Welcome to the Vulcan madness tibbs. Here is a link to the Vulcan verses aboout the ACCT and the ticking noise you are hearing. It is a bit unusual for the rear ACCT to go first, I believe, because of the angle it sits at. A few drops of oil usually sit inside the body and keep the screw threads and spring lubed.
There is a link in this article to the Grambo trick too. (quick, easy and no cost to test.) <BG>
Here is a link to a heavy duty replacement spring for the ACCT, and directions and pics for the procedure: http://www.tocmanufacturing.com/ACCT...structions.htm
Take a look at the directions to see a pic of the ACCT body, if you don`t know what you are looking for on the bike. You will find 2 of them, 1 on left side of bike, on the front cylinder, in "V" pointing at upward angle. The second one, on the right side of bike, on the back of the rear cylinder, pointing at a downward angle dowards the coolant overflow tank.
Many riders here have changed out the Automatic CCT for a Manual version (MCCT), that you will find on the TOC link.
Here is a link to a free downloadable Kawi vn750 service manual, from TOC too. It is BIG at 2395 pages, so when you download, save it to a file, to save time later when you need it.
If (or should I say "when") you have more questions, ask away. Lots of good folks and knowledgeable "wrenches" here to help when you need it.
Enjoy the ride.