Cold the bike runs good but get it revving and in the mud it dont run very well. And it leaks gas out the vent tube on the bottom of the carb. Any answers would be great

 

Gas leaking from the vent tube most likely indicates the float level is incorrect - either having trash in the float needle seat / worn float needle, Or wear has caused the level adjustment to come out of spec's.

This condition will cause a "flooding" effect and the quad will not run properly as there is too much fuel being delivered - - try cleaning the carburetor and adjusting the float level.

 

How do you adjust the float Level and can you buy just the float parts?