i have a 02.....2 biggest common problems ive heard and exsperienced is the rectifier burning or connector to it, and there trannys... if the rectifier is burn or the connector burn out it will cause the bike to not start or hold a charge....if its the connector its about a 12 dollar fix, the rectifier is about 90 i think from cahills, there is a way to check them with a volt meter, i dont know how... there good bikes just have to take care of them... mine is a drag bike and gets raced ALL the time and has been pretty reliable, need to figure out y all those wires are cut, thats not good...good luck bro if u get it....