Disc Valve Pin OS27216100 for O.S. Engine 61VR and 65VR Engines  [OS27216100]

Centre pin for disc valve assemblies on 61VR/65VR

This O.S. Engine disc valve pin is an RC carburettor spares item intended as a direct replacement for engines marked 61VR and 65VR. The pin locates the disc valve and should be replaced when wear or play is evident.

Use only with the engine models stated in the product name; verify the engine marking before fitting. During replacement, confirm the disc valve plate is seated correctly and that the pin is centred in the bore to avoid lateral binding. Clean mating surfaces of any deposits before reassembly.

In maintenance and tuning, a correctly fitted disc valve pin reduces unwanted movement of the disc valve, improving throttle predictability and helping to stabilise transitions across the RPM band. Replace it when rebuilding the carburettor or tracing throttle inconsistencies.