TROUBLE SHOOTING
IF THESE SOLUTIONS DO NOT SOLVE THE PROBLEM CONTACTYOUR AUTHORIZED SERVICING DEALER.
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| PROBLEM |
| POSSIBLE CAUSE |
| SOLUTION |
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| Engine will not start: | 1. | No spark. | 1. | Check spark. Remove spark plug. Reattach the spark | |||||
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| plug cap and lay spark plug on metal cylinder. Pull the | ||||
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| starter rope and watch for spark at spark plug tip. If | ||||
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| 2. | No fuel. |
| there is no spark, repeat test with a new spark plug. | ||||
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| 2. | Push primer bulb until bulb is full of fuel. If bulb does | ||||||
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| not fill, primary fuel delivery system is blocked. | ||||
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| Contact a servicing dealer. If primer bulb fills, engine | ||||
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| 3. | Flooded engine. |
| may be flooded (see next item). | ||||
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| 3. | Remove spark plug, turn trimmer so spark plug hole | ||||||
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| is aimed at the ground. Move choke lever to “RUN” | ||||
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| and pull starter cord 10 to 15 times. This will clear | ||||
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| excess fuel from engine. Clean and reinstall spark | ||||
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| plug. Pull starter three times with choke lever at | ||||
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| “RUN”. If engine does not start, move choke lever to | ||||
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| “CHOKE” and repeat normal starting procedure. If | ||||
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| engine still fails to start, repeat procedure with a new | ||||
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| 4. | Starter rope pulls harder now than when new. |
| spark plug. | ||||
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| 4. | Contact a servicing dealer. | ||||||
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| Engine starts but will not acceler- | Carburetor requires adjustment. | *Turn "L" needle (A) counterclockwise 1/16 turn. If “L” low | |||||||
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| needle (A) can not be turned counterclockwise, do not | ||||||
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| force plastic limiter caps. Contact a servicing dealer. | |||||
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| Engine starts but will only run at | Carburetor requires adjustment. | *Turn "H" needle (B) counterclockwise 1/16 turn. If “H” high | |||||||
| high speed at half choke: |
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| needle (B) can not be turned counterclockwise, do not force | ||||||
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| plastic limiter caps. Contact a servicing dealer. | |||||
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| Engine does not reach full speed | 1. | Check oil fuel mixture. | 1. | Use fresh fuel and the correct | |||||
| and emits excessive smoke: | 2. | Air filter dirty. | 2. | Clean per instructions in Maintenance Section. | |||||
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| 3. | Carburetor requires adjustment. | 3. | Turn "H" needle (B) clockwise 1/16 turn. | ||||
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| 4. | Spark Arrestor Screen Dirty. | 4. | Contact a servicing dealer. | ||||
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| Engine starts, runs, and acceler- | Carburetor requires adjustment. | Turn idle speed screw (C) clockwise to increase idle speed. | |||||||
| ates but will not idle: |
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| String will not advance when using | 1. | String welded to itself. | 1. | Lubricate with silicone spray - use Homelite® string. | |||||
| the EZ Line™ tap advance system: | 2. | Not enough string on spool. | 2. | Install more string (see String Replacement). | |||||
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| 3. | String worn too short. | 3. | Pull strings while alternately pressing down on and | ||||
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| 4. | String tangled on spool. |
| releasing spool retainer. | ||||
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| 4. | Remove string from spool and rewind (see String Replace- | ||||||
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| 5. | Engine speed too slow. |
| ment). | ||||
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| 5. | Advance string at full throttle. | ||||||
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| Spool retainer hard to turn when | Screw threads dirty or damaged. | Clean threads and lubricate with grease - if no improve- | |||||||
| using EZ Line™ tap advance |
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| ment, replace spool retainer. | ||||||
| system: |
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| Grass wraps around driveshaft | 1. | Cutting tall grass at ground level. | 1. | Cut tall grass from the top down to prevent wrapping.. | |||||
| housing and stringhead: | 2. | Operating trimmer at part throttle. | 2. | Operate trimmer at full throttle. | |||||
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| Oil drips from muffler: | 1. | Operating trimmer at part throttle | 1. | Operate trimmer at full throttle. | |||||
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| 2. | Check oil/fuel mixture. | 2. | Use fresh fuel and the correct | ||||
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| 3. | Air filter dirty. | 3. | Clean per instruction in Maintenance Section. | ||||
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| 4. | Carburetor requires adjustment. | 4. | Turn "H" (B) needle clockwise 1/16 turn. | ||||
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C | * | Note: This engine complies with EPA (Environmental Protection Agency) and CARB |
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| (California Air Resource Board) regulations which require exhaust emission control. As |
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| a result, the carburetor adjustment needle(s) are equipped with plastic cap(s) that limit |
A |
| the rotation from the original factory adjustment. If your unit exhibits specific performance |
| problem(s) where the Trouble Shooting Section recommends a needle adjustment and you | |
B |
| are at the limit of adjustment, the unit should be taken to a factory authorized service center |
| for repair. |
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