2 things Norm, when starting from empty tank you'll either need to fill tank to the top or prime it a lot more. they use a spring/Diaphragm with port flaps for in & out arangment.
There should be a small dish in the tank for the shorter pipe, I found it needs to have fuel in it.

Last edited by SuperDooper; 09/09/16 01:24 AM.
Regards,
Paul

Such is life.......
Nothing better than a "GreenField" just mowed..