I had a red/white/black one back then too. I think it was a 72. I loved riding it. I bored it once and then resleeved it (larger pistons both times) and man did it get up and go. I used to eat up most everything 650 and under.
Fouled plugs something awful, before and after mods. I kept a half a dozen with me at all times...
Some lowlife creep stole it and all I got back were the jugs....
I still miss it.
