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. Wait a few minutes to restart, but do not prime.
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. Connect and tighten spark
plug wire.
2
. Blocked fuel line or stale fuel.
2. Clean fuel line; fill tank with clean, fresh
gasoline.
3
4
. Gas cap vent plugged.
3. Clear vent.
. Water or dirt in fuel system.
4. Drain fuel tank and carburetor. Refill with fresh
fuel.
5
6
. Dirty air cleaner.
5. Refer to engine manual.
6. Refer to engine manual.
. Carburetor out of adjustment.
1. Engine oil level low.
. Dirty air filter.
1. Fill crankcase with proper oil.
2. Refer to the engine manual packed with your
unit.
2
For repairs beyond
the minor adjust-
ments listed here,
contact an authorized
service dealer.
3. Air flow restricted.
. Carburetor not adjusted properly.
3. Remove blower housing and clean.
4. Refer to engine manual.
4
Occasional skip (hesitates) 1. Spark plug gap too close.
1. Adjust gap to .030”. Refer to engine manual.
2. Refer to engine manual.
at high speed
2. Carburetor idle mixture adjustment
improperly set.
Idles poorly
1. Spark plug fouled, faulty or gap too
wide.
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.
Bent cutting blade.
1. Tighten blade and adapter. Balance blade
2. Replace blade.
2.
1. Wet grass.
1. Do not mow when grass is wet;
wait until later to cut.
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.
2. Dull blade.
1. Place all four wheels in same height position.
2. Sharpen or replace blade.
Wheels will not propel
1. Belt not installed properly.
1. Check belt for proper pulley installation and
movement.
2.
Debris clogging drive operation.
2. Clean out debris.
12
| Categories | Lawn Mower Manual, MTD Lawn Mower Manuals, Yard Machines Lawn Mower Manuals, Yard Man Lawn Mower Manuals |
|---|---|
| Tags | MTD 500, Yard Man 500 |
| Download File |
|
| Document Type | Owner's Manual |
| Language | English |
| Product Brand | Lawn Mower, Yard-Man, 500 Series |
| Product Type | Walk Behind Mower |
| Document File Type | |
| Publisher | mtdproducts.com |
| Wikipedia's Page | MTD Products |
| Copyright | Attribution Non-commercial |
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