Yamaha 25BMH 30HMH Factory Service Manual, Page 248Get this manual
CRANKSHAFT AND CYLINDER BODY
Standard Cylinder bor bore diameter "D" lim Taper limit "T" ound Out of round lim limit "R"
Wear limit ear lim
7272.0 -72.02 mm 72.10 mm(2.8386 in) in) 0.08 mm (0.0 031 in) 0.05 mm (0.0 020 in)