Lubrication Points - Yamaha F20A Service Manual

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Spark plug gap a

Out of specification → Regap.

Spark plug gap:

0.9 ~ 1.0 mm (0.035 ~ 0.039 in)

17.2 Nm (1.7 m • kg, 12.6 ft • lb)

Before installing the spark plug, clean the

gasket surface and spark plug surface.

Also, it is suggested to apply a thin film of

anti-seize compound to the spark plug

threads to prevent thread seizure.

If a torque wrench is not available, a good

estimate of the correct tightening torque

is to finger tighten a the spark plug and

then tighten it another 1/4 to 1/2 of a

Always use a new spark plug gasket.

Lubrication points

Water resistant grease