Yamaha Marine Outboards Factory Service / Repair/ Workshop Manual 225G 250B L250B, Page 219Get this manual

Yamaha Marine Outboards Factory Service / Repair/ Workshop Manual 225G 250B L250B, Page 219

SHIMMING (COUNTER ROTATION MODELS) (EXCEPT FOR USA AND CANADA)
SELECTING THE REVERSE GEAR SHIMS

NOTE: Select the shim thickness (T1) by using the specified measurement(s) and the calculation formula6680