So did you resolve the issue? I am having the exact same problem. everything has checked out voltage from rectifier is 14.5 volts but not at batterywow. I came up with another test. I had an old battery. it read 11.4 volts. I unplugged the 2 wire connector from rectifier. hooked up my 2 wires I had made with spade connectors and alligator clips to that old battery. now I have a weak battery hooked to my charging system. I am still running the bike off its own battery. this means the power from stator and rectifier now going to old battery and not connected to bike wiring at all. I start bike and I am sending 13.2 volts to the old battery. rev engine and I get over 14 volts.
He had a problem with his stator after going round and round with a few guesses, as many people are prone to do with electrical issues. This oftentimes makes it seem more difficult than it actually is.So did you resolve the issue? I am having the exact same problem. everything has checked out voltage from rectifier is 14.5 volts but not at battery
Battery has been checked ? What else could it be if you have 14 v out of rectifierI have a 04 yzf-r1. a couple of years ago the flywheel generator flew apart as it was original. replaced it with the new style. noticed some damage to the stator but not too bad I thought. it worked fine. fast forward to now and it is not charging. without checking anything I knew the stator was the most likely culprit. I have installed a new one and still not charging. battery @12.8 volts before starting and only 11.5 running with no change with acceleration. I unplugged connection on rectifier that goes to battery. measured voltage across plug terminals and it was 12.8 same as battery so wiring is ok. started bike and measured 14.8-15.1 volts out of rectifier at idle while unplugged
why don't I have 14.8volts at battery after I start it? could it be the regulator in the rectifier is thinking the battery voltage is too high and reducing the output?