need help with 200s carb

every time you put gas in to the tank it just comes out through the air filter how do i stop this and is there a site that has pictures and directions on how to tune this crab.

[Dirtcrasher]

Sounds like the float is set wrong, although I don't see that too often unless it's messed with. The valve that the float closes to shut off the gas seems not to be working. They get dirty and the rubber tip wears out to. You need to get a service/repair manual at your dealer or I think there is a Clymer.com takes less than a week to get.