Flat side up for the diaphragm is correct, the lifter (3 pronged jig) has this side down written on it so you wont have got it wrong. Almost sounds like the float has moved and jammed in the up position when you put the primer cap on.

Small spring between the lifter and diaphragm and larger spring between the diaphragm and clip on end cap.

Primer cap has a horizontal line that needs to be horizontal but you probably already know that.

Poppet valve should have the letter "C" facing the spray hole. Probably wouldn't result in it not running but does vary the mixture (this is assuming your poppet is white, the black ones are not adjustable)

Another possibility is the jet is blocked, this is also the primer cap retaining screw.

Other then that I'm all out of ideas.

Last edited by David2stroke; 19/09/13 04:46 AM.