Honda BF35A-BF45A Outboard Motors Shop Manual., Page 124Get this manual
INSPECTION For pistons, crankshaft, and cylinder inspection, measure the followingIf needed, replace them
PISTON SKIRT O.DMeasure and record the piston O.Da point (0.4 in) from the bottom, and 90 the piston pin boreSTANDARD SERVICE LIMIT
PISTON PIN HOLE I.D
STANDARD 18.002-1 8.008 f0.7087-0.7090 in)
SERVICE LIMIT 17.96 rnm (0,707 in)