Morning,
What is the mile limit for the primary chain? I'm sure it's 40K. Mine is up to 43K and making big clattery noises...
I'm thinking of stripping the engine and doing new chains, new rings, regrind valves, valve stem seals, gearbox bearing and replace any other seals I see. Can anyone think of owt else worth doing? Camchain adjuster should be OK, it was tackled a few years ago.
Finally, you can't get primary guide rubbers. Is it recommended to shim them up a bit if they're worn? Be nice to shut the rattles up, at least for a mile or two.