hey. i bought a yamaha aerox 2011 version. i have a budget of 1400$ and am looking for advice on the best parts to increase the performance. i am lost in the jungle of choices and i have no practical expirience on what parts work optimal w eachother. i currently installed a new pulley and a new belf but the previous owner installed the 70cc kit witch by the performance im not even sure is on i havent checked yet. so if anyone knows or did a simular build please tell me what u did