I just purchased a 1985 VN700 with about 10,000 miles. As the weather turns, I'm just getting to where I can get out and ride. I purcahsed a new battery when I bought the bike and have quickly learned that it's not being charged. Volts to the battery are only about 12.5. I really hope it's not the stator, but while inspecting the R/R I found that it has a lot of deposits on it. I'm going to roll the dice and purchase a new one and mount it externally or remove the GB. Do you think this is the right move?