Thanks, I'll check sump tomorrow.
Further info;
Started engine.....no squealing. Revved it for a couple of minuted.....no squealing.
Pulled in clutch.....no squealing. Snicked it into 1st gear, no squealing. Let out clutch to pull away.....Squeal like a pig!
With bike still, pulled in clutch.....squealing, no change. Went through gears, squealing. Back to neutral....squealing.
Switched engine off. Re started engine, no squealing! Switched engine off, swore, kicked tool box......ouch!
Returned to computer.........
Even further info....couple of weeks ago I left the fuel tap on.....ended up with LOTS of petrol in sump. Drained sump, drained oil, put new oil in. It ran fine after the draining and new oil. There were no frightening deposits of metal in the sump at that point.
Cheers, Rick.