200x race parts??

[gazi89]

So this 85 200X i have that i got last spring and i just talked to the guy i got it from and he told me the owner before him raced it. I'm guessing it was flat track for the spot he said raced. I am gonna be taking the motor apart soon and was wondering what kinda parts i should look for to see if he did any motor upgrades. i know about the web cam shafts... That would explain why it has the supertrapp exhaust on it then and had the smaller front sprocket. any thoughts would help thanks.

[oldskool83]

back cut kicker gears and add a spacer so it does not slip, xr200 cam and carb 10.25:1 pision, will make a little more power and will still last. That's what I did to mine.

[gazi89]

how do i tell if its a back cut kicker gears and what the stock carb size and/or jet size? i just wanna know if there might be anything done with it when i take it apart.