Originally Posted by TheOldFart
Mine looked like it might be touching, so I did the spacer mod. Installed the CFTB again, but it still has the same tail vibration.
If the shaft is touching you will likely find a black powder around the tip of the inner shaft that is contacting the skid bracket. The tip of the shaft drills a hole in the plastic when it makes contact.
mine does not touch but I have seen others that do.
I also had vibration with the CFTB installed but it went away when I adjusted the sliding weight and made sure the CFTB was pushed all they way into the main frame.