BAR AND CHAIN COMBINATIONS
Chain specifications: 0.0325 pitch, .05 in. chain gauge |
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Length of Bar | Guide Bar Part Number | Chain Part Number | Drive Links |
20 in. | 310629001 | 900920027 | 78 link |
18 in. | 310628001 | 901430001 | 72 link |
TROUBLESHOOTING
Problem | Possible Cause | Solution |
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Engine will not | No spark. | Clean or replace spark plug. Reset spark plug gap. Refer |
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start. [Make sure |
| to Spark Plug Replacement earlier in this manual. |
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ignition switch is in | Engine is flooded. | With the ignition switch OFF, remove spark plug. Move |
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the RUN ( l ) posi- |
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tion.] |
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| choke lever to RUN position (pushed in completely) and |
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| pull starter cord 15 to 20 times. This will clear excess |
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| fuel from engine. Clean and reinstall spark plug. Set igni- |
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| tion switch to RUN ( l ) position. Push and fully release |
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| primer bulb 7 times. Pull starter three times with choke |
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| lever at RUN. If engine does not start, move choke lever |
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| to FULL CHOKE and repeat normal starting procedure. |
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| If engine still fails to start, repeat procedure with a new |
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| spark plug. |
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Engine starts but | Carburetor requires | Contact an authorized service center for carburetor |
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will not accelerate | “L” (Low Jet) | adjustment. |
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properly. | adjustment. |
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Engine starts, then | Carburetor requires | Contact an authorized service center for carburetor |
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dies. |
| “L” (Low Jet) | adjustment. |
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| adjustment. |
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Engine starts but | Carburetor requires | Contact an authorized service center for carburetor |
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will not run proper- | “H” (High Jet) | adjustment. |
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ly at high speed. | adjustment. |
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Engine does not | Lubricant/fuel | Use fresh fuel and the correct |
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reach | full speed | mixture incorrect. | ratio. |
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and/or | emits ex- | Air filter is dirty. | Clean air filter. Refer to Cleaning the Air Filter in the |
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cessive smoke. |
| Maintenance section of this manual. |
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| Spark arrestor | Clean spark arrestor screen. Refer to Inspecting/Clean- |
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| screen is dirty. | ing the Spark Arrestor Screen in the Maintenance sec- |
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| tion of this manual. |
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| Carburetor requires | Contact an authorized service center for carburetor |
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| “H” (High Jet) | adjustment. |
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| adjustment. |
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Page 38 — English
