1995 Johnson/Evinrude Outboards 40 thru 55 2-Cylinder Service Repair Manual P/N 503148, Page 14Get this manual
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Engine Specifications 25,
Displacement
Stroke Standard
3.1870-3.1880 in(80,95-80,98 )
Crankshaft Dimensions:
Journal
1.4986-1.499