Mercury Mariner 25HP 4-Stroke Outboard Service Manual 1997, Page 159Get this manual

Mercury Mariner 25HP 4-Stroke Outboard Service Manual 1997, Page 159

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Piston Pin 1 Measure piston pin diameterReplace piston pin if out of specification

1 Measure pi ston ring end gap clearanceReplace piston ring if out of specification
2 Place the pi