What Ott and repair do I need?

[Butteboarder]

http://sendvid.com/fs8wjnzh

Here's a video of the problem. What would the users of this forum suspect the problem and fix may be?

http://sendvid.com/fs8wjnzh

 

[Brutus]

Appears to Broken power valve... Remove those two bolts and take a peak. Could be the spring and or cables broken as well....