O.S. Engine OS23781400 Ball Link No.3 20K - Carburettor Linkage Replacement  [OS23781400]

Fitment notes and part identification

This O.S. Engine ball link serves as a compact connection for carburettor throttle and mixture linkages in RC glow engines. Identified by part number OS23781400, the Ball Link No.3 20K is supplied as a single unit intended to couple a control rod to a carburettor lever or similar linkage point.

Fitting is straightforward: attach the ball link to the linkage rod, seat the ball end into the carburettor lever and check for secure seating. Maintain clean fasteners and inspect the joint for any signs of binding; correct seating and clearance will help avoid premature wear.

For ongoing reliability, inspect linkage alignment and movement regularly. Adjusting the control rod length or the ball link position alters leverage and response, so use measured changes to retain smooth operation between the throttle servo or arm and the carburettor.