INSP

ELECTRICAL/SPARK PLUG INSPECTION ADJ

EC370000

ELECTRICAL

EC371001

SPARK PLUG INSPECTION

1.Remove:

●Spark plug

2.Inspect:

●Electrode 1 Wear/damage → Replace.

●Insulator color 2

Normal condition is a medium to light

tan color.

Distinctly different color → Check the engine condition.

NOTE:

When the engine runs for many hours at low speeds, the spark plug insulator will become sooty, even if the engine and carburetor are in good operating condition.

3.Measure:

●Plug gap a

Use a wire gauge or thickness gauge. Out of specification → Regap.

Spark plug gap:0.6 ~ 0.7 mm (0.02 ~ 0.03 in)Standard spark plug:CR6HSA (NGK)U20FSR-U (DENSO)

4.Clean the plug with a spark plug cleaner if necessary.

5.Tighten:

● Spark plug

13 Nm (1.3 m · kg, 9.4 ft · lb)

T.

R.

NOTE:

●Before installing a spark plug, clean the gas- ket surface and plug surface.

●Finger-tighten a the spark plug before torquing to specification b.

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