Here is a chance for all you two stroke owners to rejoice! Rebuilding the top end can be done in an afternoon. This vid actually makes it look harder than it is. I think the Yamaha pictured has more parts than my Honda, but here it is. If you haven't done this yet and you own a 2-stroke, chances are, you will. I also added the link to a few pics of me changing out my top end. Enjoy!
My Top End Rebuild