I tried to look thru some threads to make sure this wasnt cover. I just picked up a 07 650. I took her home and started to clean her up a bit. To get here home I fired her up and drove around the other side of the building to get her in the truck. Once I got to the other side she had problems starting to the point it wouldnt start. I got here home put fresh gas in here she fired up and ran under 1/4 throttle a bit to warm her up then all the above happened again. It seems like when she gets warm she quits. And I cant get her started. I havent pulled carb and hoping not to. Any ideas?

 

Fuel vent tube? Remove the cap and see if it duplicates the issue. Is the tank full? Petcock could be on but fuel below the tube, try reserve.