305cc Yamaha 196x???

[Warren]

In 1970 I bought a used Yamaha 305cc that had a 2 cylinder 2 stroke oil injected engine. I think it was a 1968 ish,or older, but I'm not sure.
Can anyone help me out with the year or model name?
It was a great bike for a young man to learn to ride and crash several times and walk away.
Thanks for your help
Warren

[Flying Dutchmen]

It is a Yamaha YM1. two cilinder two stroke. Build in 1967 and the big brother of the Yamaha YDS5 250.
Nice bike and very rare.