A throttle link screw to suit the UMS 7-90cc — the seven-cylinder 90cc four-stroke radial from UMS.
On this engine the component is the throttle linkage screws that clamp the throttle rod to the lever.
Why this part matters: a screw that will not hold lets the throttle setting creep — a real hazard in flight. Supplied as a pack of 10, which is how these small parts are normally bought — you rarely need just one.
Fitting note: Use thread lock sparingly and check the linkage cannot slip under load.
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