when you put the bike away for the winter did you add a fuel stabilizer to the gas in the tank?
10% ethanol will get gummy and have little lumps of jell if you dont. If not you will have to drain the tank, and pull the line off the carbs and let the fuel pump run for a few seconds (cycle the ignition switch to run position without hitting the starter) to blow out anything in the fuel pump... also change the fuel filter.. then fill the tank with fresh gas, add 4 or 5 ounces of Seafoam, let that flush thru your fuel pump for a couple key-on cycles...
and then your carbs might flush out with the clean gas after a few minutes.... If the floats keep getting stuck after that, then you will have to take them apart again
if you left the gas tank empty all winter it might have rusted up on you. Rust will plug your jets if it gets thru the fuel filter, but it normally wont make the floats stick open.
since we are on the internet I have to add: if you drain your tank and dont know how to get rid of the jelly gas, I would not put it in a car, and dont try to burn it or anything like that. If you put it outside in a bucket where it wont fill up with rain, it will evaporate in a few days. If you can find a place to take it, thats much better.
Just to cover all the bases, you are sure its the carb overflow tube, and not a gas tank overflow vent tube? If you fill your gas tank to the top in the winter cold, when it warms up in the spring the gas expands and it will either come out the tank vent tube (if your bike has one) or it will force its way out thru the gas cap, covering your tank with gas. If you have not taken the gas cap off, make sure the tank is not full to the brim.
Also when you change the floats and needle valves, you do have to adjust the shutoff position.
Last edited by KCW; 03-18-2019 at 09:00 AM.