I have a A7ss 1970 and its been an up hill battle to find any parts if you need a crank rebuilt seek out Dave Ray at info@davessmallbodyheis.com ,ph 1-775-722-3294 nv,USA .If you A7 has a nice set of pipes send them out for rechroming , because you wont find any in new condition , unless you know some one in japan , in japan you can find even a almost new A7´s still . but getting them from there is really a fight .If you go to moto wasabi spice on two wheels and look at the A7 noted as a show stopper you will see my A7 ,but right it´s in tear down for a crank rebuild and a newer frame as my frame was found to be cracked . hopefully by febuary i´ll have it all together again .Don