Whats wrong
 

Stupid thing was going okay earlier needs a tune though, the engine jumped so the clutch and spur gear became misaligned, which was all sorted now when idling it starting revving it's nuts off almost going full throttle yet not moving anywhere, as soon as i give it a bit of gas it goes fine at the correct speed.

Is it the clutch or is it just really really out of tune, I got it yesterday fixed the pullstart up today so its only been run by me for about 3 mins.