Troubleshooting - Ariens 946150 – ST622 CARB Owner's/Operator's Manual

PROBLEM
Engine will
not start or
runs poorly
Engine
overheats
Poor
trimming
performance
Trimmer
vibrates

TROUBLESHOOTING

PROBABLE CAUSE
1. Spark plug wire disconnected.
2. Engine not primed
3. Fuel tank empty.
4. Throttle control lever not in
correct position.
5. Engine is flooded.
6. Defective or incorrectly gapped
spark plug.
7. Stale or contaminated gasoline.
8. Engine cooling system
overloaded with debris.
9. Dirty carburetor or fuel line.
10.Dirty air filter or precleaner.
11. Carburetor out of adjustment.
1. Engine cooling system
overloaded with debris.
2. Carburetor out of adjustment.
1. Engine not set at Fast speed.
1. Cutter line lengths are too
uneven.
2. Loose hardware.
CORRECTION
1. Connect spark plug wire.
2. Prime engine.
3. Add fuel to the fuel tank.
4. See Engine Manual.
5. Wait several minutes before
6. Replace or regap spark plug.
7. Drain fuel tank and refill with
8. Clean debris screen and
9. Clean carburetor or fuel line.
10.Replace air filter or
11. See Engine Manual or
1. Clean engine screen and
2. See Engine Manual or
1. Set engine throttle to Fast
1. Trim or adjust cutter line to
2. Check all bolts and nuts,
GB - 18
attempting to start.
fresh gasoline.
cooling fins.
See Engine Manual.
precleaner.
contact your dealer.
cooling fins.
contact your dealer.
position.
equal lengths. Replace if
necessary.
including engine mounting
hardware, for tightness.