So it's got noticeably worse over last two weeks. Example, if you turn the throttle, nothing happens for a good chunk of the twist and then you hit where it starts to rev. It's real annoying as when you roll off, it can catch you out as the revs cut well before the twist stops back. Also if you slowly untwist, it can get stuck and the engine just revs at 3-4000, so you have to give it a quick big rev to allow it to snap back to it's proper place. This is SUPER DOOPER irritating. What do? Can't find much on le Google cause I don't really know how to explain the problem without writing a paragraph.