TROUBLESHOOTING
IF THESE SOLUTIONS DO NOT SOLVE THE PROBLEM, CONTACT YOUR AUTHORISED SERVICE DEALER.
PROBLEM | POSSIBLE CAUSE | SOLUTION | |||
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Engine will not start: | 1. No spark. | 1. | Check spark. Remove sparking plug. Reattach | ||
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| the sparking plug cap and lay sparking plug on | |
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| metal cylinder. Pull the starter rope and watch | |
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| for spark at sparking plug tip. If there is no | |
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| spark, repeat test with a new sparking plug. | |
| 2. | No fuel. | 2. | Push primer bulb until bulb is full of fuel. If | |
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| bulb does not fill, primary fuel delivery system | |
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| is blocked. Contact a servicing dealer. If | |
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| primer bulb fills, engine may be flooded (see | |
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| next item). | |
| 3. | Flooded engine. | 3. | Remove sparking plug, turn trimmer so | |
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| sparking plug hole is aimed at the ground. | |
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| Move choke lever to “RUN” and pull starter | |
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| cord 10 to 15 times. This will clear excess fuel | |
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| from engine. Clean and reinstall sparking plug. | |
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| Pull starter three times with choke lever at | |
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| “RUN”. If engine does not start, move choke | |
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| lever to “CHOKE” and repeat normal starting | |
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| procedure. If engine still fails to start, repeat | |
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| procedure with a new sparking plug. | |
| 4. | Starter rope pulls harder now than | 4. | Contact a servicing dealer. | |
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| when new. |
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Engine starts but will not | Carburettor requires adjustment. | Contact a servicing dealer. | |||
accelerate: |
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Engine starts but will only | Carburettor requires adjustment. | Turn mixture needle anticlockwise 1/16 turn. See | |||
run at high speed at half |
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| Figure 18. | ||
choke: |
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Engine does not reach full | 1. | Check oil fuel mixture. | 1. | Use fresh fuel and the correct | |
speed and emits excessive | 2. | Air filter dirty. | 2. | Clean air filter. Refer to “Replacing and | |
smoke: |
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| Cleaning Air Filter” earlier in this manual. | |
| 3. | Carburettor requires adjustment. | 3. | Turn mixture needle clockwise 1/16 turn. See | |
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| Figure 18. | |
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Engine starts, runs, and | Carburettor requires adjustment. | Turn idle speed screw clockwise to increase idle | |||
accelerates but will not |
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| speed. See Figure 18. | ||
idle: |
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String will not advance: | 1. | String welded to itself. | 1. | Lubricate with silicone spray. | |
| 2. | Not enough string on spool. | 2. | Install more string. Refer to “String Replace- | |
| 3. | String worn too short. |
| ment” earlier in this manual. | |
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| 3. | Pull strings while alternately pressing down on | |
| 4. | String tangled on spool. |
| and releasing spool retainer. | |
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| 4. | Remove string from spool and rewind. Refer to | |
| 5. | Engine speed too slow. |
| “String Replacement” earlier in this manual. | |
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| 5. | Advance string at full throttle. | |
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15
