O-ring chains will last a long time...longer than any non-O-ring chain. I don't know what kind yours uses but I would think that a O-ring and a regular chain are the same size :? :?:
As for your choke, when its "on" it will idle at a much higher RPM so you should be able to recognize when its on or off.
runs semi-well with lever down but dies out with lever up.
On my Foreman, I can't move the lever past 4/5 of the way or it will start spitting and sputtering too. So I just leave it and she warms up very quickly (also thanks to electric carb heater)
[20:55] <waterpumper> putting a racing pipe on a Foreman is like putting a high dollar bikini on a 400 pound chick...just because it fits doesn't mean it looks cool