Why not change to an electronic ignition and ditch the points?
No real advantage if you know how to set points in my opinion. Nothing you can fix on the side of the road with a faulty electronic ignition. I did have a pack on an xs650 that actually belonged to paMco Pete and was his rider for 15 years that the engine was due for a top end but the pamco sparked so hot it would zap right through fouled plugs that wouldn't have left a stocker stranded hundreds of miles prior so it sold me on his xs650 setup. It did have upgraded coils as well to though...
That was my faithful '78/E XS650! Had that when I lived on the beach in NC. My wife to be and I would use it to ride down to the point and gather sea shells. We would then go pub crawling with it at night to all the really great bars along the shore line. It always got us home. It was also the development "mule" for the very first PAMCO ignition. Where is it now?
Hello Pete! First it got some new pipes as the Kerner that was on it had given up the ghost . The salty beach air explains alot!

Pardon the facial expression it was like chilly 35 degrees out if I recall Lol, .
I rode it like that for maybe a year and then she got a makeover-
Attached is a pic how you Prolly remember it and then after a year or so it got caffinated. I still have your seat!!!! If you want it for nostalgia let me know :-).
I sold it to some banker in charlotte 6 years ago for a ridiculous amoun of frogskins. I have seen it up for sell on craigslist once since then.