Keihin OEM FCR-MX Leak Jet N424-52
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Details
Description
Keihin N424-52 FCR-MX Leak Jet is the accelerator-pump bleed jet for Keihin FCR-MX carburetors. Select the required jet size from the options.
Function
The leak jet controls how much accelerator-pump fuel is returned to the float bowl when the throttle is opened quickly. A smaller size reduces bleed-back for a larger/longer fuel squirt; a larger size increases bleed-back for a smaller/shorter squirt.
Specifications
- Series: N424-52
- Thread: M4 × 0.7
- Overall length: 8.5 mm
- Material: brass
- Location: FCR-MX float bowl / accelerator-pump circuit
Compatibility
Confirmed for the Keihin FCR-MX carburetor family. Supplier listings may also reference OEM PWK power-jet use and specific motorcycle models and years; these notes are provided as general reference only and are not guaranteed fitment for every N424-52 size. Always confirm the required jet calibration against your carburetor specifications or OEM parts information before ordering.
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.