Replacing twines on Yamaha swivel wake rack

[lekerstein]

Hey guys,

I recently picked up a Seadoo that looks like it has Yamaha swivel wakeboard racks. They are really nice, but don't fit our wakesurf board. I ordered some replacement fingers from bulletlines but I am having trouble disassembling the fingers (on my original rack) that are directly over the swivel assembly. As you can see in the picture, there is not enough clearance between the hex screws and the assembly to fit even a hex bit, much less anything to turn the bit. I started trying to take apart the whole assembly, but when I turn the knob, it resets itself after every rotation and just turns infinitely (I removed the backplate that was originally on the bottom). I have tried applying counter pressure to push the bolt up as I turn, but no luck. There is a little hole on either side of the black knob, as well as a screw directly under the knob that is inaccessible. I have tried poking a tiny steel pushpin into the hole wondering if they are a safety release mechanism.

Here are the pictures of my rack:







The original Yamaha swivel racks look like they have a pin that you just pull out to detach the back plate (see below), but there is no such pin on this rack.



Any thoughts? I'm running out of ideas!

Thanks!