I had a Mustang once that every so often, it would stall out. After checking everything under the hood, I pulled the tank and inside the tank was a factory part label from the pick-up (I guess). It would get sucked to the pick-up and wrap its self around it blocking the gas. After it stalled and the label fell off the pick-up, it would start up again. Just make a mental note so if your bike has/gets the same symptoms from those paint chips,or next time you have your tank off drain it take the petcock off and clean the tank!
