Troubleshooting - Yard-Man 31AE633E401 Operator's Manual

SECTION 9: TROUBLESHOOTING
Problem
Engine fails to start
1. Fuel tank empty, or stale fuel.
2. Blocked fuel line.
3. Choke not in ON position
4. Faulty spark plug.
5. Safety key not in ignition switch on engine.
6. Spark plug wire disconnected.
7. Primer button not being used properly.
8. Fuel shut-off valve (if equipped) closed.
Engine runs erratic 1. Unit running on CHOKE.
2. Blocked fuel line or stale fuel.
3. Water or dirt in fuel system.
4. Carburetor out of adjustment.
Loss of power 1. Spark plug wire loose.
2. Gas cap vent hole plugged.
3. Exhaust port plugged.
Engine overheats 1. Carburetor not adjusted properly.
Excessive vibration 1. Loose parts or damaged auger.
Unit fails 1. Traction control cable in need of
to propel itself
2. Drive belt loose or damaged.
Unit fails 1. Discharge chute clogged.
to discharge snow
2. Foreign object lodged in auger.
3. Auger control cable in need of adjustment.
4. Auger belt loose or damaged.
5. Shear bolts sherared.
Cause
adjustment.
1. Fill tank with clean, fresh gasoline.
Fuel becomes stale after thirty days
unless a fuel stabilizer is used.
2. Clean the fuel line.
3. Move switch to ON position
4. Clean, adjust gap or replace.
5. Insert the key fully into the switch.
6. Connect spark plug wire.
7. Refer to the engine manual.
8. Open fuel shut-off valve.
1. Move choke lever to OFF position.
2. Clean fuel line; fill tank with clean,
fresh gasoline.
3. Drain fuel tank and carburetor. Refill
with fresh fuel.
4. Refer to the engine manual or have
carburetor adjusted by an authorized
engine service dealer.
1. Connect and tighten spark plug wire.
2. Remove ice and snow from gas cap.
Be certain vent hole is clear.
3. Refer to the engine manual.
1. Refer to the engine manual or have
the carburetor adjusted by an
authorized engine service dealer.
1. Stop engine immediately and
disconnect spark plug wire. Tighten all
bolts and nuts. If vibration continues,
have unit serviced by an authorized
service dealer.
1. Adjust traction control cable. Refer to
pages 7 and 12.
2. Replace drive belt. Refer to page 14.
1. Stop engine immediately and
disconnect spark plug wire. Clean
discharge chute and inside of auger
housing.
2. Stop engine immediately and
disconnect spark plug wire. Remove
object from auger.
3. Adjust auger control cable. Refer to
page 7.
4. Refer to page 14.
5. Replace shear bolts.
17
Remedy