Should be available at Wall Mart or just about any auto parts store around. As for which ports, each TB should have a vacuum port on it, either capped off or with a short vacuum hose attached. Buy a long piece of vacuum hose to use for this as anything on the bike will be too short. Pour about a 1/2 cup or so of seafoam out into a cup or something and use the vacuum hose to suck it up, doing each Tb one at a time until the cup is empty. You could also rig up some vacuum hose with T connectors to get all of them at the same time now that I think about it. Suck up enough to slow down the rpms but not stall the bike. When you get to where the cup is almost empty, suck up the seafoam until the bike stall and then let it sit for about 20 or 30 minutes before restarting. when you restart, you might see very heavy white smoke start pouring out the exhaust, this is totally normal and will clear up as you let the bike run. Pour anything that is left in the can into the gas tank and you are done.