Mikuni FJ8-6DH03 Jet Needles - 62.3 Needle - 22.0 Length to Taper eyewear-goggles-bicycle-e-power 2005-2008 Yamaha XVZ1300CT Royal Star

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Mikuni FJ8-6DH03 Jet Needles - 62.3 Needle - 22.0 Length to Taper eyewear-goggles-bicycle-e-power 2005-2008 Yamaha XVZ1300CT Royal Star10mm 2. 512. 20mm 2. 512. 30mm 2. 458. 40mm 2. 286. 50mm 1. 948. 60mm 1. 607. 30 38 Spigot Mount. 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 the 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.