Poulan CO18542STA User Manual - Page 28

Engine backfires

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TROUBLESHOOTING CHART PROBLEM Poor grass discharge CAUSE 1. Engine speed too slow. 2. Travel speed too fast. 3. Wet grass. 4. Mower deck not level. 5. Low/uneven tire air pressure. 6. Worn, bent or loose blade. 7. Buildup of grass, leaves and trash under mower. 8. Mower drive belt worn. 9. Blades improperly installed. 10. Improper blades used. 11. Clogged mower deck vent holes from buildup of grass, leaves, and trash around mandrels. CORRECTION 1. Place throttle control in "FAST" position. 2. Shift to slower speed. 3. Allow grass to dry before mowing. 4. Level mower deck. 5. Check tires for proper air pressure. 6. Replace/sharpen blade. Tighten blade bolt. 7. Clean underside of mower housing. 8. Replace mower drive belt. 9. Reinstall blades sharp edge down. 10. Replace with blades listed in this manual. 11. Clean around mandrels to open vent holes. Headlight(s) not working (if so equipped) 1. Switch is "OFF". 1. Turn switch "ON". 2. Bulb(s) or lamp(s) burned out. 2. Replace bulb(s) or lamp(s). 3. Faulty light switch. 3. Check/replace light switch. 4. Loose or damaged wiring. 4. Check wiring and connections. 5. Blown fuse. 5. Replace fuse. Battery will not charge 1. Bad battery cell(s). 2. Poor cable connections. 3. Faulty regulator (if so equipped). 4. Faulty alternator. 1. Replace battery. 2. Check/clean all connections. 3. Replace regulator. 4. Replace alternator. Engine "backfires" 1. Engine throttle control not set 1. Move throttle control when turning between half and full speed between half and full speed engine "OFF" (fast) position before stopping (fast) position before engine. stopping engine. 28

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Poor grass
1. Engine speed too slow.
1. Place throttle control in
discharge
“FAST” position.
2. Travel speed too fast.
2. Shift to slower speed.
3. Wet grass.
3. Allow grass to dry before
mowing.
4. Mower deck not level.
4. Level mower deck.
5. Low/uneven tire air
5. Check tires for proper air
pressure.
pressure.
6. Worn, bent or loose blade.
6. Replace/sharpen blade.
Tighten blade bolt.
7. Buildup of grass, leaves
7. Clean underside of mower
and trash under mower.
housing.
8. Mower drive belt worn.
8. Replace mower drive belt.
9. Blades improperly installed.
9. Reinstall blades sharp edge
down.
10.Improper blades used.
10.Replace with blades listed in
this manual.
11.Clogged mower deck vent
11.Clean around mandrels to
holes from buildup of grass,
open vent holes.
leaves, and trash around
mandrels.
Headlight(s) not
1. Switch is “OFF”.
1. Turn switch “ON”.
working
2.
Bulb(s) or lamp(s) burned out.
2. Replace bulb(s) or lamp(s).
(if so equipped)
3. Faulty light switch.
3. Check/replace light switch.
4. Loose or damaged wiring.
4.
Check wiring and connections.
5. Blown fuse.
5. Replace fuse.
Battery will not
1. Bad battery cell(s).
1. Replace battery.
charge
2. Poor cable connections.
2. Check/clean all connections.
3. Faulty regulator
3. Replace regulator.
(if so equipped).
4. Faulty alternator.
4. Replace alternator.
Engine “backfires”
1. Engine throttle control not set 1. Move throttle control
when turning
between half and full speed
between half and full speed
engine “OFF”
(fast) position before stopping
(fast) position before
engine.
stopping engine.
PROBLEM
CAUSE
CORRECTION
TROUBLESHOOTING CHART