UMS 5-125cc CAM GEAR WITH BEARING

Replacement cam gear with bearing for the UMS 5-125cc, the five-cylinder 125cc four-stroke radial from UMS.

Function: it is the cam gear with its bearing fitted, timing the valve train.

The reason this ends up on an order: supplied with the bearing so the gear runs on a matched surface rather than an old, worn one.

Fitting note: Check backlash and re-time the engine after fitting.