hi i have a derbi senda 04 model with a vacuum petrol pump, i recently changed my carb and i thought the vacuum tap was knackered as it would flow without the suction pipe on the carb, but now its stopped flowing and i cant find where abouts it goes on the carb. if i suck on the pipe petrol will come thru i just cant seem to find where the suction pipe goes on the carb.. any help would be appreciated cheers

derbi166, January 2011

its on the rubber inlet manifold that the carb mounts into.

adam bike doctor(of milton keynes motorcycle centre), January 2011

could be on the inlet manifold.

rayb, January 2011