Did you check the alternator output too?
From: Brad DeVries <triangleforge@yahoo.com>
To: ST2 Owners <st2_owners@yahoogroups.com>
Sent: Sat, June 4, 2011 7:54:14 PM
Subject: [DucatiST] Yet another Voltage/Regulator Question
I started seeing some very odd behavior yesterday from the onboard volt meter I installed along with the Honda R/R that I put in my 1998 ST2 about eight or nine months ago. While I'm more than happy to blame the regulator, it's got some quirks that make me wonder what's actually going on. Here's the scenario:
After about five or ten minutes of riding -- with the voltmeter on the dash showing a happy 13.8 to 14.2 volts over 2,500 RPM -- the voltage will suddenly drop to 12.4 or lower at any RPM with one very weird exception: I can often get the Reg to "reset" (for want of a better term) by dropping the RPMs to idle at around 1,000 and re-accelerating, and it will run happily once again for a while, sometimes quite a while. Although it's a Honda part, I have it spliced into the Ducati wiring, including the infamous connectors (I had planned to cut them out, but it was working fine and other things were more pressing) so I opened all those up, cleaned everything and re-connected without solving the issue. When the problem finally occurred when I was near home, I tested the on-board voltmeter against the reading from my multimeter and it looks to be fairly on target.
Before I suck it up and buy yet another regulator, is there anything else I should check? And why on earth should I be getting that "reset" effect?
Thanks,
BRAD
The road goes on forever, and the party never ends. - Robert Earl Keen, Jr.
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