1990 Johnson Evinrude "ES" 9.9 thru 30 Service Repair Manual, P/N 507871, Page 170Get this manual

1990 Johnson Evinrude "ES" 9.9 thru 30 Service Repair Manual, P/N 507871, Page 170

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144112 Use feeler gauge to check groove side clearance the lower square ringsInstall each square ring its pistonWith the ring fully seated in its groove, make several checks around the piston The side