1600 CC??? yikes. I had a monstrous little 2 stroke in ‘75,
the Yamaha RD 350, which would beat ANYTHING in the quarter mile up to an 850 Norton. It was all I needed. But naturally
NOT a touring bike. And it would foul plugs if you didn’t abuse it: the original Japanese masochist Bike.
I had a Yamaha RD350B 2-cyl 2-stroke.
Could beat anything.