Troubleshooting
Troubleshooting
Important: It is essential that all operator safety mechanisms be connected and in proper operating condition prior to mower use.
When a problem occurs, do not overlook the simple causes. For example: starting problems could be caused by an empty fuel tank.
The following table lists some of the common causes of trouble. Do Not attempt to service or replace major items or any items that call for special timing of adjustments procedures (such as valves, governor, etc.). Have this work done by your Engine Service Dealer.
Note: When disconnecting electrical connectors Do Not pull on the wires to separate the connectors.
Problem |
| Possible Cause |
| Corrective Action |
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Starter does not crank (Electric Start Units). | 1. | PTO is engaged. | 1. | Disengage the PTO. |
| 2. | Speed control lever is are not in neutral | 2. | Ensure the speed control lever is in the |
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| lock position. |
| neutral lock position. |
| 3. | OPC levers are released. | 3. | Depress OPC levers. |
| 4. | Battery does not have a full charge. | 4. | Charge the battery. |
| 5. | Electrical connections are corroded, loose | 5. | Check the electrical connections for |
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| or faulty. |
| good contact. Clean connector terminals |
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| thoroughly with electrical contact cleaner, |
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| apply dielectric grease and reconnect. |
| 6. | Fuse is blown. | 6. | Replace the blown fuse. |
| 7. | Relay or switch is defective. | 7. | Contact an Authorized Service Dealer. |
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Engine will not start, starts hard, or fails to | 1. | Fuel tank is empty. | 1. | Fill the fuel tank. |
keep running. | 2. | Fuel shutoff valve is closed. | 2. | Open the fuel shutoff valve. |
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| 3. | The throttle and choke are not in the | 3. | Be sure the throttle control is midway |
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| correct position. |
| between the “SLOW” and “FAST” |
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| positions, and the choke is in the “ON” |
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| position for a cold engine or the “OFF” |
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| position for a warm engine. |
| 4. | Dirt in fuel filter. | 4. | Replace the fuel filter. |
| 5. | Dirt, water, or stale fuel is in the fuel | 5. | Contact an Authorized Service Dealer. |
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| system. |
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| 6. | Air cleaner is dirty. | 6. | Clean or replace the air cleaner element. |
| 7. | Electrical connections are corroded, loose | 7. | Check the electrical connections for |
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| or faulty. |
| good contact. Clean connector terminals |
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| thoroughly with electrical contact cleaner, |
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| apply dielectric grease and reconnect. |
| 8. | Relay or switch is defective. | 8. | Contact an Authorized Service Dealer. |
| 9. | Faulty spark plug. | 9. | Clean, adjust or replace spark plug. |
| 10. | Spark plug wire is not connected. | 10. | Check the spark plug wire connection. |
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Engine loses power. | 1. | Engine load is excessive. | 1. | Reduce the ground speed. |
| 2. | Air cleaner is dirty. | 2. | Clean or replace the air cleaner element. |
| 3. | Oil level in the crankcase is low. | 3. | Add oil to the crankcase. |
| 4. | Cooling fins and air passages for the | 4. | Remove the obstructions from the cooling |
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| engine are plugged. |
| fins and air passages. |
| 5. | Vent hole in the fuel cap is plugged. | 5. | Clean or replace the fuel cap. |
| 6. | Dirt in fuel filter. | 6. | Replace the fuel filter. |
| 7. | Dirt, water, or stale fuel is in the fuel | 7. | Contact an Authorized Service Dealer. |
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| system. |
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Engine overheats. | 1. | Engine load is excessive. | 1. | Reduce the ground speed. |
| 2. | Oil level in the crankcase is low. | 2. | Add oil to the crankcase. |
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