Genuine Keihin pilot jets provide the best replacement or calibration solution for your Keihin carburetors.  Do not use an imitation, nothing substitutes for OEM quality and Keihin jetting is guaranteed to be the exact size indicated because of high manufacturing tolerances.  The N424-21-XXX pilot jets fit all Keihin OEM style CVK, FCR-MX, PD, PE, PJ, PWK, and PWM carburetors.  Some, but not all, of the applications for this pilot jet include:

• Keihin aftermarket CVK20 carburetors
• Keihin aftermarket and OEM FCR-MX carburetors
• Keihin aftermarket and OEM PD carburetors
• Keihin aftermarket and OEM PE20, PE26, PE28, and PE30mm carburetors
• Keihin aftermarket and OEM PWM34, PWM36, and PWM38mm carburetors
• Keihin aftermarket and OEM PWK28, PWK33, PWK38, and PWK39mm carburetors
• Keihin aftermarket and OEM PWK35, PWK36, and PWK38 quad vent and air striker carburetors
• Honda ATC200 (81-83)
• Honda ATC250R (83-84)
• Honda FL350R Odyssey (85)
• Honda CRF450R (02-05)
• Honda TRX450R (06)
  
• Honda CR500R (all)
• Honda XR650R (all)
  
• Honda CBR1000F Hurricane (87-88)
• Kawsaki KX125 (all with Keihin PWK carb)
• Kawasaki KX250 (all with Keihin PWK carb)
• Kawasaki KX500 (all with Keihin PWK carb)

Please Note:  These N424-21 pilot jets are sometimes confused with the Keihin N424-74C pilot jets, please check your application carefully.