Allens Performance Ltd.

KEIHIN N427-46 JET NEEDLES

These Keihin jet needles are given part numbers according to their dimensions

The syntax is N427-46-(TAPER)(L1)(DIAMETER)-(CLIP POSITION) – Eg: N427-46-JJH would be a taper of 3°00′, an L1 of 25.40mm and a diameter of 2.435mm

Clip positions are not required for ordering but for the sake of notation, 1 is the top clip position. (Near the blunt end of the needle.)

The available -46 series needles can be found here in the shop.Shopping basket

Keihin N427-46 Jet Needle Chart Dimensions
PE, PWK (26mm-28mm)
Mark Taper: A L1 (mm) Diameter: d1(mm)
A 1°00′ 18.20 2.365
B 1°15′ 18.65 2.375
C 1°34′ 20 2.385
D 1°45′ 20.45 2.395
E 2°00′ 21.80 2.425
F 2°15′ 22.25 2.415
G 2°26′ 23.60 2.425
H 2°45′ 24.05 2.435
J 3°00′ 25.40 2.445
K 3°15′ 25.85 2.455
L 3°33′ 27.20 2.465
M 3°50′ 27.65 2.475
N 4°00′ 29.00 2.485
P 2.495
Q 2.505
R 2.515
S 2.525
T 2.535
U 2.545
V 2.555
W 2.565
X 2.575
Y 2.585
Z 2.595