Mikuni FJ8-6FJ40 Jet Needles - 68.7 Needle - 35.7 Length to Taper engine-clutch-components-inner-hubs 1986-1989 Harley Davidson FXR Super

1986-1989 Harley Davidson FXR Super Glide II

2021-2025 Honda CRF450R

2013-2016 Polaris 800 PRO-RMK 163

A downforce that also promises the antiwheelie effect in strong accelerations by generating downward downforce of up to 6 kilograms in the front axle

Mikuni FJ8-6FJ40 Jet Needles - 68.7 Needle - 35.7 Length to Taper engine-clutch-components-inner-hubs 1986-1989 Harley Davidson FXR Super10mm 2. 51. 20mm 2. 51. 30mm 2. 51. 40mm 2. 36. 50mm 1. 98. 60mm 1. 49. Original TM38 Flatslide. 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.