Hi guys. After changing the exhaust and the air filter on my Superbyke RSP i was running lean and the engine was overheating. As I got no help in my topic a bit underneath this one I've done loooooads of research and found out that the best thing i can do is simply put on a bigger carburetor. So, I got myself a Mikuni 30mm, fitted It with a 105 main jet and... Can't get It to work on the bike. :( First thing - The idle starts on 2k rpm then moves slowly up to 3k rpm. Second thing - Without full choke won't start. The first time I have fitted It after a little while the fuel started coming out of the air filter. Twisting throttle just kills the engine. Tried with many different needle positions and the best one seems to be lowest notch, but there's loads of white smoke coming out of the exhaust. Please help guys. I have no idea what to do with that. :/