MikeF

Sounds like you are running extremely lean, those metal pieces are most likely from the piston! Double check the oil injection pump to make sure it is working, they are known to fail on the blasters, if it has already been removed make sure you are running 32:1 oil/gas mix or richer, if that doesn't help try rejetting the carb. Other than that try searching on some of the atv forums, they have helped me loads!