Honda BF50 (5HP) BF5A Outboard Motors Shop Manual., Page 51Get this manual
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HONDA BFBOeBF5A
60.00 mm (2.3622 in)
PISTON SKIRT O.DSTANDARD
59.985 mm (2.3616 in)
SERVICE LIMIT
59.92 (2.359 in)
PISTON-TO-CYLINDER CL