1990 Johnson Evinrude "ES" 9.9 thru 30 Service Repair Manual, P/N 507871, Page 15Get this manual
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Engine Specifications
Stroke Standard
2.1875-2.1883 in (55,56 -55,58
Crankshaft Dimensions:
Journal
0 .8757-0.8762 in (22,24-22,26 .8120-0 .81