I bought a usted motorcycle head.What you must inspect before you buy a usted part

Things to do before resembling your top end.The mating surfaces should be inspected and cleand properly before installation.Do not think using Rtv gasket maker to fill in any inprofections on the gasket surface it will work .Ther is allot of heat'it expands and contracts and the Rtv gasket sealent will not work.This replacement usted head came with valves and springs.Rather chuck it.Replace valve seals'replace valves and the valve springs.Would not want to drop a valve ...