i own a rs 250 1999 great bike heaps of fun but what can i do about the "power reeds" or something . can i change them to make the bike faster and what is the deal with the sprocket sizeing how does that work ????? big to small , small to big does it improve the bike or is the standard one better. i dont have that much knowledge yet but am slowly gaining i hope u can answer these questions to help me out cheers