You'll never know all the mechanical niggles until you have driven it on the road, got it properly hot and run it hard up to the rev limiter in all gears a few times. As said, I think you may well cure as many problems as you find by doing this; they don't take kindly to being laid up or only used occasionally (as me how I know.)
Have you compared your S2 side-by-side with another known-good S2? They should drive very smoothly, but mine has always sounded a smidge rough at cold idle but it's no better nor worse than any other one I have come across.
For what it's worth, I'd get the bodywork sorted out, a nice shiny new MOT certificate procured, and then drive it a bit. And don't worry about mechanical things not being quite as they should be until you have some miles under the wheels.
Oli.
Have you compared your S2 side-by-side with another known-good S2? They should drive very smoothly, but mine has always sounded a smidge rough at cold idle but it's no better nor worse than any other one I have come across.
For what it's worth, I'd get the bodywork sorted out, a nice shiny new MOT certificate procured, and then drive it a bit. And don't worry about mechanical things not being quite as they should be until you have some miles under the wheels.
Oli.
