O.S. Engine OS26816108 Disc Valve Pin - Direct Service Part for 60R/61VR/65VR  [OS26816108]

Disc valve pin replacement for 60R, 61VR and 65VR

This disc valve pin is an RC carburettor replacement designed to re-establish proper disc valve positioning on O.S. Engine 60R, 61VR and 65VR units. It locates the disc valve within the carburettor so it can open and close cleanly during throttle changes, supporting steady fuel delivery and predictable throttle reaction.

Fitment is limited to the engine codes listed in the product title; confirm your engine casting or consult the manual before purchasing to ensure the pin suits your carburettor layout. The part functions as a service replacement for maintenance and tuning tasks rather than as a power upgrade.

Practical installation pointers:

• Access the carburettor by taking off the carb top and diaphragm plate as directed in the engine service guide, and avoid introducing grit to the components.
• Remove the existing pin, carry over any seals or bushings that remain serviceable, and fit the replacement ensuring the disc valve travels freely without binding.
• After reassembly, conduct idle and throttle transition checks on the bench prior to any full-throttle runs to confirm correct seating and timing.