1998-2006 Yamaha F20/F25 Outboards Service Manual, Page 85Get this manual

1998-2006 Yamaha F20/F25 Outboards Service Manual, Page 85

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_ 3 Measure: Spark plug gap Out of specification
Spark plugs Spark plug: 17.2 Nm (1.7 kg, 12.6 ft Ib)

Before installing the spark plug, clean the gasket surface and spark plug surfa