So, I called my dad, who brought his trailer up, and we got the bike to his shop, where we started diagnostics. The voltmeter reading from the battery was 2.5 V - either the battery was defective (it's a Ballistic 8-cell lithium ion battery I bought new in November), or there was something wrong with the charging system. We put the battery on a charger for a few minutes, and it then had no problems started the bike - several times, in fact. But, with the bike not running, it was only showing 12.2 V, and with it running, it only went up to about 12.6 V (12.8 when revved). So we figured there was something wrong with the charging system.
I bought the bike used, and the previous owner had had some electrical problems. Here's what he says he did:
I installed the wiring harness, voltage regulator/rectifier, voltage gauge and motorcycle 12 volt supply my self. I was on my way to Santa Barbara whenmy motorcycle started sputtering. I was able to get off to a gas station that had a garage and for 5 bucks they recharged my battery and I was able to start up and go again. I noticed that my light was dim as I got into Santa Barbara so I put it on a charger while I stayed there for the weekend. Then on Sunday the same thing happened on the way home. After doing some research I found out that these years had electrical problems due to the wiringharness being to thin of a gauge between the battery, alternator and voltage regulator/rectifier so I added a parallel harness made by Joshua at Wiremybike.com along with a new voltage r/r, new volt gauge, and 12 volt adapter so I could charge my phone on the run. I have never had a problem since.
Here's what I saw once I removed the seat and the rear cowl:
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It looks to me like he put the VFRness bundle (link) on the bike, but can someone verify that the regulator/rectifier is upgraded from stock? I don't know what the OEM one looks like.
You'll also notice that on the side, there are 3 electrical connectors instead of 2 (the service manual shows 2, one which is white, and the other which is black). Can anyone tell me what the 3 different connectors are for?
Anyhow, you'll notice, if you look at the connector on the bottom left in the 3rd picture, that one of the yellow wires looks discolored? That was the first bad sign. We had to pry the connector apart, and were greeted with this sight:
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You can see all of the corrosion, and the discoloration of the plastic - it had gotten so hot that the plastic of the connector, and some of the insulation on the wires, had melted off.
We then looked at the connector on the far right, and saw this:
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Yay! More corrosion and melted components! The good news is that the wires from the alternator look good, and tested okay, which means the alternator coils are still fine. The bad news is that, even the thicker wires got so hot that they melted stuff.
So...what do we have here? It's looking like, at the very least, I'm going to have to replace the connectors, but at this point, I have no idea if the r/r is still any good. The service manual has instructions for testing it, but if it's not stock, and with the "upgraded" wiring, I'm thinking those instructions won't be very helpful. Can you tell me how to check the r/r? What should my next steps be?
Thanks.