7.1
Section 7
Electrical System and Components
7
This section covers the operation, service, and repair of the electrical system and electrical system components.
WARNING: Electrical Shock
Never touch electrical wires or components while the engine is running. They can be sources of electrical shock.
Section 7
Electrical System and Components
Spark Plug
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¢ȱȱȱȱȱȱȱȱȱȱȱȱ
ȱȱĴǯ
ȱȱȱȱȱȱȱȱDZ
Type: Champion
®
RC12YC
Gap: 0.762 mm (0.030 in.)
Thread Size: 14 mm (0.551 in.)
Reach: 19.1 mm (3/4 in.)
Hex Size: 15.9 mm (5/8 in.)
Spark Plug Service
Yearly or every 100 hours of operation, remove the
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ȱȱȱȱȱȱ¢ǯȱ
ȱ ŗǯȱ ȱȱȱȱǰȱȱȱȱ
ȱȱȱȱȱȱȱȱȱȱ
ȱȱȱȱǯ
ȱ Řǯȱ ȱȱȱȱȱȱǯȱȱ
ȱȱȱȱȱȱȱǯ
DZȱ ȱȱȱȱȱȱȱȱȱ
ȱȱǯȱȱȱȱȱ
ȱȱȱȱȱȱȱȱ
ȱ¡ȱȱȱǯ
ȱ řǯȱ ȱȱȱȱȱȱȱǯȱȱ
ȱŝȬŗǯȱȱȱȱ¢ȱ¢ȱȱ
ȱȱǯȱȱȱȱȱȱ0.762
mm (0.030 in.).
ȱ Śǯȱ ȱȱȱȱȱȱ¢ȱǯȱȱ
ȱȱȱȱ24.5 N·m (217 in. lb.).
Inspection
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the cylinder head. The deposits on the tip are an
indication of the general condition of the piston rings,
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Feeler Gauge
Ground
Electrode
Spark Plug
Gap
Feeler Gauge
Ground
Electrode
Spark Plug
Gap
Figure 7-1. Spark Plug Gap.