My kymco leaks gas from the overflow on the bottom of the carb constantly I have cleaned the carb many times and tried to adjust it at the needle valve but still leaks from the overflow

Question edited for clarity.
Question moved from motorcycles to ATV model category.

Turning over has nothing to do with the carburetor! Your battery is flat. It will need charging.

If the carb is leaking, it is because the float is set wrong or the float valve needle isn't seating properly.

Engines only need three things to run.

A supply of clean fresh fuel (not sitting a year)
A Spark at the right time.
Compression.

You say you cleaned the carb **in** carb cleaner, as opposed to *with* carb cleaner. Did you strip it down, check the float for holes, clean the jets and needles?

Float metering needle is sticking causing it to overflow back into the block has dirt causing a needle to stay open when you shut it off

the float is not what needs cleaning.. its the needle and seat that the float controls that needs cleaning.. this is what regulates the flow of gas into the carburetor float bowl.. -- #32 on this exploded view..
http://www.carbparts.com/mikuni/vm18_144.gif

Fuel supply problem somewhere. How is the float adjustment and the float valve? I'd guess the level adjustment is too low.

There is a bunch of things including, Hole in float, Dirty gas has left deposits on the needle and doesn't allow a complete shutoff, A damaged needle or seat, If carburetor has been taken off the float setting could be off, gas breaking down leaving a deposit on the needle or seat. Usually can be cured with a good cleaning and a new needle and seat. Check float to be sure it doesn't have a hole in it. If using 10% ETHANOL. fuel the fuel can be damaging your carburetor. I have had it eat a hole in the bottom of one of my carburetors so it does happen. I do not use ethanol fuel in any of my 4x4's anymore. May be more but good cleaning is needed.

adjust valves? check for air leaks, good air filter.

fuel overflow from the carb is usually caused by dirty or incorrectly adjusted floats and float needle.

make sure filter is clean not gunked up..try draining carb if there is a plug if not.Then try to clean the carb the jets could be clogged not hard at all to take apart.Good luck

I am going to go with a few taps on the side of the carb around the bowl .. use the handle of a screwdriver .. it is mostlikely a stuck float.. if that doesn't fix it take the carb off pull the bowl look at the needle and seat make sure there isn't something keeping the needle from fitting snugly into the seat. Not sure if the tip of the needle is rubber or the seat it's self on this carb.. one or the other will be. Look for cracks in the rubber. If none I would try to re adjust the float setting ..

sounds like your carb float is stuck and your needle and seat is open allowing the bowl to fill with gas and run out the overflow. take off the bottom bowl of carb and check to see if the float has a hole in it.