I saw this photo on the web and fell in love. Here's the info that was with it.
750 Trackmaster Yam. One of 3 built in '71-'2 at Mike Lacoco's Yamaha of Alamagordo dealership. Built for their rider, 'Wildman' Joe Pierce. Joe loaned me this one in the summer of '76. I raced it in the Pikes Peak Hillclimb and at Sertoma International Speedway, Las Cruces, NM. It is now owned, freshened up and displayed at bike shows by a California gentleman.
Not sure about those Jubilee clips hold the headers on, but the rest of it is dreamy. It's been restored now. I'll post details soon.
via facebook
Tyre porn warning! Gary, in order to participate in the Vintage antics, you must have this bike. slope game
Tyre porn alert! You need this bike Gary, to come and join in with the Vintage shenanigans. More candy apple metal flake is required in the class.