Greetings everyone, I need some help with my R65 1988 model since i am not sure where to look for the problem. I bought an old neglected crippled bike and restored it as a high end cafe racer. While restoring i got a new ignition coil, a new wahrle regulator and installed a lithium battery. Everything seem to be working fine until my battery failed with a juice leak. I though it was a problem with the battery so i installed a new one and started monitoring the voltage with my motogadget instrumment. The voltage seemed fine on my first ride with the new battery but after a few kilometers i noticed some voltage spikes reaching 15 and 16 volts. After a few days i repeaded the test and noticed that again after a few minutes of engine running at high revs i got 15 and 16 volts. I am trying to see if this is a regulator issue or a bad stator that when warming up causes a problem with the power generation. The obvious solution would be that its a bad regulator but the part is brand new. A friend of mine said that a bad stator with a bad current generation would cause the regulator to fail so even if i get a new regulator after a while i will have the same problem. Is that valid? Anyone has any ideas and how to diagnose if its a bad coil in the stator? Thanks in advance and happy new years eve.