Access Door
Figure 28
ADJUST OR REPLACE THE SPARK PLUG
Check the spark plug every twenty-five (25) hours. Replace the
spark plug if the electrodes are pitted or burned or if the porcelain
is cracked.
1. Open the access door (A, Figure 28) on the control panel.
2. The spark plug and wire are now visible.
3. Remove the spark plug wire.
4. Clean spark plug and reset gap periodically.
5. Clean area around spark plug base before removal, to prevent
dirt from entering engine.
6. Replace spark plug if electrodes are pitted or burned or if
porcelain is cracked.
7. Clean spark plug by carefully scraping electrodes (do not
sandblast or use wire brush).
8. Be sure spark plug is clean and free of foreign material. Check
electrodes gap with a wire feeler gauge and reset gap to 0.030"
(0.76 mm) if necessary (see Figure 29).
9. Before installing spark plug, coat threads lightly with graphite
grease to insure easy removal.
10. Tighten plug firmly into engine. If torque wrench is available,
tighten plug to 18-23 ft-lbs (24.2-31.2 Nm).
25
Replace Spark Plug
Figure 29
A
MAINTENANCE
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