CR35-39mm Special Carburetor Jet Needle (7-Clip Position)

For large-body CR Special CR35, CR37, CR38 and CR39 carburetors, Keihin N427-51 jet needles provide seven clip positions for mid-throttle fuel adjustment. Select the complete needle profile for your setup; clip position adjusts height, while the profile determines needle geometry.

Moving the clip down raises the needle and richens the mixture. Moving it up lowers the needle and leans it. These needles are not interchangeable with the small-body N427-11Y and N427-12Y families.