...welcome to the Wonderful World of Tuning!!! You're going to get your fill of it before you're ready to scoot again...lol..
...you're going to need to tune your carb's your fuel mixture, by doing plug chops after installing all these new components...
..DON'T RUN LEAN!!!...
..I hope the jet is not too large, or you're gonna have to resize it, or buy a smaller one..
..will also need to adjust idle mixture...
..don't know what your variator weights are, but the stock 6 gram weights may be a bit too heavy...a bit lighter will increase take-off speeds...
..clutch springs will also come into play for performance enhancements...
..But, with the things you stated, and everything else stock, you should get up to 45-50 mph indicated top speed downhill...
..good luck, take your time and happy tuning!!!!!!!!
peace
