Just a few questions...

First off, for those who have been keeping up with my other posts about my little "Red Baron"

... it's been running great the past few days.

However, I noticed some black liquid running down underneath my bike frame. What is this? because the only liquid that goes in my motor is greenish blue.

Also, my motor seems to shut off automatically whenever I pull in the clutch and am not holding the throttle enough to keep it running. The kill switch at this point seems useless.

So, my questions are... what is this black liquid leaking down under my frame and how do I stop the leaking? And.. should I worry that my bike is unable to idle, if so, how do I make it to where it idles on it's own rather than me having to hit the throttle?

Thanks in advance guys! (You guys are a lot of help by the way!)

My English 101 Professor is an experienced Harley owner/rider. Although I realize the big difference between a Harley Davidson motorcycle, and a Motorized 66cc Bicycle.. he said that if I'm at 16:1 currently and excess oil is leaking then maybe I should consider going a bit more lenient on the oil to 12:1 or so.. would this be recommended by anyone else?

Yeah, see, that's what I was thinking also. I think what he was getting at is that the less oil you have in the mixture, the less excess oil you'll have dripping out. I don't think he took into consideration the aspect of the break-in period, (although I failed to tell him that), and that it is only a 66cc not a Harley, therefore fuel and what not would be pretty different.

It now idles. Thanks! And the black liquid is still visible but I still don't see it's source. I think it's fine for now, because I just had a couple drops on my shed's floor when I got back from being out of town over the weekend. 2-3 days of sitting there, and only a couple drops from a leak.. I wouldn't say that's very bad..