I just set the float in mine, in preparation for it's break in run.
I don't have the paperwork in front of me but IIRC float height is 1 9/32", float drop is 1 3/4" Both are measured with the gasket in place.
Likes been said, you either have some crud in the valve keeping it open or the float is not set correctly. Another but less common cause is one or both of the float chambers has a leak and is too heavy to close. There should be NO gas in the float(s).
Good luck
Dave
Last edited by Volfandt; 05/13/2015 1:16 PM.