High and Low Speed Needle
The high and low speed needle is fixed and cannot be adjusted.
Spark Plug Maintenance
If the engine becomes hard to start or if idle speed is unstable, inspect the spark plug according to the following procedures.
1.Remove the spark plug. Refer to the procedures on page 13, If the Engine Does Not Start…
2.Clean the electrode with a wire brush. If necessary, adjust the electrode gap. The gap should be 0.6mm. See Figure 24.
0.6mm
Figure 24
Cleaning Cylinder Fins
WARNING!
Before cleaning cylinder fins, make sure the engine is cold.
Dust and debris may accumulate between the cylinder fins and can lead to engine overheating. In order to maintain efficient service, cylinder fins should be cleaned once every month.
Checking the Drive Belt
The transmission belt tends to loosen and wear after a period of operation and should be checked and adjusted regularly according the following procedures. If the belt is worn, torn, cracked, scratched or otherwise damaged, replace it with a new one immediately.
Adjusting Belt Tension
(Figure 25)
1.Loosen the two bolts in the belt guard by one turn.
2.Turn the tension screw so the washer aligns with the mark on the clutch cover.
3.Tighten the two bolts in the belt guard.
EC7500.34 |
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Tension | Mark | Bolt | |
Screw | |||
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Clutch | Belt Guard |
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Cover |
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| Washer |
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Figure 25 |
| EC7500.34A | |
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| 19 |
