My 2004 Road King has an S&S Super E carberator. It started leaking fuel from the carb overflow line. I checked the float needle and it looked ok. What else could cause this problem

 

Either the needle and seat are no good or the float sunk. Was there any crap in the bottom of the bowl? I wouldn't even mess with the needle and seat, just replace it. Most any local indy will carry it.. Pull the float an check it in a bowl of gas.. Make sure it doesn't sink...

 

Thanks I'll give it a try.