Those are not my issues. No gas is entering into the overflow tube that is connected to the VRC. The VRC tube is located at the top of the filler neck a good 1.5 inches up from the filler neck base which is the fill line. What is happening is when the tank appears full I can rock the scooter a bit and the gas level will fall about an inch allowing more gas to be poured into the tank up to the fill line (base of the filler neck). For whatever reason air is being trapped in the tank preventing an initial complete fill.