I used to have a red Super road rocket 45 years ago I was a Rocker, Golden years .
If you are rebuilding the engine dont forget to check the ball bearing in the scavange pipe in the sump there is a little bar through the pipe that stops the ball bearing shooting up these wear and snap, to repair you have to split the crank cases .
If it starts bellowing smoke through the exhaust this may be the fault
Always wanted Super Rocket, had a Triumph 110 though, as you say golden years.