Join Date: Dec 2013
Location: Los Angeles, CA
How did I break my charging system?
I seem to have screwed something up with the charging system on my 2014 DL650. Over the last few weeks, I've been installing a bunch farkles that I've had sitting around in boxes for ages. This last weekend I installed a Denali Soundbomb, an Eastern Beaver H4 Relay Harness, Skene Photon Blasters and some blinker genies to convert my turn signals to running lights.
I lifted the tank and ran the wiring for the headlight relay and horn, plugged the headlight relay into my 3CS, and tested. All good! I tapped two wires on the relay hardness for the Skene lights, hooked them up, then turned the bike on to test and...CLICK CLICK CLICK. The battery was dead. That was weird, but I figured I might have accidentally left the ignition on while I was working on it and killed it. So, I pulled the battery, put it on the charger and finished wiring stuff up. After it was charged, all the new accessories worked and everything else seemed good!
Fast forward to the next day - I rode the hour or so back and forth from work, and right as I pulled into my driveway the ABS light started blinking, and I noticed the headlight brightness fluctuating. After I parked and shut off the bike I tried to start it again, and sure enough, the battery was dead.
So, the bike isn't charging the battery correctly. It seemed to start as soon as I connected the headlight relay; something drained the battery quickly that day while the bike was shut off, so I figured it must be a short with the new accessories I had just wired up. I re-wired the connection at my fusebox (I connected with posi-locks as I didn't have the correct connector for my older style 3CS) and disconnected all my leds, skene controller, etc.
The bike is showing around 12.5 at idle with the engine running. If I rev the engine, the voltage doesn't rise much. If I pull the fuse for the headlights relay, it goes to around 13V and rises normally with RPMS. I thought maybe there was a problem with the relay harness, so I bypassed it and hooked the headlights back up normally, and the bad charging voltages remain. I thought the old H4 connector might be shorting out against something, but I taped it all up and the issues continue.
What else could I have messed up? It seems like it had to be something I did, since it started exactly when I installed the headlight relay. Would a bad battery show low voltage on a meter? This battery is 4 years old, and after running it down maybe I killed it? What else could I have messed up? I didn't disconnect anything else (on purpose) at least, but I'm trying to think of what could be causing a bad ground or other similar issue. I don't think it's the stator or R/R just due to the timing, but maybe? Could I have damaged something with a short? I commute daily on the bike, so I need to sort this out ASAP. Any ideas?
TLDR: Installed a H4 relay and some other electrical accessories and immediately drained the battery. Now bike isn't charging properly, and even with the new farkles disconnected voltage at the battery seems low.