working on a buggy for a buddy of mine and having some issues.
its a GS storm and has an HPI .21 motor.

we cant make it pull fuel to save our life. if we prime it by blowing fuel into carb, it will fire up first try, but it wont pull on its on.
we checked the base of the carb and back plate, but cannot find a leak. also tried new fuel hoses, etc.

can anybody give me some ideas as to where to go to next?
i know the motor runs, but without the vacuum, the motor wont pull the fuel.

this thing has stumped me for going on 3 days!