Author Topic: 2004 V11 Sport charging voltage  (Read 1309 times)

Offline oranges3

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2004 V11 Sport charging voltage
« on: October 25, 2025, 05:34:08 AM »
hey guys...
simple question:

my 2004 V11 Cafe Sport is reading 13.1-13.3 volts at idle (idle at 1100 per tach) and 13.7 volts at 2000 and above at the battery.

do i have a charging issue?

Main ground cleaned and tight, relays: Picker 30A, regulator has additional case ground to frame and wires to stator are clean with no evidence of excessive heat... same with the 30A fuse.

When i get back from a ride and hook up my Batterytender  harness, the green light is blinking usually before i can get my jacket off showing the battery is at 90% or better.

Am i chasing someting that does not need to be caught?
« Last Edit: October 25, 2025, 05:35:29 AM by oranges3 »
2012 ducati diavel
1995 Triumph Speed Triple
1998 Triumph Thunderbird Sport
2004 V11 Cafe Sport
1999 Confederate America GT
2018 Motus MST
2007 griso
1986 kawasaki ninja 600r
183 Honda VT500 Ascot (son's bike)

Offline guzzisteve

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Re: 2004 V11 Sport charging voltage
« Reply #1 on: October 25, 2025, 06:48:19 AM »
13.7 is normal charging. maybe battery is starting to get weak. Leave it off tender & see what happens w/it is what I would do.
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Offline oranges3

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Re: 2004 V11 Sport charging voltage
« Reply #2 on: October 25, 2025, 07:06:07 AM »
13.7 is normal charging. maybe battery is starting to get weak. Leave it off tender & see what happens w/it is what I would do.

Hey Steve!! Thank you sir...
Thats what i thought... so no more chasing ghosts...

What about the voltage at idle?

What should the idle be per factory spec and should I read it via guzzidiag or is the tach close enough?

thank you for the quick reponse.
2012 ducati diavel
1995 Triumph Speed Triple
1998 Triumph Thunderbird Sport
2004 V11 Cafe Sport
1999 Confederate America GT
2018 Motus MST
2007 griso
1986 kawasaki ninja 600r
183 Honda VT500 Ascot (son's bike)

Offline Wayne Orwig

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Re: 2004 V11 Sport charging voltage
« Reply #3 on: October 25, 2025, 08:49:46 AM »
You are fine. I am surprised that you get THAT much charge at idle. Those alternators don't have much output below 2000.
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