I have half a float in my pit bike carb how do i start it i cant find another float all that matches the shape of the half one that is in my bike already it is a triangular shaped black plastic or rubber float i dont know how it has snapped in half and i dont know were the other half is to glue it back together how can i start and ride on my bike or dose any one know were i can get a new float from i have tryed ebay but cant find one thanks

Clean carb and air
mix screw needs set and rev screw

If youre talking about the spring in the carbs. throttle bodythe answer is yes.
Inside the main chamber is a cylinder with a long pin ,this pin or needle goes to the main jet which governs the gas flow.
if the spring is missing the needle will be in the wrong position .
as far as the floats are concerned they teater on a set pin and are designed to float on top of the fuel in the float chamber.make sure they move freely and that there not rubbing on anything or bent.you might want to try some starting fluid to get things started then make your adjustments,after starting aduust the idle screw first.
a good formula for idle screw is turn the screw all the way in .
Then turn it out 3 and one half turns out,
good luck,Gary

clean the carb !

On the kick start side of ur bike on the carb the should be a bolt on the carb ball loosen it off till all the water and fuel comes out. If ur bike still want run u need to take the carb off and clean all the jets.

hey mate could be a few things, dirt in the jet easy fix take petrol float off the carb clean jet with w..d. Or there are two screws on the carb one petrol and one air mix the one u want his the petrol one. this will be very close to the accelerator cable and will have a spring on it turn it clockwise. VERY SMALL MOVEMENTS u will hear the engine rev faster as u turn the screw. hope this helps ****

yeah its the fuel float just needs an adjustment

sounds like your carb could be blocked with dirt if it wont start unless you put juice down plug i would take the carb off and give it a good clean and also make sure the jets ok just clean them with carb cleaner and a paper clip

That tube would be the overflow tube. Your carb float is sticking open and allowing fuel to flow in constantly. You need to take carb apart, clean needle valve, and inspect or replace carb float.