Troubleshooting,
Adjustment, & Service
TROUBLESHOOTING
PROBLEM | CAUSE | REMEDY | |
Engine will not turnover or start. | 1. | PTO lever in the engaged position. | Place in disengaged position. |
| 2. | Out of fuel. | If the engine is hot, allow it to cool, then refill the |
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| fuel tank. |
| 3. | Engine flooded. | Disengage choke. |
| 4. | Battery terminals require cleaning. | See Battery Maintenance Section. |
| 5. | Clogged fuel filter. | Turn off fuel and replace filter. |
| 6. | Battery discharged or dead. | Recharge or replace. |
| 7. | Wiring loose or broken. | Visually check wiring & replace broken or frayed |
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| wires. Tighten loose connections. |
| 8. | Solenoid or starter motor faulty. | See your dealer. |
| 9. | Safety interlock switch faulty | See your dealer. |
| 10. | Spark plug(s) faulty, fouled or | Clean and gap or replace. See engine manual. |
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| incorrectly gapped. |
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| 11. | Water in fuel. | Drain fuel & refill with fresh fuel. Replace fuel filter. |
| 12. | Gas is old or stale. | Drain fuel & refill with fresh fuel. Replace fuel filter. |
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Engine will not stay running while | 1. | Safety bar on handlebar assembly | Press and hold safety bar wile operating unit |
operating machine |
| released with blade clutch engaged. |
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| 2. | Safety bar not fully depressing | See your dealer. |
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| safety switch. |
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| 3. | Choke staying on. | Throttle down slightly after starting to disengage |
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| automatic choke. |
| 4. | Low or no fuel. | Add fuel. |
| 5. | Fuel valve shut off. | Turn fuel valve on. |
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Engine starts hard or runs poorly. | 1. | Fuel mixture too rich. | Clean air filter. Check choke adjustment |
| 2. | Spark plug(s) faulty, fouled, | Clean and gap or replace. See engine manual. |
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| or incorrectly gapped. |
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| 3. | Choke engaged. | Throttle down slightly after starting to disengage |
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| automatic choke. |
| 4. | Fuel filter dirty. | Replace fuel filter. |
| 5. | Air filter dirty. | Replace air filter. |
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Engine knocks. | 1. | Low oil level. | Check/add oil as required. |
| 2. | Using wrong grade oil. | See engine manual. |
Excessive oil consumption. | 1. | Engine running too hot. |
| 2. | Using wrong weight oil. |
| 3. | Too much oil in crankcase. |
Clean engine fins, blower screen and air cleaner. See engine manual.
Drain excess oil.
Engine exhaust is black. | 1. | Dirty air filter. | Replace air filter. See engine manual. |
| 2. | Choke closed. | Open choke. |
Engine runs, but mower will not drive.
1.Traction drive control not engaged. Engage traction drive control.
2. | Drive belt is broken. | See Drive Belt Replacement. |
3. | Drive belt slips. | See cause and remedy below. |
Engine stalls easily with | 1. | Engine speed too slow. | Set to full throttle. |
mower engaged. | 2. | Ground speed too fast. | Slow down. |
| 3. | Carburetor improperly adjusted. | See Engine Manual. |
| 4. | Cutting height set too low. | Cut tall grass at maximum cutting height during |
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| first pass. |
| 5. | Discharge chute jamming with | Cut grass with discharge pointing toward |
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| cut grass. | previously cut area. |
| 6. | Engine not up to operating | Run engine for several minutes to |
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| temperature. |
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| 7. | Starting mower in tall grass. | Start the mower in a cleared area. |
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