Troubleshooting
Problem
Possible Cause
Corrective Action
1. The engine is too hot.
1. Shut off the engine and let it cool.
2. There is old fuel in the fuel tank.
2. Use new fuel.
3. The fuel-shutoff valve is not open
completely.
3. Open the fuel-shutoff valve.
4. The air cleaner is dirty.
4. Make sure that the air cleaner and
precleaner are clean. Replace if
necessary.
5. The battery is not charged.
5. Charge or replace the battery.
6. Incorrect fuel filters are being used or
the fuel filters are dirty.
6. Contact an Authorized Service Dealer.
7. The connections to the sensors
electronic-control unit (ECU) and fuel
injectors are not secured properly.
7. Contact an Authorized Service Dealer.
8. There is low voltage from the battery.
8. Ensure that you are using a good 12 V
battery and that it is fully charged.
The malfunction-indicator light (MIL)
comes on.
9. A fuse is blown.
9. Check and replace any blown fuses.
1. The blade-control switch (PTO) is
engaged.
1. Move the blade-control switch (PTO)
to the disengaged position.
2. The parking brake is disengaged.
2. Engage the parking brake.
3. The motion-control levers are not in
the N
EUTRAL
-
LOCK
position.
3. Ensure that the motion-control levers
are in the N
EUTRAL
-
LOCK
position.
4. The operator is not seated.
4. Sit on the seat.
5. The battery is dead.
5. Charge the battery.
6. The electrical connections are
corroded or loose.
6. Check the electrical connections for
good contact.
7. The fuse is blown.
7. Replace the fuse.
The starter does not crank.
8. The relay or switch is worn or
damaged.
8. Contact an Authorized Service Dealer.
1. The fuel tank is empty.
1. Fill the fuel tank.
2. The fuel-shutoff valve is closed.
2. Open the fuel-shutoff valve.
3. The oil level in the crankcase is low.
3. Add oil to the crankcase.
4. The throttle is not in the correct
position.
4. Be sure that the throttle control is
midway between the slow and fast
positions.
5. There is dirt in the fuel filter.
5. Replace the fuel filter.
6. There is dirt, water, or stale fuel in the
fuel system.
6. Contact an Authorized Service Dealer.
7. The air cleaner is dirty.
7. Clean or replace the air-cleaner
element.
8. The seat switch is not functioning
properly.
8. Check the seat-switch indicator.
Replace the seat if necessary.
9. The electrical connections are
corroded, loose, or damaged.
9. Check the electrical connections
for good contact. Clean the
connector terminals thoroughly with
electrical-contact cleaner, apply
dielectric grease, and make the
appropriate connections.
10. The relay or switch is worn or
damaged.
10. Contact an Authorized Service Dealer.
11. The spark plug is fouled or improperly
gapped.
11. Adjust or replace the spark plug.
The engine does not start, starts hard, or
fails to keep running.
12. The spark-plug wire is not connected.
12. Check the spark-plug wire connection.
71
Summary of Contents for Z Master 74926
Page 75: ...Notes...
