Will a XR500 motor fit in a 200X frame?

[oldtoys72]

I found a XR500 motor from an 82 bike, im wondering if it will easily fit into an 83-85 200X frame, anybody know?!

[Shorty]

It is possible but It will require ALOT of mods. I have seen people put these motors in 350x's and and its a extreeeeamly tight fit.

[oldtoys72]

so probablly not reccomended then unless your extremly good at fabrication

[Shorty]

yea....I thought about putting a crf450 motor in A 1985 200x and just ran into to many problems.So I left the project for anather day