All I can say is..if you have a question ASK IT..there are people on here that know more about this stuff then they probably should but that's a good thing.
I bought my first two stroke..it was a banshee and through this site and a clymers manual, I took it down to the frame, TOTALLY took apart the motor, upgraded parts, and saved alot of money and time by the people's advice.
I also made quite a bit off old parts on here..it's a very good resource for any rider, and even better when something is not right or broken on your bike.