SU Fixed Metering Needle — Code W3 | W3 | SU Specialists
£20.95
Sale price
£20.95
Regular price
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SU Fixed Metering Needle — Code W3 | W3 | SU Specialists
£20.95
Sale price
£20.95
Regular price
Genuine SU fixed metering needle, code W3, for SU carburettors with a .090in jet.
- Needle code: W3
- Type: Fixed
- Jet size: .090in
- Profile stations: 12
Needle profile
Diameter in inches at each station, measured every 1/8in down the needle from the shoulder (station 1). A smaller diameter gives a richer mixture at that point. Stations 1–2 set the idle, 3–6 cover part throttle, cruising and pickup, and 7–9 the top end and full throttle on a 1¼in carburettor.
| Station | Diameter (in) | Station | Diameter (in) |
|---|---|---|---|
| 1 | .088 | 7 | .073 |
| 2 | .083 | 8 | .071 |
| 3 | .0805 | 9 | .0694 |
| 4 | .078 | 10 | .0677 |
| 5 | .0763 | 11 | .066 |
| 6 | .0745 | 12 | .065 |
Not sure which needle you need? Use Find My Kit or send us your carburettor details and we will check it for you.