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View Full Version : Need some help on the 200x top end on a 200 auto.



hang&rattle
01-19-2011, 12:18 PM
I have an 85' 200x motor for parts. And currently in my daughters 85' x is an 81' 200 seized up I think (can't pull the cord even). Want to get the top end of x put on the semi-auto bottem end at my old school shop. That way they can check for thing that may be worn etc.. I don't quite have the confidence to do this for my daughters bike. My question is this: Does the whole piston clear down go on? Will the wrist pin and everything hook right up? Just was asking what all needs to be done here. I'm sure the old mechanic will not have a problem, but I'd like to be able to expain what was done by the other members here. I can't find a link on it with pictures. Thanks fellas. I'll run it in tomarrow after I get all the info from you guys.

atc350xer
01-19-2011, 12:25 PM
Funny you should post this now... I was just thinking the same thing (200x top end on an S bottom). Looking forward to seeing some expert's replies!

atc500x
01-19-2011, 01:13 PM
All parts are direct fit....the difference between 200x head/cylinder and other 200 is the dimension on the cooling fines...
The angle and the duration of the cam is slightly differents,you can mix all part with other,no problem