Cutting out at 7000 RPM

[Slednadz]

Sled is 2005 KingCat EFI.

Sled runs fine and smooth to 7000 rpm once the tach reads 7000 rpm it flattens out and begins to cut out (break up). Suggestions?

 

[Idcatman1]

Could be power valves. Check to see that the servo is working, take the plastic cover off the servo and chuck it in the recycle bin. I've seen broken cables or cables popped off the spool that couldn't be seen with the cover on.

 

[Slednadz]

Fixed, APV cables were out of adjustment