sometimes after starting the bike the tach will light up all the way across the annunciator panel, after a few seconds lights go out and the tach works normally. Has anyone had this happen before.
I believe your idle is a little low at initial start, (cold) idling under a 1000 rpm. I think this is a low oil pressure warning built into these bikes. when your tach does that again crack the throttle just a little and watch the tach drop to normal rpm's.