SECTION 12: TROUBLE SHOOTING GUIDE

Trouble

Possible Cause(s)

Corrective Action

 

 

 

Engine fails to start

PTO switch engaged.

Disengage PTO switch.

 

Spark plug wire disconnected.

Connect wire to spark plug.

 

Throttle control lever not in correct

Move throttle lever to FAST or START posi-

 

starting position.

tion.

 

Fuel tank empty, or stale fuel.

Fill tank with clean, fresh gasoline.

 

Blocked fuel line.

Clean fuel line.

 

Faulty spark plug.

Clean, adjust gap or replace.

 

Engine flooded.

Crank engine with throttle in FAST position.

Engine runs erratic

Unit running in START position.

Move throttle lever to FAST position.

 

Spark plug wire loose.

Connect and tighten spark plug wire.

 

Blocked fuel line or stale fuel.

Clean fuel line; fill tank with clean, fresh

 

 

gasoline.

 

Vent in gas cap plugged.

Clear vent.

 

Water or dirt in fuel system.

Drain fuel tank. Refill with fresh fuel.

 

Dirty air cleaner.

Clean air cleaner.

Engine overheats

Engine oil level low.

Fill crankcase with proper oil.

 

Air flow restricted.

Remove blower housing and clean.

 

*Lack of coolant.

*Add coolant to the correct level.

 

*Clogged cooling system.

*See your authorized engine service dealer.

Occasional skip (hesitates) at

Spark plug gap too close.

Adjust gap to .030”.

high speed

 

 

Idles poorly

Spark plug fouled, faulty or gap too

Reset gap to .030” or replace spark plug.

 

wide.

 

 

Dirty air cleaner.

Clean air cleaner.

Excessive vibration

Cutting blade loose or unbalanced.

Tighten blade and adapter. Balance blade.

 

Bent cutting blade.

Replace blade.

Mower will not mulch grass

Engine speed too low.

Set throttle between 3/4 and full throttle.

 

Wet grass.

Do not mow when grass is wet; wait until

 

 

later to cut.

 

Excessively high grass.

Mow once at a high cutting height, then

 

 

mow again at desired height or make a nar-

 

 

rower cutting swath (1/2 width).

 

Dull blade.

Sharpen or replace blade.

Uneven cut

Wheels not positioned correctly.

Place all four wheels in same height posi-

 

 

tion.

 

Dull blade.

Sharpen or replace blade.

* Liquid cooled models only.

 

 

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White Outdoor Z - 180, Z - 180L, Z - 200 manual Trouble Shooting Guide, Trouble Possible Causes Corrective Action

Z - 180, Z - 180L, Z - 200 specifications

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