Is there a list of SU carb needles/specs?
There are several hundred SU carb needles. Full details, including needle profiles, can be found in the Haynes SU Carburettor manual. Alternatively, Burlen Fuel Systems (present manufacturer of SU carburettors) can supply a list. SU carburettor spring chart Colour Load (oz) Length (in) Black, green 5.25 2.5 Light blue 2.5 2.625 Red 4.5 2.635 Yellow 8 2.75 Green 12 3 Brown 14 3 White 18 3.625 Red/Yellow 24 4.812 Red/White 40.5 3.875 Red/Green 11.25 3.875 Lt. blue/Block 4.5 3.875 Lt. blue/Red 18 3.875 Red (HIF carb) 4.5 1.53 Yellow (HIF carb) 8 1.53 Green (HIF carb) 12 1.53 Twin SU carburettor setup does not fit The manifold is probably from a Sprite, Midget or other in-line engined A-series cars. Mini manifold casting numbers are: • AUE 1014 – twin 30 degree HS2s • AUE 1019- twin H4s (Special Tuning) • AUE 1015- twin HS4 (Special Tuning) Other casting numbers indicate manifolds from other twin-carb A-series engines. Unleaded petrol and your old Mini In many countries, unleaded petrol is
