Section 8: Trouble Shooting Guide - MTD 410 Series Operator's Manual

SECTION 8: TROUBLE SHOOTING GUIDE
Possible Cause(s) Corrective Actions
Trouble
Engine fails to
start
Engine runs
erratic
Engine
overheats
Occasionally
skips at high
speed
Idles poorly
Excessive
vibration
Mower witt not
mulch grass
1. Blade control handle disengaged.
2. Spark plug wire disconnected.
3. Dirty aircteaner.
4. Primer button not depressed.
5. Throttle control lever (if so equipped) not in
correct starting position.
6. Fuel tank empty or stale fuel.
7. Blocked fuel line
8. Faulty spark plug.
9. Engine flooded.
1. Spark plug wire loose.
2. Blocked fuel line, if equipped, or stale fuel.
3. Vent in gas cap plugged.
4. Water or dirt in fuel system.
5. Dirty air cleaner.
6. Carburetor out of adjustment.
1. Engine oil level tow.
2. Dirty aircleaner.
3. Air flow restricted.
4,
1.
2.
Carburetor not adjusted properly.
Spark plug gap too close.
Carburetor idle mixture adjustment
improperly set.
1. Spark plug fouled, faulty or gap too wide.
2. Carburetor improperly adjusted.
3. Dirty air cleaner.
1. Cutting blade loose or unbalanced.
2. Bent cutting blade.
1. Wet grass.
2. Excessively high grass.
1. Engage blade control handle.
2. Connect wire to spark plug.
3. Refer to the engine manual.
4. Refer to the engine manual.
5. Move throttle lever to FAST or START position.
6. Fill tank with clean fresh gasoline.
7. Clean fuel line.
8. Clean, adjust gap or replace.
9. Refer to the engine manual.
1. Connect and tighten spark plug wire.
2. Clean fuel line; fill tank with clean, fresh gasoline.
3. Clear vent or threads or replace.
4. Drain fuel tank. Refill with fresh fuel.
5. Refer to the engine manual.
6. Refer to the engine manual.
1. Fill crankcase with proper oil.
2. Refer to the engine manual.
3. Stop engine and disconnect spark plug wire.
Remove blower housing and clean.
4. Refer to the engine manual.
1. Adjust gap to .030".
2. Refer to the engine manual packed with your unit.
1. Reset gap to .030" or replace spark plug.
2. Refer to the engine manual.
3. Refer to the engine manual.
1. Tighten blade and adapter. Balance blade.
2. See an authorized service dealer.
1,
2.
Do not mow when grass is wet; wait until later to cut.
Mow once at a high cutting height, then mow again
at desired height or make a narrower cutting swath
(1/2 width).
Uneven cut 1. Wheels not positioned correctly. 1. Place all four wheels in same height position.
2. Dull blade. 2. Sharpen or replace blade.
NOTE: For repairs beyond those listed above, contact an authorized service dealer or call 1(800)800-7310.
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