2009 Yamaha F40 Outboard Service Manual, Page 280Get this manual
Forward gear shim (T1) selection chart
0.40 20 (1100 mm) 20 25 30 35 40 45 50 55 60 25 30 35 40 45 50 55 60
Forward gear shim (T1) selection chart
0.40 20 (1100 mm) 20 25 30 35 40 45 50 55 60 25 30 35 40 45 50 55 60