my 52 8n has a hungup float or float valve, I recently changed the seat and valve and it seemed to work ok I.e.. the float valve dropped or opened when the float went down, i put it together and it ran ok for awhile then started doing same thing running till bowl empy , i have full flow from tank to carb. but onlyu a dribble out of bowl drain. is there anything i can try from outside to get float valve to open when float goes down, gravity is what drops the float valve right there is no direct connection fronm float to float valve right? at least i didnt see one. would spraying pb blaster in gas inlet do any good? any ideas i can try other than dropping carb and changing seats and valve again.