Had my waverunner out for the first time this year and the MAINT light came on with LOW 12v and was beeping. I continued to ride than brought it in. I replaced the battery and idled out of the bay with no problem,soon as I throttled down I am getting a MAINT light and it beeps. When I go back to idle all is ok. I disconnected battery reconnected and same thing....idled all the way back in. Could this be a damaged Rectifier/Regulator? Any help is appreciated.