Engine Rebuild

1985 RZ350

1985 California RZ350

The clutch is a pretty simple design. Basically the way the clutch works is that plain steel plates and plates with cork faces are stacked one after the other and held together by a clutch basket and clutch center. The plain steel plates have grooves in the inside that slide in the clutch center which is directly connected to the transmission and rear wheel. The cork plates have grooves that slide in the clutch basket which is directly connected to the crank. When the clutch spring pressure is removed by engaging the clutch the series of plates can slide by each other. When the pressure is slowly increased by releasing the clutch lever, the plates start to slide less and less past each other until the eventually rotate together

This section shows how to install a clutch on a bare transmission shaft. Please note that the kickstart idler gear/tachometer drive gear must be installed before installing the clutch.


The first item to put in place after the cases have been put back together is this bearing retainer. I use Loctite on both the screws just to be sure.