This universal nipple serves as a direct service part to re-establish a secure fuel joint on the O.S. engine variants listed. It is intended for use where the factory nipple has become damaged or is allowing fuel to escape.
Only the models specified in the product name are supported, so inspect the existing fitting and seat before installation. When seated correctly the nipple provides a compact and clean fuel route at the inlet or hose attachment.
Installation involves pulling the old nipple free, seating the replacement so that threads or the mating surface align, and tightening little by little to reach a leak free connection without over-stressing the carburettor housing. Verify fuel tightness at idle and under normal running after fitting.
Keeping fuel connections in serviceable condition helps maintain predictable throttle response during tuning and track use, making this a useful maintenance item.
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