Allen hit it on the head! I REALLY needed the rear hand brake in WA (on hills etc.) and my 1974 was a late model and did not come with it. Thus the conversion! Love it, done with mostly eBay used factory parts. Will help you if you would like. Early 74's on down already have this. I would like the CDI but as Allen says the points are cheap and once adjusted and timed they need little maintenance.
If you would like me to help with you anything (finding or fixing) give me a call! You have my number :-) We always need another rider for our mine rides!!! Good luck.

Glenn

Glenn

1974 CT90 K5
2012 Honda Silver Wing
2005 Honda Gold Wing 30th Anniversary Edition

American Legion Riders Post 12
 Wickenburg, AZ

BZMF #091, English Chapter

" Keep brotherhood till die "