Rear Cylinder not firing under 4-5k RPM
After all I've done to the bike, my battery is still dying after nearly 15 miles. Just bought a new lithium battery for out the a** at Advanced Auto Parts with a 1-year warranty, and didn't make it 1 mile shy of the ride home. I thought the bike was running fine after running some seafoam through it a couple times after the rebuild with tuxedo mod and caltric stator&R/R. But I recently dropped the bike gently at a full stop, enough to make it stall out. No damaged caused to the exterior of the bike surprisingly. But after that, it seems the rear cylinder isn't firing except upon acceleration past 4000 RPM, and then once RPMs are maintained it ceases to contribute and slowly bogs the bike down. And once the rear cylinder is firing, the bike will try to idle at only 4000 RPM regardless of throttle position until the rear cylinder stops firing, then bogs down until I gas it. I had a little bit of the exccessive RPM idle when running seafoam before, but it went away after one tank of treatment. The bike won't hold an idle anymore after I dropped it.
I'm dumb founded at what the causes of these problems could be causing this problems. I sure hope it's not the stator gone bad already, but I haven't been around the tools to diagnose that one recently. But I wasn't having these kinds of issues before with a bad stator, so... Only other idea would be pick-up coils got damaged some how like with another members results with his tuxedo mod. It also looks like I'm leaking gas somewhere from the petcock and choke ports on the carbs. Idk if that's just the Seafoam, but I'm 100% not looking forward to a potential petcock and/or carb clean and rebuild. I don't see how a slow lean over would cause this.
Has anyone experienced this and have a remedy for it? I'm gonna do the pick-up coil relay mod and clearance adjustment today if I can get the day off, that'll give me the chance to see what the stator's all looking like. I also may have a short somewhere, but I can't seem to find where. Everything looks solid and clean. It's only a 10 year old bike with low miles and was garage kept most of it's life.
Purchased in August 2015 with 8,500 miles, currently at around 15,000 miles
Once earshaved, but recently reinstalled a modified surgetank and airboxes(like the sound and look better)
K&N air filters
Vance & Hines Cruizer Pipes
Blue-wire, Two-wire, and sidestand-switch modded
NGK Iridium plugs
New lithium constantly hooked up to a battery tender
Possibly dead, but brand new Caltric stator and R/R