Hi I'm new to this forum, I've had a miss on my Super Rocket, at idle for a couple of years, but recently it got so worse that it quit on one side, I checked timing, changed plug, plug lead, and plug cap. It turned out top be the magneto pick-up. It was one I bought a few years ago, with a hexagonal base, a reproduction one. I bought a Lucas NOS pick-up for $28 from Rabers in San Jose, and the problem was solved. Idles nice too. Hope you've resolved your issue.