#6 Series Jet Needle (mikuni) Mikuni 434-6F9 6F9
#6 SERIES JET NEEDLE (MIKUNI) Part# 434-6F9 6F9
Manufacturer part number:
For 30mm-38mm spigot carbs. The jet needle controls the fuel mixture in the mid-range (1/4-3/4) throttle position. The taper of the needle determines the amount of fuel. For example: the thinner the diameter of the needle, the more fuel will be drawn. The thicker the diameter of the needle, the less fuel can be drawn.