RE: Filling the tank with the cowl on
Funny you should ask that, I was just about to ask the same question myself, so if I may, I'll just tag along and add another: how do you know when the tank is full if you aren't using a pressure line to the muffler? I have an O.S. FS-70 II Surpass that isn't supposed to need a pressurised tank, so I'll just need a fill/drain line through the cowl. How do I know when the tank is full?