the
engine's cooling fins and blower housing.
Remove spark plug and reset the gap.
Replace spark plug. Set plug gap.
Replace air cleaner.......... element or clean• pre-cleaner. .......
Tighten blade and spindle. Balance blade.
Rep!ace blade.
Place throttle in FAST'"irabbit ) position.
Do not mow when grass is wet; wait until later to cut.
Mow.o_e at a high cutting height, then mow again at
desired height or make a narrower cutting swath.
SharPen or replace blade.
Perform side-to-side deck adjustment. ; '
sharpen or replace' blad:e'.
C!iecktire pressure in all four tires_ " ' . ,,,
T............. .....
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