I have a 200hp 2 stroke mercury. Was fishing yesterday and while running to another spot I looked down and my volt gauge was running at 14-15 on the gauge. If I pushed the motor trim button down it would take the needle back to 12 volts. But after a couple of minutes you could watch the needle start back up to 14-15 again. Any ideas of what the problem might be. I had a new regulator installed last year because the big battery was not charging. The battery is only two years old. I thinking it might be the stator. I just started a week of vacation and am hoping to resolve this issue today so I can fish the rest of the week. Any help would be greatly appreciated.

Thanks cyberhog