Thank you and thank you. I have checked all the coil/elect. connections, vacuum caps/intake rubbers, and I removed the hidden filter at the carbs. Just came back from a test run, 3-3 mile runs up and down the interstate, and the bike ran fine, couldn't get it to cut out. I'm wondering about the throttle position sensor, what exactly does/can it do to the performance? Maybe it's just mixture, with the air being pretty cool right now (50). Anyway, keep the ideas coming, I appreciate any and all help.