Suzuki DF25/DF30 Four Stroke Service Manual, Page 240Get this manual
10-16 LOWER UNIT PINION NUT Apply Thread Lock 1342 to the threads of the pinion nut before threading it onto the driveshaftTighten nut to the specified torquePinion nut18 N.m (1.8 kg-m, 13.0 lbft 99000-32050Thread Lock 1342 09921-29510Drive shaft holder CHECKING DRIVESHAFT THRUST PLAY Before installing reverse gear, driveshaft thrust play should be checked(See the "GEARS-SHIMMING AND ADJUSTMENTCHECKING DRIVESHAFT THRUST PLAY" section on page 10-26) 09951-09511Gear adjusting gauge