A connecting rod pin to suit the UMS 5-75cc — the five-cylinder 75cc four-stroke radial from UMS.
On this engine the component is the connecting rod pin locating the rod endwise.
Why this part matters: a worn pin allows the rod to move and causes a knock. Supplied as a pack of 5, which is how these small parts are normally bought — you rarely need just one.
Fitting note: Check the pin bore and renew the associated clips.
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