2009 Yamaha F40 Outboard Service Manual, Page 222Get this manual
Quality of the image is intentionally reduced!
Camshaft and valve Camshaft journal diameter #1 c: 36.92536.945 mm (1.45371.4545 in) Camshaft journal diameter #2 d, #3 e: 36.93536.955 mm (1.45411.4549 in) Cylinder head journal inside diameter f: 37