1988-1995 Mercury Force 5HP Outboards Service Manual, 90-823263 793, Page 169Get this manual

1988-1995 Mercury Force 5HP Outboards Service Manual, 90-823263 793, Page 169

12Measure piston pin micrometer bore with

NOTE: Piston pin must fit snugly in pin bore
13Measure piston ring end gap Insert new piston ring just above exhaust port
NOTE: Use one of the pistons to slide ring in