For anyone that is getting fouled plugs, and the "bog" someone nailed one of the reasons in a prior post. Air Filter Oil. If your bike sucks filter oil you're not going to have a good day. Our wonderful blue thumpers have so much vacum that they can literally suck the filter oil through the carb. A trick that works good for me is to oil a few filters ( I have 4 now..geeeeez..) at least a day before my rides so they can hang and most of the excess oil that I may have added will drain. If anyone else has any filter tips, or anything that works for cleaning/oiling let me know. I'm always up for new ideas too.