XR CAM 1985 Honda 200S

**sweetip2000** · 03-08-2010, 12:08 AM

Can anyone give me info on replacing the stock oem cam on a 1985 honda 200S ?
I am looking for an XR cam. What year XR cam will fit a 1985 Honda 200S ?

Are there any other modifications that need to be made when installing the XR cam ?
Valve adjustment ect ?

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**jbmatt** · 03-08-2010, 12:22 AM

I have never heard of this, but would be interested in doing it to my 200S if it hops it up some. Anyone?

**atc500x** · 03-08-2010, 09:33 AM

A xr200 cam from 81-84 will fit,same head anyway.The cam can be changed without removing the head cover.Remove round valve cover,slack the valve adjustment remove timing chain and gear and the cam will go out.Same thing to install the xr cam.And readjust the valve.The xr cam help for higher rpm,but if you want a real different,swap the carb from the xr too.I have one this swap on my 200x and there is a great difference.

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XR CAM 1985 Honda 200S