RV-90 Suzuki
bullhead,
That is a RV-90, an excellent motorcycle; not a mini-bike.
I've had several over the years and they really don't have any recurring issues other than age, now.
Suzuki also made a RV- 125; which was bigger all over.
They are really nice to haul behind a camper, trail-riding, or flea-market bike. As you know, the RV-90 is smaller; but will haul a full size adult; even a super size adult. Really good bikes.
If I'm not mistaken they were sold between, 1972-and 1975, you may have 1971 on the steering head, as it may be an early one. It doesn't show up on my books as being built in 1970.
Engine parts should be no problem at all, from Suzuki; that engine was used on other bikes also; or at least parts of it were on other models.
RV-90's are a great bike.
motocycle