Put a shee petcock on my 01 lt80. I left it on the position overnight and the motor filled up the gas. Now on all my other atc,atv when left on the on position they never did this. I no I can just turn it to off and be done with it but we all forget. Is it just to much fuel volume for the stock float to handle the banshee petcock.

 

It's hydraulic weight.
Most ppl put the shee petcock on so they have a on/off petcock instead of a vaccum operated petcock so the motor don't fill up with fuel..
I install a on/off valve with filter on the vaccum petcock.