Troubleshooting - MTD 410 Series Operator's Manual

For Parts Call 606-678-9623 or 606-561-4983 For Parts Call 606-678-9623 or 606-561-4983
6
Trouble
Shooting
For repairs beyond
the minor adjustments
listed here, contact
an authorized service
dealer.
NOTE: Specifications are
subject to change without
notification or obligation.
Images my not reflect your
exact model and are for
reference purposes only.
Problem
Engine fails to start 1. Blade control disengaged.
2. Spark plug wire disconnected.
3. Fuel tank empty or stale fuel.
4. Engine not choked.
5. Faulty spark plug.
6. Blocked fuel line.
7. Engine flooded.
Engine runs erratic 1. Spark plug wire loose.
2. Blocked fuel line 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.
Engine overheats 1. Engine oil level low.
2. Air flow restricted.
3. Carburetor not adjusted properly.
Occasional skips 1. Spark plug gap too close.
(hesitates) at high speed 2. Carburetor idle mixture adjustment
Idles poorly 1. Spark plug fouled, faulty or gap too wide.
2. Carburetor improperly adjusted.
3. Dirty air cleaner.
Excessive Vibration 1. Cutting blade loose or unbalanced.
2. Bent cutting blade.
Mower will not mulch grass 1. Wet grass.
2. Excessively high grass.
3. Dull blade.
1. Wheels not positioned correctly.
Uneven cut
2. Dull blade.
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Cause
improperly set.
12
Remedy
1. Engage blade control.
2. Connect wire to spark plug.
3. Fill tank with clean, fresh gasoline.
4. Choke engine as instructed in the
"Operating Your Lawn Mower" section.
5. Clean, adjust gap, or replace.
6. Clean fuel line.
7. Wait a few minutes to restart, but do
not prime.
1. Connect and tighten spark plug wire.
2. Clean fuel line; fill tank with clean,
fresh gasoline.
3. Clear vent.
4. Drain fuel tank. Refill with fresh fuel.
5. Refer to engine manual.
6. Refer to engine manual.
1. Fill crankcase with proper oil.
2. Remove blower housing and clean.
3. Refer to engine manual.
1. Adjust gap to .030-inch.
2. Refer to engine manual.
1. Reset gap to .030-inch or replace
spark plug.
2. Refer to engine manual.
3. Refer to engine manual.
1. Tighten blade and adapter. Balance
blade.
2. See an authorized service dealer.
1. Do not mow when grass is wet; 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. Sharpen or replace blade.
1. Place all four wheels in same
height position.
2. Sharpen or replace blade.