this is my first 4stroke bike. I traded a 95 yz 125 and $400 for it. its in pretty good shape, a bear to start, it has apd tripple clamp, answer fat bars, some sort of front brake caliper aftermarket, stainless brake lines, and I think someone has been in the motor not sure though but there is locktight outside the edge of the cam tensioner. what should I look out for or should be my first mod on this bike? it seems to have less low end grunt than I expected. the pipe leaks at the mid pipe connecter around the kickstarter, no big deal plan to fix that as soon as it is warm enough to ride it. any pointers at all would be appreciated.