TROUBLESHOOTING (ENGINE)
Troubleshooting (Engine) - continued
Symptom | Possible Problem | Solution | |
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| Air cleaner dirty? | Clean or replace air cleaner. | |
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Weak in power, compression is proper and | Improper level in carburetor? | Check fl oat adjustment, rebuild carburetor. | |
does not misfi re. | Defective spark plug? | Clean or replace spark plug. | |
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| Improper spark plug? | Set to proper gap. | |
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| Water in fuel system? | Flush fuel system and replace with correct | |
Weak in power, compression is proper but | type of fuel. | ||
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misfi res. | Dirty spark plug? | Clean or replace spark plug. | |
| Ignition coil defective? | Replace ignition coil. | |
| Spark plug heat value incorrect? | Replace with correct type of spark plug. | |
| Wrong type of fuel? | Replace with correct type of fuel. | |
Engine overheats. | Cooling fi ns dirty? | Clean cooling fi ns. | |
Intake air restricted? | Clear intake of dirt and debris. Replace air | ||
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| cleaner elements as necessary. | ||
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| Oil level too low or too high? | Adjust oil to proper level. | |
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| Governor adjusted incorrectly? | Adjust governor. | |
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Rotational speed fl uctuates. | Governor spring defective? | Replace governor spring. | |
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| Fuel fl ow restricted? | Check entire fuel system for leaks or clogs. | |
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Recoil starter malfunctions. (if applicable) | Recoil mechanism clogged with dust and dirt? | Clean recoil assembly with soap and water. | |
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Spiral spring loose? | Replace spiral spring. | ||
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| Loose, damaged wiring? | Ensure tight, clean connections on battery | |
| and starter. | ||
Starter malfunctions. |
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Battery insuffi ciently charged? | Recharge or replace battery. | ||
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| Starter damaged or internally shorted? | Replace starter. | |
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| Check and clean valves. Check muffl er and | ||
| replace if necessary. | ||
Burns too much fuel. |
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Wrong spark plug? | Replace spark plug with manufacturer's | ||
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| suggested type. | ||
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Exhaust color is continuously "white". | Lubricating oil is wrong viscosity? | Replace lubricating oil with correct viscosity. | |
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Worn rings? | Replace rings. | ||
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| Air cleaner clogged? | Clean or replace air cleaner. | |
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| Choke valve set to incorrect position? | Adjust choke valve to correct position. | |
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Exhaust color is continuously "black". | Carburetor defective, seal on carburetor | Replace carburetor or seal. | |
broken? | |||
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| Poor carburetor adjustment, engine runs too | Adjust carburetor. | |
| rich? | ||
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| ON/OFF device not activated ON? | Turn on ON/OFF device. | |
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Will not start, no power with key "ON". (if | Battery disconnected or discharged? | Check cable connections. Charge or replace | |
applicable) | battery | ||
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| Ignition switch/wiring defective? | Replace ignition switch. Check wiring. | |
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PAGE 32 — MVH408GH PLATE COMPACTOR • OPERATION AND PARTS MANUAL — REV. #0 (03/25/14)