Hi, I am a new owner of a sprint ST 955i Year 2000. I bought it and parked it in a container, running it for several mins every 3 days , then once a week then yesterday the gear lever clunked and engine stalled immediately. I tried again - same thing , adjusted the clutch on handlebar each way, same thing just cuts out with a big clunk. Was working in gear before that. Very odd ? 2nd thing is that I can't adjust the chain to slacken it with the gadget tool provided. I have a workshop manual and slackened the centre lock nut , but using the bar it won't turn clockwise. This is a single swing arm with fat wheel, the chain should have half inch to one inch play but it has been greased up and is in one eighth inch to zero tightness all round. I am thinking that a shorter chain was fitted and tightened to maximum ? ,or there is a siezed mechanism inside the adjuster ?