There's a bit more info in this thread, including how to tighten the jack without the proprietary tool Ken made for it.

Oh wow I see vjmanzo was making a jack tightening tool? I'd definitely buy one! But for now I suppose I'll have to figure out a way to tighten the jack, I guess the idea is ...

Hey I noticed the output jack on my 94 Fly Deluxe is a bit loose, it's so loose that my cable falls out sometimes. I think soldering in a new jack might be something easy enough for me to handle, is there a brand of output jack that I can buy that is similar in size to the original jack that these ...

Okay just wanted to post an update: the new cylinder I ordered fixed the issue! I received it in the mail, lubed it with Radioshack contact cleaner (basically a light oil), and installed it and the guitar was working normally afterwards.
I really appreciate your help mmmguitar, you're a life saver.

I found that guy's online store, thank you!


Hopefully I haven't led you astray! In the meantime: Was the issue you were having a case of the threaded rod moving through the tension wheel up until a certain point where the whole assembly abruptly begins to turn, or were there other symptoms ...

@radguitar, I've had this happen with two different Flys; and each time it was binding due to the adjustment wheel failing to smoothly travel along the threads of the cylinder. Have you lubed the threads and/or checked for any scratches? With one Fly, cleaning and lubing the cylinder threads got ...

Hey guys, I just got a 1994 Fly Deluxe, and I noticed the threaded rod for balance wheel "spins with the balance wheel" when I try to turn the wheel to tighten tension. As a result I can't really get enough tension on the flat spring to get the guitar tuned. I included some pictures of the hole ...