200X and 200M crankshafts

[85atc200xRider]

I am about to start rebuilding and 85 200x. I found a guy who had a junk engine that I'm going to use the transmission out of, the only problem is that he said that the crankshaft and piston rod are siezed. I also have an old 84 200M engine laying around doing nothing, so I'm hoping I could pull the crankshaft out of that and use it on my 200X. Does anyone know if these bikes shared the same crankshaft?

[Howdy]

Nope, they will not inner change. The cranks are totally different.

[85atc200xRider]

Ok Thanks. I guess once i get the engine, I will check out how badly its siezed, or try to cut the piston rod off the crank without damaging the crank if its possible. If that fails does anyone know where I can pick up a crankshaft for cheap?