infinityron
Contributing Member
I have a 2003 mercury 4hp 4 stroke. been a little stubborn starting lately. I changed the in line fuel filter under the integrated tank. I confirmed fuel flow after the pump. Got it started and it seems to want to run and idle ok, but there is raw fuel spitting heavily out of two little nipples at top of carb continuously. Obviously i shut it down. I suspect a float problem, but wondering it its easier just to unbolt the whole assembly and replace with another carb assembly and not cost prohibitive. What is causing the gas to spit and .......why are those two nipples/barbs/fittings on there and why arent they plugged?