For 1275cc engines after 1990 on with HIF38 carbs.
Has a 5/16" (8mm)inlet which makes it unique to this model.
The 1990-1 models of the Mini with 1275cc engines and HIF44 carbs use mechanical fuel pumps. Driven off the camshaft at the rear of the engine these pumps are generally reliable but when a diaphragm goes bad it can be very serious as often raw petrol/gas is pumped into the engine. This dilutes the oil and causes severe wear.