The bike has been sat 3 weeks and started with no problems but when I kicked it into 1st it shot foreward and stalled, this happened repeatedly and I had to give up in the end and get to work > I have ruled out the switch on the side stand as this normaly just cuts the engine without a leap foreward. It always has clunked into gear a bit heavyly the first time of the day but settles down after that. Thinking that the clutch cable needs adjusting but stuck other than that. Any ideas before I go home and start hitting it with a hammer would be greatly apreciated?

P.S, The neglected 18 year old CBR600 started with no complaints and got me to work on time.