My Carbtune (http://www.carbtune.com/
) came in the mail today, a week after I ordered it from Belfast, Ireland. The dollar is strong against the pound and I paid about 70.00 USD for the two column unit but YMMV.
Instead of mercury, the columns contain stainless steel rods that float up and down. Setting it up for the first use took a few minutes. There is a short length of tubing that fits inside of the vacuum tubing that needs to be cut to length and installed - that's it. The inner tubing acts as a limiter and not having a limiter makes the home made units clumsier to use.
I earlier installed the vacuum extension tubing from the throttle bodies (very important) so hooking the balancer up was simple. It comes with a reusable tie wrap that suspends the unit from the handlebars.
On the weestrom, it isn't necessary to remove the tank if the extension tubing has been installed. Just remove the fasteners that hold the various plastic pieces to the tank, and the two black, plastic side pieces. Then remove the 12mm bolt that holds the tank down and gently lift the tank onto its stand. If you fool with this and don't force anything you'll figure it out. You lift the tank to access the adjusting screw. Using my big hands, I don't have enough room to get a stubby phillips on the screw so I used a small, needlenose vice grip and gently clamped it to the screw. Fire up the already warmed up engine with slightly increased idle speed and make small adjustments to the screw. Mine was WAY OFF and it took almost a full turn of the adjustment screw to line up the stainless steel rods. And when they did line up the strom suddenly sounded like new - smooth and quiet and ready to ride.
This isn't the most elegant tool that I own but the cost was reasonable, it's easy to use, and it comes with instructions on how to maintain it. The bike runs better than it has in a long time and I consider myself satisfied. With 24,000 miles on the bike, I also installed a new factory air filter before I began this process. With throttle bodies synched and the chain adjusted, my baby feels young again.