47
Problem Possible Cause Corrective Action
The engine loses power. 1. The engine load is excessive.
2. The air cleaner is dirty.
3. The oil level in the crankcase is
low.
4. The cooling fins and air passages
under the engine blower housing
are plugged.
5. The spark plug(s) is pitte d,
fouled, or the gap is incorrect.
6. The vent in the fuel cap is closed.
7. There is dirt in the fuel filter.
8. Dirt, water, or stale fuel is in the
fuel system.
9. There is incorrect fuel in the fuel
tank.
1. Reduce ground speed.
2. Clean the air cleaner
element.
3. Add oil to the crankcase.
4. Remove the obstruction
from the cooling fin s and
air passages.
5. Install a new, correctly
gapped spark plug(s).
6. Open the vent in the fuel
cap.
7. Replace the fuel filter.
8. Contact an Authorized
Service Dealer.
9. Drain the tank and replace
the fuel with the proper
type.
The machine does not
drive.
1. The drive belts are worn, loose, or
broken.
2. The drive belts are off of the
pulleys.
3. The drive is in bypass mode.
1. Contact an Authorized
Service Dealer.
2. Contact an Authorized
Service Dealer.
3. Take machine out of
bypass mode. Refer to
“Pushing the Machine by
Hand.”
There is abnormal
vibration.
1. The engine mounting bolts are
loose.
2. The engine pulley, idler pulley, or
blade pulley is loose.
3. The engine pulley is damaged.
4. The cutting blade(s) is/are bent or
unbalanced.
5. A blade is loose.
6. A blade bushing is missing.
7. A blade spindle is bent.
1. Tighten the engine
mounting bolts.
2. Tighten the appropriate
pulley.
3. Contact an Authorized
Service Dealer.
4. Install a new cutting
blade(s).
5. Tighten the blade mounting
bolt and inspect the blade
spring disk washers for
damage (See Servicing the
Cutting Blades, page 37).
6. Install a blade bushing
(See Figure 38, page 39).
7. Contact an Authorized
Service Dealer.
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