NCYS jet needle.

Genuine Keihin high quality part.
This fits:

• all 35-41mm. Keihin FCR racing carburetors
• all 35-41mm. Keihin FCR carburetors
• all 35-41mm. Keihin FCR MX carburetors.

Amongst others, this was used in:

• 2006 Kawasaki KX250F (16187-0191)
• 2006-2008 Kawasaki KX450F
• 2004-2005 Honda CRF250R (16204-MEN-671)
• 2004-2006 Honda CRF450R
• 2003-2004 Yamaha YZ450F (5TA-14916-YS-00).

Complete as pictured.