Charging system ground question
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Cruiser
Joined: Jun 2015
Posts: 104
Likes: 2
From: Olympia, WA
Charging system ground question
My ‘75 has a brand new battery and regulator, getting plenty of juice from the alternator, and 13.5-14.5 DCV to the end of the regulator wire.
The problem is that when conected to the battery, it shows little to no charge going in. The battery reads about 12.5 and doesn’t increase at all with throttle.
I replaced the regulator from another brand new one just in case. Battery load tests well. Stator is not grounding out (per manual procedure), and putting out 50+ ACV at idle and increases with throttle.
Bike otherwise runs great. I’ve checked all grounds and haven’t found a single problem.
could something in the wiring setup cause the juice from the regulator to bleed off and not fill the battery?
Running basic wire setup through circuit breaker. 3 position key switch. reregulator straight to battery positive. Thanks.
This is the current harness setup.
The problem is that when conected to the battery, it shows little to no charge going in. The battery reads about 12.5 and doesn’t increase at all with throttle.
I replaced the regulator from another brand new one just in case. Battery load tests well. Stator is not grounding out (per manual procedure), and putting out 50+ ACV at idle and increases with throttle.
Bike otherwise runs great. I’ve checked all grounds and haven’t found a single problem.
could something in the wiring setup cause the juice from the regulator to bleed off and not fill the battery?
Running basic wire setup through circuit breaker. 3 position key switch. reregulator straight to battery positive. Thanks.
This is the current harness setup.
Last edited by Chris Sigo; Oct 20, 2018 at 08:21 PM. Reason: Adding photo
Seasoned HDF Member
Joined: Jul 2014
Posts: 8,590
Likes: 3,361
From: Cental, MI
Unloaded.. ie unhooked from battery... means about nothing... The regulator Must put out Juice under load... Battery
Betting a New Regulator cures yer woes... Unless your procedure is amiss... or I misunderstand your method...
Betting a New Regulator cures yer woes... Unless your procedure is amiss... or I misunderstand your method...
Road Captain
Joined: Nov 2016
Posts: 628
Likes: 112
From: Sparks Nevada
All I can say is make sure regulator ground is solid also there should be added grounding tab on under side regulator run heavy gauge wire direct to motor ground. If no success regulator bad. Good luck.
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