K&S KS23791 Needle Extension Rod with Switch Lever (Blue)  [KS23791]

Needle control extension and compact switch

The K&S KS23791 is an accessory-length needle extension rod that includes a small switch lever, finished in blue anodised aluminium. It is designed to let you operate the carburettor needle and a simple mechanical switch from a convenient nearby position instead of reaching onto the engine body.

Typical applications include bench set up and field adjustments for glow or nitro engines where direct access is awkward. The item serves as an aftermarket aid to extend needle reach and to place a manual switch actuator within easy reach of the model operator.

Fitting normally requires connecting to the current needle linkage or replacing the linkage end, then positioning the lever to avoid interference with other controls. Use basic hand tools for mounting and verify free movement of the rod and solid engagement of the switch before use.

When adjusting jetting, the extension enables small changes at a safer distance while the lever provides a simple on/off function for ignition or pump systems that accept a mechanical actuator. Always confirm clearance and linkage geometry against your engine before final installation.