Allens Performance Ltd.

KEIHIN N427-48 JET NEEDLES

February 23rd, 2016

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

The syntax is N427-48-(TAPER)(L1)(DIAMETER)-(CLIP POSITION.) Eg: N427-48-DGH would be a taper of 1°45′, an L1 of 39.95mm and a diameter of 2.675mm.

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.)

 

Keihin N427-48 Jet Needle Chart Dimensions
PWK33, PWK35, PWK35 Air Striker, PWK36, PWK38, PWK38 Air Striker, PWK39, PWK41, PJ34, PJ36, PJ38
Mark Taper Angle Taper Offset L1 (mm) Diameter: d1 (mm)
A 1°00′ 34.55 2.605
B 1°15′ 36.35 2.625
C 1°34′ 36.35 2.625
D 1°45′ 36.80 2.635
E 2°00′ 38.15 2.645
F 2°15′ 38.60 2.655
G 2°26′ 39.95 2.665
H 2°45′ 40.40 2.675
J 3°00 41.75 2.685
K 3°15′ 42.20 2.695
L 3°33′ 43.55 2.705
M 3°50′ 44.00 2.715
N 4°00′ 45.35 2.725
P 2.735
Q 2.745
R 2.755
S 2.765
T 2.775
U 2.785
V 2.795
W 2.805
X 2.815
Y 2.825
Z 2.835

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