2007-2009 Yamaha F15/F20 Outboard Service Manual, Page 306Get this manual
2) CLAMP BRACKET i) MANUAL TILT MODEL The mount hole location is different from previous F15 (66M)CL 70.5 (2.8) 70.5 (2.8)
76.5 (3.0) 187.5 (7.4)
32 (1.3) 67 (2.6)
95.3 (3.8) 110 (4.3)
ii) POWER TILT MODEL This is the same bracket as previous F15 (66M)111 (4.4) 95.3 (3.8) CL