MTD 54M Series 21 Inch Rotary Lawn Mower Owners Manual

6
Trouble
Shooting
Problem
Cause
Remedy
Engine fails to start
1.  Blade control  handle disengaged.
1.  Engage blade control  handle.
2.  Connect wire to spark plug.
3.  Fill tank with clean, fresh gasoline.
4.  Refer to engine manual.
5.  Clean, adjust gap, or replace.
6.  Clean fuel line.
7.   Waitprime.a few minutes to restart, but do not
2.
3.
4.
5.
6.
7.
Spark plug wire disconnected.
Fuel tank empty or stale fuel.
Engine not primed.
Faulty spark plug.
Blocked fuel line.
Engine flooding.
Engine runs erratic
Engine overheats
1.  Spark plug wire  loose.
1.  Connectplug wire.and tighten  spark
2
.  Blocked fuel line or stale  fuel.
2.  Cleangasoline.fuel line; fill tank with  clean, fresh
3.  Gas cap vent plugged.
4.  Water or dirt in fuel system.
3.  Clear vent.
4.  Drainfresh fuel.fuel tank and carburetor. Refill with
For repairs beyond
the minor adjust-
ments listed here,
contact an autho-
rized service dealer.
5
.  Dirty air cleaner.
5.  Refer to engine manual.
6.  Refer to engine manual.
6
.  Carburetor out of adjustment.
1.  Engine oil level  low.
1.  Fill crankcase  with proper oil.
2
.  Dirty air filter.
2.  Referyour unit.to the engine manual packed with
3.  Air flow restricted.
4.  Carburetor not adjusted properly.
3.  Remove blower housing and clean.
4.  Refer to engine manual.
Occasional skip
1.  Spark plug gap  too close.
1.  Adjustmanual.gap to .030”. Refer to engine
2.  Refer to engine manual.
(hesitates) at high speed
2
.  Cimproperlyarburetor set.idle mixture adjustment
Idles poorly
1.  Swpidaer.k plug fouled,  faulty or gap too      1.   Reset gap to .030” or replace spark plug.
Refer to engine manual.
2
3
.  Carburetor improperly adjusted.
.  Dirty air cleaner.
2.  Refer to engine manual.
3.  Refer to engine manual.
Excessive vibration
Mgroawsser will not mulch
1.  Cutting  Blade loose or unbalanced.      1.  Tighten blade  and adapter. Balance blade
2.  Bent cutting blade.
2.  Replace blade.
1.  Wet grass.
1.  Dowaitnotuntilmowlaterwhento cut.grass is wet;
2.
Excessive high grass.
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.  Wheels not positioned  correctly.
Dull blade.
1.  Placeposition.all four wheels in same  height
2.  Sharpen or replace blade.
2.
1
Product Specification
CategoriesLawn Mower Manual, MTD Lawn Mower Manuals
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- 48 pages
Document TypeOwner's Manual
LanguageEnglish
Product BrandMTD, Lawn Mower
Document File TypePDF
Publishermtdproducts.com
Wikipedia's PageMTD Products
CopyrightAttribution Non-commercial
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