O.S. Engine OS26816108 Disc Valve Pin for 60R, 61VR, 65VR  [OS26816108]

Disc Valve Pin for 60R/61VR/65VR

This disc valve pin is an RC-scale carburettor replacement part designed to restore proper disc valve alignment on O.S. Engines 60R, 61VR, and 65VR models. It serves the basic role of locating the disc valve within the carburettor assembly so the valve can open and close reliably during throttle changes, helping maintain consistent fuel flow and throttle response in model engines.

Compatibility is limited to the engine codes listed in the model name, verify your engine casting or manual before ordering to ensure this part matches your carburettor layout. The pin is intended as a direct service item for hobby engine maintenance and tuning; it is not a performance upgrade by itself but a functional replacement that supports stable valve action.

Installation notes and practical tips:

• Access the carburettor by removing the carb top and diaphragm plate according to the engine service procedure, keep parts clean and free of grit.
• Remove the old pin, transfer any seals or bushings if present, then fit the replacement pin ensuring the disc valve moves smoothly without binding.
• After reassembly, check idle and throttle transitions on the stand or bench before full-throttle runs to confirm correct valve timing and seating.