I recently cleaned and resealed my carbs. The rebuild kit didn't come with the main jet o rings, so I picked some up at a hardware store. I'm assuming they are for plumbing. I also replaced the stock air filters with the pod style ones, and thus upped the main jet size as well. Now my bike runs just fine, except every once in a while will kill. Usually it starts right back up, but sometimes it will not, unless I let it sit for a while, almost as if it's flooded. Or it will start back up but only run for a minute, and only with the carb fully choked. I've been thinking it's the hardware store o rings causing the engine to flood, but I want to be sure before spending the time and money rebuilding them again. Thanks.