Would ordering a base gasket to inspect the top end of my 97yz125 be dumb? Or would it be better to just order everything and do the top end? Its a stock 97 and runs amazing and I want to keep it that way! I was thinking just getting the $$ and ordering the top end but if the plating was worn? My friends 98yz125 needed a replate at its 1st top end but he never cleans his airfilter nor does he oil it.