New Regulator
Road Master
Joined: Jun 2010
Posts: 1,221
Likes: 4
From: Annemasse (border of Geneva-Switzerland) facing Mt-Blanc.
If your battery can spin the starter motor and your stator output seems fine then I would incriminate the regulator. Battery resistance will "clamp" the charging voltage but cannot set it to 14.5V.
Road Warrior
Joined: Jul 2012
Posts: 1,566
Likes: 55
From: Londonderry, NH
If the ground is good replace the regulator. Looks like you got a bad replacement. Any codes set??
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Stage III
Joined: May 2017
Posts: 3
Likes: 0
From: Florida
I am using a meter I got free from Harbor Freight which might be the problem, I did think of that. The ground on my bike is working well as far as I can tell, the connections are clean. The old regulator had a burn spot on the back and it was soft and spongy. The symptoms was that the 3 month old battery was dead and would not take a charge and the voltage going into the battery was between 16 andt 17 VDC. Will try a different meter to check voltage.
Seasoned HDF Member
Joined: Oct 2012
Posts: 11,198
Likes: 3,028
From: St.Louis Mo.
yes , try a different meter. have that "new" battery load tested it may have a internal short too. most of the time a regulator goes bad they just put out about 12 volts and that's enough to keep the bike running , but not enough to keep the battery hot enough to start the bike. somestimes an overchargeing problem will be created by a shorted battery and the regulator is trying to dump everything into it. that said your output should never be over 15.5. i would check everything else before spending any more money, including all your grounds.
Last edited by hardheaded; May 7, 2017 at 10:47 AM.
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