1983 Yamaha 30EN Outboards Service Manual, Page 108Get this manual
NOTE: _ Use care not to bend the drive shaft, since it is longForward gear taper roller bearing
If gear backlash must be adjusted, proceed to the next section before installing the forward gear bearing raceaInstall shim(s) having the same thickness as one(s) removed in disassembling 'in the gear case, and install the outer raceScrew the drive rod attachment over the driver rod, install the driver head, and drive in the outer race
4Shift cam Install the boot on the shift rod, install the shift cam so that its machined surface faces toward the gear, and insert the boot into the upper casing and hold it with the bracket