BGM Faster Flow fuel tap for Vespa PX, Rally, Sprint, V50, PV, PK

The fuel supply of the Vespa Largeframe models is due to the small difference in height between the tank and the carburetor float chamber level still somewhat problematic.

If the motor is converted to another type of carburetor the float bowl sits even higher than the original SI counterpart. With petrol hungry engines, this can quickly leade to an insufficient supply, leading to a lean mixture, and this in turn in the worst case result in engine damage.

A key choke point in the fuel flow is of course the fuel tap. The original case has a flow rate of nearly 300ml/min. This would of course be sufficient even for the most powerful engine. A consumption of 300ml/min equals to 18 litres an hour.

VIDEO

With the PX, Rally, Sprint, and similar design models, it is more likly speaking of a minimization of flow resistance in order to always have a high pressure to the carburetor. We did a test in order to illustrate the flow rate of an experimental setup with three different fuel taps. The result was quite clear.

The golden rule was for motors, which are much stronger than the original engine, at least 400ml/min are desirable as flow rate.

Our new Faster flow fuel tap not only doubled that amount, he lays 100ml/min on top of that! Thus he has double the flow rate of a conventional fast flow fuel tap and an incredible three times the amount compared to an original one!

This makes it an ideal addition to all the powerful setups and provides a secure base to supply gasoline to prevent problems in the beginning.

The fuel valve is available in two variants:

1. With reserve position (BGM3030)
2. With electronic reserve (BGM3031)