Yard-Man 21A-392B401 - Manual (Page 13)

13
SECTION 8: TROUBLESHOOTING
NOTE: For repairs beyond the minor adjustments listed above, contact your nearest authorized service dealer.
Problem Cause Remedy
Engine fails to start 1. Spark plug wire disconnected.
2. Fuel tank empty or stale fuel.
3. Throttle control lever not in correct
starting position. (If Equipped)
4. Choke not in ON position.
5. Blocked fuel line.
6. Faulty spark plug.
7. Engine flooded
1. Connect wire to spark plug.
2. Fill tank with clean, fresh gasoline.
3. Move throttle lever to start position.
4. Move switch to ON position.
5. Clean fuel line.
6. Clean, adjust gap, or replace.
7. Wait a few minutes to restart, but do not
prime.
Engine runs erratic 1. Spark plug wire loose.
2. Unit running on CHOKE.
3. Blocked fuel line or stale fuel.
4. Vent in gas plugged.
5. Water or dirt in fuel system.
6. Dirty air cleaner.
7. Carburetor out of adjustment.
1. Connect and tighten spark plug wire.
2. Move choke lever to OFF position.
3. Clean fuel line; fill tank with clean, fresh
gasoline
4. Clear vent.
5. Drain fuel tank. Refill with fresh fuel.
6. Clean air cleaner.
7. Adjust carburetor.
Engine overheats 1. Engine oil level low.
2. Dirty air cleaner.
3. Air flow restricted.
4. Carburetor not adjusted properly.
1. Fill crankcase with proper oil.
2. Clean air cleaner.
3. Remove blower housing and clean.
4. Adjust carburetor.
Tines do not engage 1. Foreign object lodged in tines.
2. Tine clevis pin(s) missing.
3. Pulley and idler not in correct
adjustment.
4. Control cable not adjusted properly.
5. Belt worn and/or stretched.
1. Dislodge foreign object.
2. Replace tine clevis pin(s).
3. Take unit to authorized service dealer.
4. Adjust control cable.
5. Replace belt.