2000-2005 Yamaha F40B Outboard Service Manual, Page 334Get this manual
SHIMMING (EXCEPT FOR USA AND CANADA)
Example: If is "22.30 mm" and "F" is "+5", then: T122.75 mm(+5)10022.30 mm22.75 mm0.0522.30 mm0.50 mm (0.020 in) If is "22.30 mm" and "F" is "_3", then: T122.75 mm(-3)10022.30 mm22.75 mm0.0322.30 mm0.42 mm (0.017 in) (3) Select the forward gear shim(s) (T1)Calculated numeral at 1100th place more than 0.00 0.02 0.05 0.08 or less 0.02 0.05 0.08 0.10 Rounded numeral 0.00 0.02 0.05 0.08