I have to agree with Yaniel on this one. My Saito's don't smoke much when adjusted right, but I'm using 15% with 18% total oil content. Some of the heli fuels have 22-23% oil, maybe more. An interestin aside, though I don't know that it necessarily relates to these engines. Kevin Cameron (motorcycle guru) was talking about guys siezing on the high banks of Daytona running 2 strokes back in the day, and mentioned that many times they would add more oil to the mix to prevent seizing. Keep in mind that on a 250cc bike at Daytona, they were running as lean as possible to get the most speed that they could. Well, after adding the extra oil, they'd go out and seize again. What they didn't realize was that by adding oil, they were leaning the mixture (more oil=less gas) I never forgot this simple, but little known fact. Something to keep in mind if you decide to add oil content to your fuel. The mixture will change.
