i have two complete yfz450 quads that i am parting out. one is an 04 the other is an 05. both motors have had the top ends disassembled and have good bottom ends. top ends were torn down but are in great shape. i have an athena 480 big bore kit that was installed but never ran. also have a ported head that needs a valve. let me know what you need i can ship out of washington.