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'95 25hp mariner carb trouble

A

Adidafish

New member
Bought engine last week, it started hard (it would flood if tipped up or even looked at wrong way!)due to little ball bearing in fuel primer missing. I rebuilt carb, and cleaned with carb clean(no soak, but also no signs of any gunk inside) installed all new gaskets. Now she starts good but at full rpm, she starts sounding like she is sucking air.... I ran with cowl off while adjusting my only mixture screw and noticed air bubbles/fuel leaking from little square top cap on carb!! I ran back to trailer at this point! Only seems to leak at full throttle. Is there supposed to be a brass plug in that little hole under that cap or what??? Fuel lines are new, fuel is mixed correctly, I don't have a tach but seems to be at correct rpm. Help.
 
I think my float is set correctly. In my prior experience if my float was not floating to shut needle valve, fuel would continue to pour even when engine is off. If float was set too tight, needle wouldn't open and no fuel would even get into carb. My problem seems to have nothing to do with any of that??????? So you must be thinking my float is allowing needle to open too much and let an excess amount of fuel through that can't be burned so it weeps out? (But fuel shuts off at present setting!!?)
Your fix would be to bend float lever a little to put more pressure to shut needle valve?
I know that I am here asking for help but this doesn't seem rational!!
 
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