Holley Main Jets 71 #122-71 3585410 IP67 dust/waterproof

IP67 dust/waterproof

CE-labelled bottles

Air Box Wash Cover Yamaha YZ250F YZ450F YZ250FX YZ450FX 14-21 WR250F 15-20 WR450F 16-20

Based on a single body

Includes 3/8" NPT and 1/2" NPT adapter fittings

Holley Main Jets 71 #122-71 3585410 IP67 dust/waterproofThese metering orifices control fuel flow into the metering system. They are rated in flow capacity cubic centimeters per minute and are changeable for tuning purposes. The shape of the entry, exit, and size determines flow. All Holley Main Jets are flow tested and then stamped with the correct number. Standard Main Jet . 071" Jet size 1 4 32 Thread Sizes from 40 110 Fits All Holley Model 2010, 2300, 4010, 4011, 4150, 4160 & 4500