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Top > Carburetors and Carburetor Parts > Carburetors & Parts by Carburetor Manufacturer > Keihin > Keihin Jetting Components > Keihin Jet Needles > KEIHIN N427-48 Jet Needles > KEIHIN N427-48 OEM Jet Needle Conversion Chart |
| OEM N427-48 Options and Choices |
Choosing a Needle Jet.
There are three reasons you are on this page.
- You are looking for a replacement or your OEM jet needle.
- You are rejetting your AFTERMARKET KEIHIN carburetor.
- You are rejetting your OEM carburetor
| OEM-N427-48-XXX Series
Conversion Chart |
1. How To Read Marks
1) Mark on OEM Jet Needle [6 digits]
- 1st digit of MARK on OEM's tells you the
KEIHIN Part Number.
- NEXT TWO DIGITS (2nd & 3rd) tell you TAPER
angle.
- NEXT TWO DIGITS (4th & 5th) tell you
DIAMETER of needle.
- LAST DIGIT (6th) tells you L1.
2. Conversion Table
1) Taper |
2) Diameter |
3) L1 |
| OEM |
Option |
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OEM |
Option |
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| |
OEM |
Option |
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| |
OEM |
Option |
|
11 |
B |
Lean |
60 |
A |
Rich |
72 |
N |
Rich |
A |
A |
Rich |
13 |
C |
| |
61 |
B |
| |
73 |
P |
| |
B |
B |
| |
14 |
D |
| |
62 |
C |
| |
74 |
Q |
| |
E |
C |
| |
20 |
E |
| |
63 |
D |
| |
75 |
R |
| |
F |
D |
| |
22 |
F |
| |
64 |
E |
| |
76 |
S |
| |
J |
E |
| |
30 |
J |
Rich |
65 |
F |
| |
77 |
T |
| |
K |
F |
| |
|
|
|
66 |
G |
| |
78 |
U |
| |
N |
G |
| |
|
|
|
67 |
H |
| |
79 |
V |
| |
P |
H |
| |
|
|
|
68 |
J |
| |
80 |
W |
| |
S |
J |
| |
|
|
|
69 |
K |
| |
81 |
X |
| |
T |
K |
| |
|
|
|
70 |
L |
| |
82 |
Y |
| |
W |
L |
| |
|
|
|
71 |
M |
Lean |
83 |
Z |
Lean |
Y |
M |
Lean |
3. Examples for Conversion
| OEM NEEDLE |
|
|
OPTION |
R1166J |
- |
> |
BEG |
R1368N |
- |
> |
CGJ |
R1470N |
- |
> |
DGL |
R2072N |
- |
> |
EGN |
|
The MARK ORDER of OEM needle is NOT the same as
OPTION's. DO NOT FORGET IT.
N84x, N85x Jet Needle to N428-48xxx
OEM MARK |
|
OPTION MARK |
|
|
|
|
|
|
|
| |
OEM MARK |
|
OPTION MARK |
N84A |
CFF |
N84I |
CFP |
N84B |
CFG |
N84J |
CFQ |
N84C |
CFH |
N84K |
CFR |
N84D |
CFJ |
N85A |
CCF |
N84E |
CFK |
N85B |
CCG |
N84F |
CFL |
N85C |
CCH |
N84G |
CFM |
N85D |
CCJ |
N84H |
CFN |
N85E |
CCK |
| NOTE: N84x series are dual taper, N85x series are
triple taper, therefore this chart will only give approximate comparison. Change
main jet to two sizes larger with N428-48 series for N85 series. |
N427-48 Jet Needles. For Keihin PE, PJ, PWK, PWM
| Major Diameter A-H |
Taper (A) in degrees |
(L1) length in mm |
|
Diameter (D) mm |
Scroll down
for J-Q |
A=2.605 |
B=2.615 |
C=2.625 |
E=2.645 |
F=2.655 |
G=2.655 |
H=2.675 |
A
1° 00' |
C=36.35 |
Rich |
|
|
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|
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|
E=38.15 |
|
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G=39.95 |
|
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J=41.75 |
Lean |
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C=36.35 |
Rich |
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G=39.95 |
Lean |
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C
1° 34' |
C=36.35 |
Rich |
|
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E=38.15 |
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G=39.95 |
Lean |
|
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D
1° 45' |
C=36.35 |
Rich |
|
|
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|
D=36.80 |
|
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E=38.15 |
|
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G=39.95 |
Lean |
|
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|
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E
2° 00' |
C=36.35 |
Rich |
|
|
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E=38.15 |
|
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G=39.95 |
Lean |
|
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F
2° 15' |
E=38.15 |
|
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|
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G
2° 26' |
F=38.60 |
|
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|
J 3° |
F=38.60 |
|
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|
| Major Diameter J-Q |
Taper (A) in degrees |
(L1) length in mm |
|
Diameter (D) mm |
Scroll up
for A-H |
J=2.685 |
K=2.695 |
L=2.705 |
M=2.715 |
N=2.725 |
P=2.735 |
Q=2.745 |
A
1° 00' |
C=36.35 |
Rich |
|
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E=38.15 |
|
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G=39.95 |
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J=41.75 |
Lean |
|
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C=36.35 |
Rich |
|
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G=39.95 |
Lean |
|
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|
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|
|
C
1° 34' |
C=36.35 |
Rich |
|
|
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E=38.15 |
|
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G=39.95 |
Lean |
|
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|
D
1° 45' |
C=36.35 |
Rich |
|
|
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D=36.80 |
|
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E=38.15 |
|
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G=39.95 |
Lean |
|
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E
2° 00' |
C=36.35 |
Rich |
|
|
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E=38.15 |
|
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G=39.95 |
Lean |
|
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F
2° 15' |
E=38.15 |
|
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G
2° 26' |
F=38.60 |
|
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J 3° |
F=38.60 |
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Remember: We also provide motorcycle carburetor rebuild services,
carburetor repair, carb rebuild kits, motorcycle tools, other OEM and
aftermarket motorcycle parts including Keihin Jet Needles. |
|
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