Just taken the bike out for her first good run after tidying her up a bit following a long time sat in the garage. The bike is a 79 GS750, standard airbox but with a new Delkevic 4 into 1 exhaust. It has been a long time since I last rode it, about 8 years or so, and my ageing brain can`t recall how well it would pull or what rpm when cruising. The Delkevic sounds snarlier than the old Motad I used to have on, but quite like the sound. At 60mph the revs were sat at 4000rpm, but seemed a little high ?. I vaguely remember she used to show 3500rpm at 60 but can`t recall and may be confusing with one of the other old bikes I used to have. She ran ok, smooth enough although felt a bit more "buzzy" than I recall. Just wondered if any one with a similar age 750 can advise ?.