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. ResetRefer togapengineto .030”manual.or replace spark plug.
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.
2. Replace blade.
Bent cutting 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.
12
| Categories | Lawn Mower Manual, MTD Lawn Mower Manuals |
|---|---|
| Tags | MTD 400 |
| Download File |
|
| Document Type | Owner's Manual |
| Language | English |
| Product Brand | MTD, Lawn Mower |
| Product Type | Walk Behind Mower |
| Document File Type | |
| Publisher | mtdproducts.com |
| Wikipedia's Page | MTD Products |
| Copyright | Attribution Non-commercial |
(0 votes, average: 0 out of 5)