1 / 2Keihin Pilot Jet N424-21
Quantity
Details
Description
Genuine Keihin N424-21 pilot/slow-jet family for tuning the idle and low-throttle fuel circuit across sourced applications, including FCR and FCR-MX.
Configured FCR-MX37/39 standard member: #45. Configured FCR-MX41 standard member: #48. These sizes are configuration-specific; the family remains selectable for other sourced applications.
FCR-MX exploded view reference: 28
Notice
Before You Order — Measure Your Jet First
Remove the jet from your carb and physically measure it. If it does not dimensionally match this listing, this is not the correct jet — do not buy it.
Buyer is solely responsible for confirming the correct jet size before purchasing. Do not rely on year/make/model fitment guides — they cannot be guaranteed 100% accurate.
All jet sales are final. No returns or exchanges — no exceptions.
