I've been through my carb
several times, sent it ot the shop a couple times... Still seems to puke every once in a while no matter what. I ended up running a hose from the nipple to the rear of the bike where it will dump under and at the back if and when it decides to puke. I have noticed that killing the fule before killing the bike helps. I'm still running the pump and what I have now works just fine.