1996-2006 Yamaha 115-140HP Outboards Service Manuals, Page 839Get this manual

1996-2006 Yamaha 115-140HP Outboards Service Manuals, Page 839

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INSP ADJ

Adjustment steps (1) Remove all of the spark plugs(2) Remove the intake silencer(3) Install the dial gauge into cylinder #1's spark plug hole(4) Slowly turn the flywheel magnet a