Suzuki 30-40HP outboard motors Service Manual, Page 18Get this manual
Suzuki DT30C (After 1987) of shims (28 and 55) to obtain specified backlashAfter obtaining the proper backlash, check pinion gear-to-forward gear mesh pattern Add and subtract equally from shims (28 and 55) to obtain correct mesh pattern while maintaining the correct forward gear-to-pinion gear backlashAssembled propeller shaft end play should be 0.2-0.4 mm (0.008of shim (31) 0.016 inAdjust to obtai the specified propeller shaft end playRecheck pinion gear backlashIf necessary, adjust thickness of reverse gear shim (33) so backlash is the same as previously adjusted forward gear-to-