Hi there.
Could be clutch
could be brakes seized on or could be belt problems.
Try these things.
Get off bike get put on stand and with a mate to help you does each wheel spin freely when off the road.
If they do then again on stand lift back wheel off road and start and does the back wheel go round fast when you rev it? Be careful you dont rev it too hard and it flies off the stand.
Does it rev freely when your riding or is it sputtering and feels like it runs out of petrol?
Have a good loom round the bike and ensure nothing is catching on wheel etc.
Check you oil and tyre pressures and also check you have enough petrol and if you have a petrol tap make sure on. Sounds obvious but it can happen.
Post back a reply when you have done above some people on here will help. Good luck.
bb
December 2009