My brothers has been doing it since new. Right now it has 412 miles on it cuz of it. Who the heck wants to keep fixing a machine that u know will start messing up the first time you hit dirt and mud?
I've heard about the vent hoses...i have had this carb apart 3 times in the garage and twice out on the trail.
The last time i got it dropped at my house because he tried to fix it himself and forgot where everything goes!...NICE!

So i am gonna clean it again, re-route and extend ALL vent hoses from everywhere on that engine and install a good inline fuel filter between the tank and the carb. Its not my quad but we do want to use it on occaision.

God....I love my EFI!