MVC-64E/EW — TROUBLESHOOTING (ENGINE)
TABLE 8. ENGINE TROUBLESHOOTING (CONTINUED)
SYMPTOM | POSSIBLE CAUSE | SOLUTION | |
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| Air cleaner not clean? | Clean or replace air cleaner | |
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| Improper level in carburetor? | Check float adjustment, | |
"Weak in power" compression is proper | carbureator. | ||
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and does not misfire. |
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Defective Spark plug? | Clean or replace spark plug. | ||
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| Defective Spark plug? |
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| Water in fuel system? | Flush fuel system, and replace | |
| with correct type of fuel. | ||
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"Weak in power" compression is proper |
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Dirty spark plug? | Clean or replace spark plug. | ||
but misfires. | |||
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| Ignition coil defective? | Replace ignition coil. | |
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| Spark plug heat value improper? | Replace with correct type of | |
| spark plug. | ||
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Engine overheats. |
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Correct type of fuel? | Replace with correct type of fuel | ||
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| Cooling fins dirty? | Clean cooling fins. | |
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| Governor adjusted correctly? | Adjust governor. | |
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Rotational speed fluctuates. | Governor spring defective? | Replace governor spring. | |
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| Fuel flow restricted? | Check entire fuel system for leaks | |
| or clogs. | ||
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| Recoil mechanism clogged with dust and | Clean recoil assembly with soap | |
Recoil starter malfunction. | dirt? | and water. | |
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| Sprial spring loose? | Replace sprial spring. | |
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