Death rattle in my GSX

[Dadpole]

Nice To hear that you are mobile again. The suggestion to check out the cam chain is a good one. What was causing the rattle is still there, just not so audible now.
Have you checked your cam chain tensioner? They have been known to stick as they get older. If you have a manual, it will show you how. It may even be worth pulling it out (which can be a pig of a job) to give it the full treatment.

[MSTRS:Me]

I rang Veitches and they suggested a synthetic oil.
Tonight I changed the oil again but this time I used a Mineral Oil as suggested by another KB'er. Took it for a ride down the peninsula and it is now a lot quieter !!!
Might check out the cam chain anyway.

Bad advice!! Semi-synthetic might be ok in a bike the age of yours, but not a full synthetic. In fact, I doubt anything older than even 2000 should run full. The thing about full synthetic is that this type of oil is thinner than mineral oils when cold, but basically retains that state of viscosity under use and does not need to be changed as often. As engines and oils have continued to develop, you need to use an oil suitable for yours...ie, one that suited yours when it was new. In saying that, semi-synthetic may be ok but it must be bike specific (that wet clutch thing). Car oils in the 80s were fine in bikes because they did not have those 'friction modifiers' then. Some bikers use diesel oil and report excellent results.
Check the cam chain. It is most likely the cause of the rattle and it's a cheap fix to replace or adjust, compared to ignoring it. Wickle told you what to expect...