It seems that every fix to one thing, leads to another problem... Here's the background: 1995 FLSTN Bike has been more or less starting when it felt like it. Turned out to be a loose positive battery terminal. While dealing with the battery terminal, I decided to install my nifty little phone charger that, OF COURSE, claims it won't run the battery down. Got ready to ride and came out fifteen - thirty minutes later after installing. Battery very low, but still cranking. Then it went dead. This was last night. Today, I charged the battery and got the bike started. Ran it for at least ten minutes and it seemed fine, but I noticed little puffs of smoke when rolling off the throttle. Very faint, almost not noticeable at idle. Shut bike off. Come back about thirty minutes later to see if battery was holding up. Started it again and ran it for several minutes, no smoke. Then it seemed to cough and then began running really rough and shut off. Bought a new battery and started it. While starting it, it sounded funny. Like a wheezing with singular pops as it tried to start. It did start, but then sounded like a single cylinder thumper. Bought new plugs, gapped 'em, and installed 'em. Same thing. Sounds like a single cylinder. I reached down and felt the front head, and it felt operational (heavier vibration), while the rear head felt less "active." I felt the exhaust coming out of the pipes. Bike has true duals. Front exhaust - warm. Rear exhaust - cold. The bike has a Crane Cams Fireball Hi-4E Ignition, model 8-3100. Haven't changed any of the settings. The bike just sounds like it's firing one cylinder. Pop-pop-pop-pop... There's no lope or anything. Anyone have any ideas here? I have a manual, but it's a Clymer (not so hot). Has some good info in the troubleshooting section, but I'd like to narrow it down. I think it may be something with the carb, etc. Not sure. Thanks, y'all!