Does any one know of a bigger head/jug that I can slap on to my 200x with out too many problems? Need to keep up with Pappys 350x, and my stock 200x just aint cuttin it.

 

To my knowledge there is not a bigger jug that will work on the 200x. Bore the existing jug and put a high compression forged wiseco piston. Upgrade the exhaust, intake, and get a hotter cam. Run race gas. Don't forget to rejet the carb. You may also want to try some different sprocket combos.

It would be easier to sell your x and buy a bigger bike but you can make it pretty bad with enough work.
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If you are into custom work......I think there is a 4 valve head off of one of the XR200R dirt bikes that works(i think). If you can find one that trashed the lower end that would be a neat project.....may want to run it by "knowsalot" first. Madwolverine is pretty well correct on the rest though.

 

Just remember you are shy 150cc, that is alot of catchup to do. Just shut your dads fuel shut-off half way and then race him![img]i/expressions/face-icon-small-smile.gif[/img]