Vespa PK50 xl2 Pluromatic

Scooter starts and runs very well but after about 4km it just stops. If you then sit and wait for a few minutes it starts again but only runs for a short distance before stopping agian.

Possible reasons:

- Tank vent does not work

- Fuel hose has air bubble inside

- One of the 2 fuel Filters is partially stuffed up

- etc.

These are only a few reasons.

Better consult the mechanic of your confidence