Can't find a pic.
But my first ride was a 1972 Yamaha R5C...two-stroke twin, 350 cc's. The precursor or the RD400...they used to call it an "organ-donor's bike."
(Pic is representative)
I didn't know a thing about bikes at the time. I bought it for the price and the apparent condition...it was cosmetically good and very cheap, and it started right up. Unfortunately it had a pinging problem that I couldn't get rid of; that I made worse with a crude carbon-head job I did with a butterknife that scoured the aluminum heads.
A tendency for the throttle to stick wide-open, coupled to a lack of a kill switch (didn't become required until a few years later) and the cost of the Y-shaped throttle cable with sliders, determined the fate of the bike. I sold it to another n00bie for about what I paid for it, and bought a Yamaha SR 500.
And got a nice case of road-rash and broken calcium when I got run off the road by a cage, far from home. That was it, for 22 years...until two years ago.