ive got a 25mm delorto on my bike, and it wont run for love nor money with the vacuum pipe on the carb? when i take it off and suck down it it runs? whats happening here?
are you sure your putting the vacum pipe on the right place it should go next to the oil pipe and the connector points straight up
on this one (a phbl) there is the straight up(i assume for petrol) the one for oil on the variator side of the carb, and the vacuum one on the exhaust side?
