30mA parasitic draw - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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Where does this wire go?
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post #1 of 10 (permalink) Old 06-13-2016, 01:52 AM Thread Starter
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30mA parasitic draw

Found a dead battery the other day and diagnosed it as a 30mA parasitic draw on the "main" fuse circuit. If I remove the main (30A) fuse the draw drops to 0. I've tried disconnecting the ignition module, the fan, every plug behind the headlight but not determined where the draw is.
I don't have an electrical diagram isolated by circuit.

Any suggestions of likely spots to focus on?

-Robert
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post #2 of 10 (permalink) Old 06-13-2016, 10:30 AM Thread Starter
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R/r. . Unplugged it and the draw went to 0. This is unfortunate because I thought I'd finally found a good brand of r/r. Other brands I'd tried over charge. This one charges perfect.

-Robert
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post #3 of 10 (permalink) Old 06-13-2016, 01:09 PM
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Is it a stock style regulator? Could be the sense wire.

I have no draw issues with my MOSFET. If I leave my bike for longer than a week I throw it on a tender, though.

1986 Kawasaki Vulcan 750
NGK Iridium Plugs #7803/DPR7EIX-9
Duralast Gold ETX15 AGM Battery
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Metzeler ME880 [110/90-19, 170/80-15]
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V&H Cruzers
VN750.com Grill Cover
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Emgo 23-92411 Handlebars
MOSFET FH012AA R/R


1990 Kawasaki Vulcan 750

1998 Honda VFR800 FI

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1989 Pontiac Firebird Formula 350
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post #4 of 10 (permalink) Old 06-13-2016, 01:40 PM Thread Starter
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Quote:
Originally Posted by thtanner View Post
Is it a stock style regulator? Could be the sense wire.

I have no draw issues with my MOSFET. If I leave my bike for longer than a week I throw it on a tender, though.
Yes, its the stock style. I've got a pile of r/r's at this point so I can swap it with another and verify if its an issue in the r/r itself.
This just started 2 weeks ago. This r/r was good up to that point and I was able ot leave the bike for weeks.

-Robert
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post #5 of 10 (permalink) Old 06-14-2016, 10:14 AM Thread Starter
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Swapping the regulator fixed the issue so it's in the regulator. Too bad because I was finally happy with the way this one charges and it was a direct fit.

-Robert
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post #6 of 10 (permalink) Old 06-14-2016, 10:50 AM
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Curious about the high charge rate you were getting. Numbers?

2003-21k mi
Shaved w/UniPK92+Stock Jets-TPE/MOSFET-Shinko Tires-AGM batt-bags-chrome-LEDs...more
__________________________________________________ ____________
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post #7 of 10 (permalink) Old 06-14-2016, 12:24 PM Thread Starter
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Quote:
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Curious about the high charge rate you were getting. Numbers?
With the crappy Celtric regulators I saw as high as 18v. I bought one and got two under warranty until I gave up on them. I have an "unbranded" regulator now that holds a fairly nice voltage but recently developed this parasitic draw.

-Robert
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post #8 of 10 (permalink) Old 06-14-2016, 12:33 PM
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Wow, yep, way too high for battery life.

2003-21k mi
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__________________________________________________ ____________
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post #9 of 10 (permalink) Old 06-14-2016, 04:06 PM
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Looks like the regulator ain't regulating.

That's one of the risk of cheap electronic parts. They look the same so you think they'll perform the same, but no.

Don't take my word for it. I'm just a foolish newbie.
When in doubt, just know that I am only joking around.

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post #10 of 10 (permalink) Old 06-18-2016, 11:46 PM Thread Starter
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I bought a DB Electric regulator. So far so good.
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