Thanks for all the tips.
I checked the battery and spark plug cables and everything seems snug.
I drained the carbs and got a bunch of black junk in my glass but I'm not sure if that was from the hose that I used or not. I then connected the the vacuum ports on the carbs and reran the breather hose that connects the carbs. It ran real well for about 500 miles and then started missing again.
I then drained the carbs again and everything came out clear but the bike ran better afterwards so it's probably a fuel problem. I guess the next step is to check the fuel.
Other than the engine missing, the oil leak, and the rusting frame I really love my Triumph (seriously).
