Timing chain guides for Viper 125-200 cc motorcycles and similar (China, Minsk). The guides (dampers) keep the timing chain taut and damp its oscillations so that the chain does not slap against the crankcase.
Replace them if the plastic or rubber is worn, there is noise and knocking in the valve train, or the chain sags. The guides are replaced together with the chain and the tensioner.
Timing chain guides Minsk, for 125-150 cc.
