SECTION8: TROUBLESHOOTINGGUIDE
Problem
Cause
Remedy
Engine fails to start
1.
Fuel tank empty, or stale fuel
1.
Fill tank with clean fresh gasoline/oil
mixture as specified in the engine manual.
Clean fuel line
Insert key and turn to ON position
Connect wire to spark plug.
2.
3.
4.
5.
6.
Blocked fuel line
2.
3.
4.
5.
6.
Key not in ON position
Spark plug wire disconnected
Faulty spark plug
Clean spark plug, readjust gap, or replace.
Refer to engine manual
Gasoline and oil not mixed correctly
Engine runs erratic
1.
2.
Unit running on choke
Fuel line blocked, or stale fuel
1.
2.
Move choke lever to off position.
Clean fuel line and fill tank with fresh,
clean gasoline.
3.
4.
Water or dirt in fuel system
Carburetor out of adjustment
3.
4.
Refer to engine manual on remedy.
Refer to engine manual.
Engine overheats
Loss of power
1.
Gasoline and oil not mixed correctly
1.
Drain fuel tank and refill with proper fuel
mixture.
Refer to engine manual.
2.
Carburetor out of adjustment
2.
1.
2.
3.
Spark plug wire loose
Vent in gas cap plugged
Exhaust port plugged.
1.
2.
3.
Connect and tighten spark plug wire.
Clear vent.
Clean port.
Excessive vibration
1.
Loose parts or damaged auger
1.
Stop engine immediately and disconnect
spark plug wire. Check for possible
damage. Tighten all bolts and nuts. Repair
as needed. If the problem persists, take
unit to an authorized service dealer.
Unit fails to self-propel
1.
2.
Drive cable out of adjustment
Drive belt loose or damaged
1.
2.
Adjust drive cable following instructions on
snow thrower.
Replace drive cable following instructions
on snow thrower.
Unit fails to discharge
snow
1.
Discharge chute clogged
1.
Stop engine immediately and disconnect
spark plug wire. Clean discharge chute
and the auger housing.
2.
3.
4.
Foreign object lodged in auger
Drive cable not adjusted properly
Drive belt loose or damaged
2.
3.
4.
Stop engine immediately and disconnect
spark plug wire. Remove object .
Adjust drive cable following instructions on
snow thrower.
Replace drive belt following instructions
on snow thrower.
NOTE: For repairs beyond the minor adjustments listed above, call the Customer Dealer Line at 1-800-528-1009 for
the dealer nearest you. Refer to separate engine manual, packed with your snow thrower, for engine information.
12
| Categories | Cub Cadet Snow Blower Manuals, MTD Snow Blower Manuals, Snow Blower Manuals |
|---|---|
| Tags | Cub Cadet 421R, MTD 31AH4Q3G100, MTD Snow Blower Manual |
| Download File |
|
| Document Type | Owner's Manual |
| Language | English |
| Product Brand | MTD, Snow Blower |
| Document File Type | |
| Publisher | mtdproducts.com |
| Wikipedia's Page | MTD Products |
| Copyright | Attribution Non-commercial |
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