1995 Johnson Evinrude "EO" 9.9 thru 30, 2-Cylinder Service Manual, P/N 503146, Page 174Get this manual
C03082= ==:-i 3084
14319Measure the piston diameter in at leasttwo places to verify piston conditionMake your measurements Va to 14 in(3,2 to 6,4 mm) above the bottom edge of the piston skirtThese engines have pistons of several different manufacturersUse the chart below to visually identify the piston you are measuring and select the appropriate dimensions The major diameter ofthe piston is measured 90 from the wrist pin hole centerlineSee the chart The minor diameter of the piston is measured in line with the wrist pin hole centerlineThe minor diameter must be smaller than the major diameter by the cam dimensionSee the chart,