i got a 07 400ex. the clutch wont disengage. i can put it into first, hear it click, see the chain jump, but no power to the wheels. it just revs up. no problems cranking or nothing like that. also clutch lever is twice as tight as it was earlier today. i was trying to pull a load with it, maybe tore somethin up. any help?

 

The clutch cover should be removed and the clutch checked while the engine still runs.. Sounds like the springs are either loose (clutch spring bolts broke) or the springs broke , or somehow the pressure plate came out of the clutch center..

Here is a picture of the 2007 400EX clutch