Mikuni SBN46 Carburettor - Genuine Mikuni product in a sealed box 

BN46-42-8002

Performance single 46mm carb with extended throttle shaft to make dual kits. Designed to give Pro Level Racing performance. Features a Viton 2.5 needle valve, #120 pilot (slow) jet, #150 main (high) jet, primer type cold starter fitting (no butterfly choke)

Bolt centres on the motor end are 75mm apart

Bolt centres on the the air-cleaner end horizontally and vertically are 45mm apart.

UK stock so you won’t get hit with import tax