1988 Johnson Evinrude "CC" 9.9 thru 30 Service Repair Manual, P/N 507660, Page 126Get this manual
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Installation of Flywheel 1 Install the flywheel key: 9.9 thru 15: Install the key with outer edge parallel to taper of crankshaftcenterline of crankshaft and single upset mark facing down 9.915