I also have ordered the Leo Vinci full Ti and am getting some new fat main jets(205, 210, 215)...I removed the back-fire screen from the airbox & it BREATHES alot better, even with the full exhaust. But, I know she's runnin' a little lean now.
Dealer warranteed my leaky petcock with out seeing it, shipped me the part with my promise to send the bad one back, what great customer service from the boys at Upstate Cycle in Greenville, SC. Seems the leak was at the wiring in the back of the petcock, I had fixed it with a little JB weld, but I'll take the new one.
I have had NO trouble with my bike other than the petcock issue. I wonder if the problem bikes were being broken in correctly. I've been real easy on mine with 3 good heat cycles before riding the thing. The leaky coolant troubles me if its not a bad gasket, maybe it's a bad match of head to cylinder, though it would be hard to belive that would make it past QC.
Some help on the oil screen removal on the RT side on bike, I got the oil pump volutes out but couldn't get the back plate or the pump axle out...Any help would be apprciated, Your humble 2 stroke mechanic