Hello Gene, welcome to the forum, you will find a wealth of information here about your R65, sorta a "one stop shopping" of what the hell is wrong with this?
I too did not know much about BMW's when I started riding them, didn't need to, they always seemed to fire up and get me home without a lot of fanfare and maintenance. Like you said, it/we are 40 years older and both take a wee bit more maintenance than before.
If you need somebody to tag along to Lake Tahoe or check out the road from Arcata to Red Bluff, ring me up.