It's possible if you have a carburetor with a float that it's either stuck open or damaged.
if your looking down on the petcock from the top of the radiator turn the petcock to the right to loosen it and to the left to tighten.
The petcock requires the vacuum of a running engine to stay open. Because you ran the carbs dry you now need to bypass the vacuum system to allow the carbs to fill. Turn the petcock to prime (PRI) and leave for about 30 sec. If it starts, move petcock to on.
FACING the petcock, turn it CLOCKWISE, as if you are screwing it IN. Many times it is a little rusted and hard to turn. Before you start, spray it with any number of products available for rusted or stuck threads, such as WD-40. Then use pliers to gently turn the petcock to the RIGHT. GOOD LUCK!
Float may be stuck in carburetor, or you may need to turn the petcock to the off position when not riding (if applicable). ~RC@HD~ ANSWER: Another posibility is that the gas cap is not venting correctly and when the bike sits in the sun, presure builds up in the tank forcing gas out of the overflow vent in the carb.
Turn it counter clockwise to open.
A petcock is a fuel swich on the petrol tank that can turn the flow of petrol to the engine on and off. It usually has a on, off and sometimes reserve setting.
First turn off the gas at the petcock. Remove the hose from the petcock and attach your own that is long enough to reach your container.
Replace petcock with a properly sized plug Be sure you turned the petcock back in all the way. Try opening and re-closing petcock,may be some trash in it.On mine you have to push in on the petcock and turn it to re-seat it.
To open turn clockwise To totally remove turn body counter-clockwise
Open the radiator petcock by turning in the normal direction, left. See "Related Questions" below for much much more...
If it is a plug -- turn it counterclockwise to remove If it is a "petcock" turn it clockwise to open
in any motor vehicle, the reserve is actually in the gas tank itself. the petcock has two levels in which it sucks gas. one higher the the other. the higher one is wjen the petcock is on on, and the smaller one is activated when you turn the petcock to reserve.