| TROUBLESHOOTING | ||
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PROBLEM | CAUSE | REMEDY | |
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Engine will not start. | No spark. | Check spark. Remove spark plug. Reattach the spark plug cap and | |
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| lay spark plug on metal cylinder. Pull the starter rope and watch | |
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| for spark at spark plug tip. If there is no spark, repeat test with a | |
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| new spark plug. | |
| No fuel. | Push primer bulb until bulb is full of fuel. If bulb does not fill, primary | |
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| fuel delivery system is blocked. Contact a servicing dealer. If primer | |
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| bulb fills, engine may be flooded, proceed to next item. | |
| Engine is flooded. | Pull starter three times with choke lever at “RUN”. If engine does | |
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| not start, move choke lever to “START” and repeat normal starting | |
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| procedure. If engine still fails to start, repeat procedure with a new | |
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| spark plug. | |
| Starter rope pulls harder | Contact a servicing dealer. | |
| now than when new. |
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Engine starts but will | Engine requires approxi- | Allow engine to completely warm up. If engine does not accelerate | |
not accelerate. | mately three minutes to | after three minutes, contact a servicing dealer. | |
| warm up. |
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Engine starts but will | Carburetor requires | Contact a servicing dealer. | |
only run at high speed | adjustment. |
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at half choke. |
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Engine does not reach | Check oil fuel mixture. | Use fresh fuel and the correct | |
full speed and emits | Air filter is dirty. | Clean air filter. Refer to “Replacing and Cleaning Air Filter” earlier | |
excessive smoke. | |||
| in this manual. | ||
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| Spark arrestor screen is | Contact a servicing dealer. | |
| dirty. |
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Engine starts, runs, | Idle speed screw on | Turn idle speed screw clockwise to increase idle speed. | |
and accelerates but | carburetor |
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will not idle. |
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Bar and chain running | Check chain tension for | Tension chain. Refer to “Chain Tension” earlier in this manual. | |
hot and smoking. | overtight condition |
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| Chain oil tank empty | Check oil tank. | |
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Motor runs, but chain | Chain tension too tight. | Retension chain. Refer to “Chain Tension” earlier in this manual. | |
is not rotating. | Check guide bar and chain | Refer to “Replacing the Bar and Chain” earlier in this manual. | |
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| assembly. |
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| Check guide bar and chain | Inspect guide bar and chain for damage. | |
| for damage. |
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19