Maintenance (continued)
10/15-Hour Maintenance
Every 10 to 15 hours of operation:
CAUTION!
Before removing the spark plug, clean the area around the plug to prevent dirt and debris from getting into the engine’s internal parts.
■Remove and clean the spark plug. Adjust the spark plug electrode gap to 0.024 - 0.028 inch (0.6 - 0.7 mm). If the spark plug must be replaced, use only an NGK CMR5H or equivalent resis- tor type spark plug of the correct heat range. See Figure 14.
NOTE:
The NGK CMR5H also meets the requirements for electro magnetic com- pliance (EMC).
Clean the spark plug | ||
and check the gap at | ||
the electrode. | ||
| ||
Figure 14 |
|
50-hour Maintenance
Every 50 hours of operation (more frequently in dusty or dirty conditions):
. Remove and clean the cylinder cover and clean dirt from the cylinder fins.
. Use a hooked wire to extract the fuel filter from inside the fuel tank. See Figure 15.
CAUTION!
Make sure you do not pierce the fuel line with the end of the hooked wire. The line is delicate and can be damaged easily.
3.Remove and replace the filter element. Before reinstalling the new filter ele- ment, inspect the condition of all the fuel system components (fuel
Hooked
Wire
Filter Element
Figure 15
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