I just fitted a new (Chinese I know this could be the reason but what else can we do in this world we are forced to buy Chinese rubbish ) carby on an Intek motor. The problem I'm having is it revs ok but as soon as I fit the intake manifold (without an air filter in it) it just bogs down and chokes it.It will run at idle but as soon as you try to increase the revs it just bogs down. I need the housing fitted because of the primer and I am running out of ideas as to why the housing is restricting the air flow. Anybody have any thoughts?
