TOPHAM VERGASERTECHNIK GMBH

TOPHAM VERGASERTECHNIK GMBH
OFFICIAL KEIHIN DISTRIBUTOR FOR EUROPE

JET NEEDLE CHART
for
FCR28 - FCR33 CARBURETORS

Jet needle type N427-90-size ( 3 code letter )

The size/configuration of the jet needle is composed of the following three code letters

and can be customized:

1. Code letter: Taper A
2. Code letter: Length L1
3. Code letter: Diameter D

Example for determinating a jet needle ( see also chart )

Taper of the jet needle A 1°15´ = 1. Code letter F

Length of the jet needle L1 63,20mm = 2. Code letter: M

Diameter of the jet needle D 2,735mm = 3. Code letter: P

Jet needle part number: N427-90-FMP

Marking on the jet needle: 90FMP

Code letter	1. Code letter Taper A in degrees	2. Code letter Length L1 in mm	3. Code letter Diameter D in mm	Clip grooves
A	-	*58,25*	*2,605*	7
B	-	58,70	*2,615*	7
C	-	59,15	*2,625*	7
D	*0°45´*	59,60	*2,635*	7
E	*1°00´*	60,05	*2,645*	7
F	*1°15´*	60,50	*2,655*	7
G	*1°30´*	60,95	*2,665*	7
H	*1°45´*	61,40	*2,675*	7
J	*2°00´*	61,85	*2,685*	7
K	*2°15´*	62,30	*2,695*	7
L	*2°30´*	62,75	*2,705*	7
M	*2°45´*	63,20	*2,715*	7
N	*3°00´*	63,65	*2,725*	7
P	*3°15´*	64,10	*2,735*	7
Q	*3°30´*	64,55	*2,745*	7
R	*3°45´*	65,00	*2,755*	7
S	*4°00´*	65,45	*2,765*	7
T	*4°15´*	65,90	*2,775*	7
U	*4°30´*	66,35	*2,785*	7
V	*4°45´*	66,80	*2,795*	7
W	*5°00´*	67,25	*2,805*	7
X	-	67,70	*2,815*	7
Y	-	68,15	*2,825*	7
Z	-	68,60	*2,835*	7
Retail Price: 14,20 Euro/each without tax