Being able to perform a sync on the throttle bodies is one of the keys to a smooth running bike. It requires minimal tools and about a half hour of your time. A manometer is the only part you may not have, but fear not it's easy to get/make. There are manometers out there for sale, but with 15 feet or so of clear rubber hose and a yardstick, you can make your own.
Here is the site I visited on how to make one, but basically you take your length of clear hose (1/8" or 3/16" inside diameter, and someone speak up if I'm wrong on size) and find the mid way point. Tape it to the yardstick with the middle of the hose in a loop at the bottom of the stick and run the hoses up to the top. Clear packing tape works really well to hold everything together, then just fill it up part way up with fluid. I used Sta-Bil so if/when it gets sucked into the engine there is nothing to worry about, plus it's thin so it gives great response and it's easy to see.
As far as tuning goes, MAKE SURE you have a fan sitting in front of your bike to keep it cool. Without this you will most likely overheat the bike and could destroy it. Take the bike for a quick ride and get it up to normal operating temperature then come back and park it on the center stand and set your fan up. The ends of the manometer connect to the vacuum nipples on the bottom of the TB's. Disconnect the hoses and move them outta the way if there are any there (they go to the emissions canister) pinch the hoses shut when you start the bike or you'll suck all the fluid out of your manometer. The process for the rest of the sync is covered in the link provided by MCollect is a great resource. The manometer replaces the twinmax they use, but both do the same thing. Hope this 'short'
post helps and doesn't scare you off!
