6

Trouble

Shooting

For repairs beyond the minor adjust- ments listed here, contact an authorized service dealer.

Problem

 

Cause

 

Remedy

 

 

 

 

 

Engine fails to start

1.

Blade control disengaged.

1.

Engage blade control.

 

2.

Spark plug boot disconnected.

2.

Connect boot to spark plug.

 

3.

Fuel tank empty or stale fuel.

3.

Fill tank with clean, fresh gasoline.

 

4.

CHOKE not activated.

4.

Choke engine as instructed in

 

 

 

 

“Operating Your Lawn Mower”.

 

5.

Faulty spark plug.

5.

Clean, adjust gap, or replace.

 

6.

Blocked fuel line.

6.

Clean fuel line.

 

7.

Engine flooded.

7.

Wait a few minutes to restart.

 

 

 

 

 

Engine runs erratic

1.

Spark plug boot loose.

1.

Connect and tighten spark plug

 

 

 

 

boot.

 

2.

Blocked fuel line or stale fuel.

2.

Clean fuel line; fill tank with clean,

 

 

 

 

fresh gasoline.

 

3.

Vent in gas cap plugged.

3.

Clear vent.

 

4.

Water or dirt in fuel system.

4.

Drain fuel tank. Refill with

 

 

 

 

fresh fuel.

 

5.

Dirty air cleaner.

5.

Refer to engine maintenance

 

 

 

 

section.

 

6. Unit running with CHOKE applied.

6.

Push CHOKE knob in.

 

 

 

 

 

Engine overheats

1.

Engine oil level low.

1.

Fill crankcase with proper oil.

 

2.

Air flow restricted.

2.

Remove blower housing

 

 

 

 

and clean.

 

 

 

 

 

Occasional skips

1.

Spark plug gap too close.

1.

Adjust gap to .030”.

(hesitates) at

 

 

 

 

high speed

 

 

 

 

 

 

 

 

 

Idles poorly

1.

Spark plug fouled, faulty or gap

1.

Reset gap to .030” or replace

 

 

too wide.

 

spark plug.

 

2.

Dirty air cleaner.

2.

Refer to engine maintenance

 

 

 

 

section.

 

 

 

 

 

Excessive

1.

Cutting blade loose or unbalanced.

1.

Tighten blade and adapter.

Vibration

 

 

 

Balance blade.

 

2.

Bent cutting blade.

2.

See an authorized service dealer.

 

 

 

 

 

Mower will not

1.

Wet grass.

1.

Do not mow when grass is wet;

mulch grass

2.

Excessively high grass.

 

wait until later to cut.

 

2.

Mow once at a high cutting height,

 

 

 

 

then mow again at desired height

 

 

 

 

or make a narrower cutting path.

 

3.

Dull blade.

3.

Sharpen or replace blade.

 

 

 

 

 

Uneven cut

1.

Dull blade.

1.

Sharpen or replace blade.

 

 

 

 

 

12

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MTD 54M warranty Trouble Shooting, Problem Cause Remedy