The other day I went to start the bike and noticed the clutch would not pull.I didn't want to force it and break the cable.I thought maybe the oil was sticky because of it being cold but after the bike was warm it was still doing it.I worked it slowly until the lever was to the bar and it was stuck there too.After a minute it popped out and everything was normal after that.This seems to only happen when the bike is cold.Any Idea what it could be? I'm thinking cold/thick oil? Worn Shaft? Worn basket? Anyone?