Volt meter
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6th Gear
Joined: Mar 2017
Posts: 14
Likes: 0
From: Illinois
Volt meter
89 flhtc volt meter jumps from 13v to 10 volts when i push the turn signal. I have already changed the voltage regulator and the stator and rotor and re grounded the battery to the frame. I am lost any help would be greatly appreciated
Seasoned HDF Member
Joined: Aug 2012
Posts: 17,750
Likes: 3,347
From: maine
Have you had your battery load tested ? I'm thinking not. When you put a load on a battery,asking it for voltage, the amount in the battery(voltage) goes down. This could be a sign that your battery is getting weak. Get it load tested to know for sure.
Stellar HDF Member
Joined: Sep 2013
Posts: 3,487
Likes: 606
From: USA
Is this happening at an idle? Have you had the charging system checked to see if it is working properly? The charging systems don't really charge at an idle. It is not uncommon to see the volt meter drop at an idle because of the brake light or turn signals. Have you checked using a digital volt meter? You may not have a problem. JMO
Outstanding HDF Member
Joined: Oct 2016
Posts: 2,530
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From: Wayne County, PA
Is it just the one side? Unless it drops for every light you turn on it isn't the battery. Check and see if your power wire for the blinkers on that side is contacting ground. Use a digital volt meter to check continuity. Of it beeps your grounding.
Thread Starter
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6th Gear
Joined: Mar 2017
Posts: 14
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From: Illinois
Are the terminals in the farring just regular connection terminals (replacement would be marine terminals )
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Elite HDF Member
Joined: Mar 2006
Posts: 3,673
Likes: 606
From:
harley volt meters a notoriously inaccurate. i checked the voltage at the battery with a hand held meter while i rode. do that, you will see a difference.
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Club Member
Joined: Jun 2007
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From: Bedford UK
Your bike is an Evo. We have Stickies on testing your electrical syatem in both the Evo section and Tech Electrical section, which will help identify if you have a charging problem and diagnose what it is. If it checks out fine then you have a search on your hands, using your multimeter, to chase down any bad electrical connections on your bike. It is over 30 years old and the usual suspects include every ground, plus harness connectors, all of which can corrode and create unwanted resistance.
Last edited by grbrown; Mar 19, 2017 at 08:05 AM. Reason: Spelling!
Thread Starter
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6th Gear
Joined: Mar 2017
Posts: 14
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From: Illinois
Thanks for all the ideas. I ran a jumper wire from the battery to the accessorie copper terminal in the faring and all the problems went away. My question now is how to run a relay for that port from the battery. Thanks