troubleshooting
Problem | Possible Cause | Solution |
Engine will not start. | No spark. | Check spark. Remove spark plug. Reattach |
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| the spark plug cap and lay spark plug on |
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| metal cylinder. Pull the starter rope and |
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| watch for spark at spark plug tip. If there |
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| is no spark, repeat test with a new spark |
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| plug. |
| No fuel. | Push primer bulb until bulb is full of fuel. |
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| If bulb does not fill, primary fuel delivery |
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| system is blocked. Contact a servicing |
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| dealer. If primer bulb fills, engine may be |
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| flooded, proceed to next item. |
| Engine is flooded. | Remove spark plug, turn unit so spark plug |
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| hole is aimed at the ground. Rotate the |
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| choke dial to “RUN” position and pull starter |
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| cord 10 to 15 times. This will clear excess |
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| fuel from engine. Clean and reinstall spark |
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| plug. Pull starter three times with choke dial |
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| at “RUN”. If engine does not start, rotate |
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| choke dial to “FULL CHOKE” position and |
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| repeat normal starting procedure. If engine |
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| still fails to start, repeat procedure with a |
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| new spark plug. |
| Starter rope pulls harder now than when | Contact a servicing dealer. |
| new. |
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Engine starts but will not accelerate. | Engine requires approximately three | Allow engine to completely warm up. If |
| minutes to warm up. | engine does not accelerate after three |
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| minutes, contact a servicing dealer. |
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Engine starts but will only run at high speed | Carburetor requires adjustment. | Contact a servicing dealer. |
at half choke. |
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Engine does not reach full speed and emits | Check lubricant fuel mixture. | Use fresh fuel and the correct |
excessive smoke. |
| lubricant mix. |
| Air filter is dirty. | Clean air filter. Refer to Cleaning the Air |
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| Filter Screen earlier in this manual. |
| Spark arrestor screen is dirty. | Contact a servicing dealer. |
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Engine starts, runs, and accelerates but | Idle speed screw on carburetor needs | Turn idle speed screw clockwise to increase |
will not idle. | adjustment. | idle speed. See figure 12. |
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idle speed
screw
Fig. 12
Page 15
