It's very easy to replace the starter on a 1982 Yamaha Virago 750. It's in the very front cylander number 1 right behind the wheel.
That era was not a good one for Yamaha. I've worked on dozens of these and if there is a failure point, it's the electrical system.
In particular, the rectifier on this era of Yamaha has an outrages failure rate. There are now, not then, aftermarket rectifiers that are very affordable and much more reliable.
Overall electrical system design is fairly poor with physical layer issues. The battery breather hose routed past key components and would fall of the battery breather so that actual batter acid would get on these components and the results would vary from horrible to really bad.
I wouldn't recommend it.
Look for Honda's of that era. Super reliable compared to the competition at the time.