I am persuming the bike starts ok?
Ok its either your speens on your kick start or the spleens on the bit that comes out of the engine.
Take kick start off, one bolt use wd40 to loosen it but it may already be loose and one or both is proabably rounded off, it may just need to be tightened. They should act like a cog, the kick start fits over the piece that comes from the engine and so the kick start should be nice and tight and will turn engine. If the inside of the kick start is rounded off then this wont happen. Buy a new kick start. If you are kicking it over regularly and its making a noise then get it fixed before you do it again. If however you have rounded off the piece that comes from the engine then its a bigger job.
bb
February 2010