Hi there, Just purchased a pre-built 80Cc motorized bicycle off craigslist. The lady whom I had bought it from had had about half a tank in it already, so I didn't put in the first tank. When It came time for me to put in the first tank, I went to the gas station and purchased a 1+ Gallon canister and had it filled mostly all the way. At first I had filled the tank up with way too much, so I had to empty some out. I then poured way too much oil into it, and long story short, had to walk my bike home. When I got home, I let the tank drain. So my questions are; was tank draining the right call? Is there anything else I should doin addition to tank draining? Lastly, for future tank fills, I've heard mentions of 16:1 or 32:1 (32:1 generally being the consensus) what unit is this in?!? 32 liters of gasoline to 1 liter of oil? I realize that must be an incredibly dumb question but cannot figure out the answer! Thank you!