When Barry Sheene was let go from Suzuki, he briefly campaigned a Yamaha OW31 with AKIA sponsorship and direct help from Yamaha UK. He flirted with a factory ride from Yamaha that season but didn’t get it but he got lots of special parts. Unless this is a copy, that the bike.
You know, the 1st guy might be right, it could be an early TZ500 which for privateers was a TZ750 case with 2 sets of tz520 barrels strapped on instead of 375″s.
Motorcycle Photo Of The Day 
It Barry Sheene’s TZ500!!!!
When Barry Sheene was let go from Suzuki, he briefly campaigned a Yamaha OW31 with AKIA sponsorship and direct help from Yamaha UK. He flirted with a factory ride from Yamaha that season but didn’t get it but he got lots of special parts. Unless this is a copy, that the bike.
You know, the 1st guy might be right, it could be an early TZ500 which for privateers was a TZ750 case with 2 sets of tz520 barrels strapped on instead of 375″s.