O.S. Engine OS21481950 Carburettor Hose Nipple No.12 Universal Fit  [OS21481950]

Nipple for Glow-Engine Fuel Lines

This RC-scale carburettor nipple is supplied as a service replacement part for glow-engine fuel systems. It is built to serve as a universal connection for fuel tubing on small nitro engines, prioritising secure hose seating and an installation process that does not compromise carburettor operation.

Installation steps are simple: remove the worn nipple from the carburettor vent or fuel port, confirm the hose inner diameter matches the nipple seating, then push the fuel line onto the nipple until it seats snugly. If extra grip is needed, fit a short heat-shrink sleeve or a small clamp, taking care not to apply excessive force to the carburettor housing.

For tuning and upkeep this nipple helps maintain a consistent fuel delivery junction and reduces the chance of kinks adjacent to the carburettor. Carry out periodic inspections for fuel seepage and replace the nipple if seating becomes loose or worn under normal vibration.

As the item is described as universal, verify compatibility by visual inspection and a trial fit on your carburettor before finishing assembly; do not alter the engine or carburettor body to force a fit. Use this component only on model engines and follow safe working practices.