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.)
 |
| 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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