
This part being universal, it may require adaptations
KEIHIN Idle Jet 140 (manufacturer part number: N424-14140) – Original KEIHIN spare part designed for carburetor interventions. Ideal for motorcyclists performing maintenance, tuning, or restoration of the carburetion.
The idle jet manages the flow of fuel at low RPM: it allows for adjusting the richness at idle and during low throttle openings. Replacing a worn jet or modifying its calibration is part of the standard procedures to achieve a stable idle and consistent carburetion.
Part intended for technicians and demanding DIYers: fittings and threads conform to KEIHIN standards. Suitable for replacement during bowl draining, carburetor cleaning, or idle mixture adjustment. Be sure to check compatibility with your carburetor model before installation.
Product delivered individually. Replace the jet carefully and work on a clean assembly to avoid introducing impurities into the bowl.