YAMAHA TOP DOG is what they call themselves. website is www.speedandsportinc.com. I have bought many ,many parts from them, parts are at full retail price, but if you need them they got it.

used them meself many a time, as they are the only ones who have it

Why is only years up to 77 listed? Only get to see one year for an XS400 and later XS650 parts unless you 'Click to View Yamaha Online Catalog', but that doesnt have parts for sale right? that goes through Yamaha dealer and definately in stock?

Thanks