450r help

[woodsracer144]

ok im pickin a 450r up tomorrow night and the top half of the rod brok off but it dont go down in the cases. all the gears are good in the bottom from what they know.

its got a full sparks exhaust on it.

i've been on 2 strokes all the time had a blaster then a 250r and now im gettin the 4 thumper...

i was wounderin if there were any really good set ups to run. im 17, im about 165 and i ride woods most the time...
i know a few guys that had a 480 kit and stuff... but i didnt know who well they ran...

i was also thinking about buyin a fully built motor from some where any one know how much that a good motor would run?

[esr250r86]

high compression piston,cam,and filter should make good power

[woodsracer144]

oh yeah forgot the i dont really wanna run race gas...