hi.. just bought my 1986 k100rs has been stood since july 2001 ..ridden home 10 mile when clutch let out judders slightly on take of from first gear changes gear ok and no clutch slip will this go as the bike is used more ,,or is it something more serious,,,,regards.. jim..

Hi Jim,
My guess is the clutch disk is going to be pretty rusty and therefore high friction hence judders. I suspect you will find it gets better after a few miles and lots of changes, especially after lots of take offs from standstill.
Regards,
K-BIKE