Hey guys, I'm new here and I'm finally throwing up my hands and asking for some help. I fix these things and others for a living so I usually know what I'm doing but this one has me stumped. 96 QR 250 2wd, I rebuilt the carb, put on a new fuel pump and all the basics that go with that. It starts easily and runs great for a few seconds but then the carb floods. When I bench test it off of the bike it does great. No leak at the valve seat whatsoever and can withstand a good bit of pressure in the fuel line but as soon as I hook it up to the fuel pump it floods. I've changed float needles, adjusted the float many times and everything else I could think of, all to no avail. Anyone who's worked on these knows what a pain it is taking it off the bike and getting it back on and I've done it countless times now. I even bought a new knock off carb from ebay that was supposed to work great but it doesn't fit. You only have so much room in there and it was too wide from front to back. If anyone has dealt with this flooding issue I would greatly appreciate any advice. Also, if anyone knows the correct slide carb I could replace it with, I'm not against going that route.