beta250_rev3

All right, I am simpler the video here I will attach. I want that the sound of my engine was such http://www.youtube.com/watch?v=hQMr9g2V8Dk

Hello dear friends.) I'm from Russia, and I have a motorcycle to motorcycle trials Beta Techno 250 rev3 1997. Please help figure out what could be the problem: 1.When the simple operation of the engine (at idle, in gear) dual exhaust sound 2. How properly configured carburetor without stand? [Delorto] Inexperience jets shot down settings.