As I think Jonda said, I had ok results with a new glass inline fuel filter connected to my aluminum tank running a nice little aftermarket 1/4 NPT petcock (that has a nylon screen). There was crap in the tank after 10 cleanings (ugh) and I wanted two shots at catching it. More than half a tank of fuel - bike ran fine. When it got lower than that, so did the fuel pressure to the carb intake, and on hard acceleration, she ran lean. So I cleaned the tank more, and dumped that external filter, and no mo prob