Author Topic: 2013 - 2015 V7 over voltage problem & poll  (Read 71067 times)

Offline spowell

  • New Egg
  • *
  • Posts: 28
  • Location: Long Island, NY
Re: 2013 - 2015 V7 over voltage problem & poll
« Reply #300 on: June 24, 2016, 07:24:13 PM »
Question for someone who knows more about mc electrical systems than I do:

So, I changed my VR last night because it was running at 14.1 at idle and 15.2v at 3000 rpm. Swap was easy and when done, I started the bike and my voltmeter indicated 13.8 at idle and 14.1 at 3000rpm. So, I thought all good. I went for a 2 hour ride today, (75% stop and go, 25% hwy with three stops) and when I got back home, I checked the voltage again. Now its reading 12.4 at idle and 13.2 at 3000rpm. So, a now little bit concerned. Seems a bit low.

Just put it on the tender and had a solid orange light (indicating less than 80% charged) and after 10 min solid green (indicating fully charged).

Bad battery or bad VR or something else?  I have a 2014 V7R with the original battery. Bike has been sitting for a week before I did the VR swap. Thoughts?
« Last Edit: June 24, 2016, 07:27:35 PM by spowell »
Guzzi Newbie
2014 V7R

Offline jas67

  • Gaggle Hero
  • *****
  • Posts: 5439
  • Location: Palmyra, PA
Re: 2013 - 2015 V7 over voltage problem & poll
« Reply #301 on: June 25, 2016, 08:08:09 AM »
Sounds like a bad connection or bad VR.
2017 V7III Special
1977 Le Mans
1974 Eldorado
2017 Triumph Thruxton R
2013 Ducati Monster 796, 2013 848 Evo Corse SE, 1974 750GT, 1970 Mk3d 450 Desmo, 1966 Monza 250
1975 Moto Morini 3 1/2
2007 Vespa GTS250
2016 BMW R1200RS, 80 R100S, 76 R90S ,73 R75/5
76 Honda CB400F, 67 305 Super Hawk, 68 CL175

Offline JProdun

  • Hatchling
  • **
  • Posts: 157
Re: 2013 - 2015 V7 over voltage problem & poll
« Reply #302 on: August 27, 2017, 07:26:04 PM »
Looks like i'll have to measure mine as well. Mine is a '14 with no issues at this point, but doesn't mean it doesn't exist.

So is there a plug and play replacement available at this time?

Thanks


Sent from my iPhone using Tapatalk

Offline Kiwi_Roy

  • Gaggle Hero
  • *****
  • Posts: 9796
  • Location: New Westminster BC
Re: 2013 - 2015 V7 over voltage problem & poll
« Reply #303 on: August 28, 2017, 04:05:54 AM »
Before changing out the reg I would inspect the grounding and the multi-way connector (1) very closely.
http://www.thisoldtractor.com/guzzi007/schematics/2013_V7_Series.gif
The wiring between alternator (23) and regulator (24) looks straight forward but sometimes there are hidden features

Don't forget to scrape and Vaseline the battery terminals.
Also inspect the 30 Amp fuse for discolouration of the plastic, the VIIs used to fry that up pretty good.
The schematic shows the battery lead connected Tee fashion, I doubt it's really like that.

I haven't had a close look at a V7 but I wouldn't be surprised if there's some simple fault causing the over Voltage similar to the VII
« Last Edit: August 28, 2017, 04:27:24 AM by Kiwi_Roy »
72 Eldorado
17 V7iii Special
76 Convert
Half a V9 Roamer

Moto Guzzi - making electricians out of riders since March 15 1921

Wildguzzi.com

Re: 2013 - 2015 V7 over voltage problem & poll
« Reply #303 on: August 28, 2017, 04:05:54 AM »

Offline mr_pacman

  • Hatchling
  • **
  • Posts: 174
  • Location: Calgary, Alberta, Canada
Re: 2013 - 2015 V7 over voltage problem & poll
« Reply #304 on: April 17, 2021, 12:38:14 AM »
Bumping this thread.

Did anyone find a plug and play solution that didn't require cutting wires (and then having to crimp/solder) or fabricating a plate to replace the voltage regulator?

I've got a North American spec 2014 V7 racer that is charging in the mid 15's.

This one appears to be a plug and play unit but curious if anyone has used it:

https://rmstator.com/en_us/mosfet-voltage-regulator-rectifier-for-moto-guzzi-california-vintage-1100-nevada-750-v7-special-750-2006-2014

Thanks
James

Offline mechanicsavant

  • Gaggle Mentor
  • ****
  • *
  • *
  • *
  • Posts: 565
  • Location: wales ma.
Re: 2013 - 2015 V7 over voltage problem & poll
« Reply #305 on: April 17, 2021, 06:41:06 AM »
While doing my pre purchase research I saw this issue mentioned. So , shortly after I brought my 16 V7 II home I fitted a voltmeter purchased from Aerostich it’s a wee unit that i tagged into the b+wire on the accessory plug up by the steering head . I’ve, so far not seen anything over 14.5 v . It cycles all the time between 12.5 v & 14.5 v . So , keeping my fingers crossed . 19k Mi. So far & I run a jacket heater in cold temps .

Offline SmithSwede

  • Gaggle Hero
  • *****
  • *
  • Posts: 2113
  • I don't want a pickle
  • Location: Dallas, Texas
Re: 2013 - 2015 V7 over voltage problem & poll
« Reply #306 on: April 17, 2021, 12:00:03 PM »
Ok, I’ll follow up on my prior post back in 2016.  I still have the original R/R that charges a bit high. Bike is now at 120,000 miles.  Nothing bad has happened; entire electrical system works great.   I tend to think Guzzi designed it this way and there is nothing to worry about. 
« Last Edit: April 17, 2021, 12:27:35 PM by SmithSwede »
Accentuate the positive;
Eliminate the negative;
Latch on to the affirmative;
Don't mess with Mister In-Between.

Offline Vagrant

  • Gaggle Hero
  • *****
  • *
  • *
  • *
  • *
  • *
  • Posts: 2132
  • Location: Gainesville, Ga or Green Valley Az.
Re: 2013 - 2015 V7 over voltage problem & poll
« Reply #307 on: April 17, 2021, 03:25:14 PM »
Didn't you have to replace several cam position sensors?
HE IS FREE WHO LIVES AS HE CHOOSES
2016 V7II, 2017 V7-III Blue special, 2022 V85 the fast red one! 2016 650 Versys
L-196, L-197

Offline Kev m

  • Not your normal Hombre
  • Gaggle Hero
  • *****
  • Posts: 30419
  • Yo from Medford, NJ
Re: 2013 - 2015 V7 over voltage problem & poll
« Reply #308 on: April 17, 2021, 05:25:00 PM »
Ok, I’ll follow up on my prior post back in 2016.  I still have the original R/R that charges a bit high. Bike is now at 120,000 miles.  Nothing bad has happened; entire electrical system works great.   I tend to think Guzzi designed it this way and there is nothing to worry about.

When you say charges a bit high, how high?
Current Fleet

18 Guzzi V7III Carbon Dark
13 Guzzi V7 Stone
11 Duc M696

Offline SmithSwede

  • Gaggle Hero
  • *****
  • *
  • Posts: 2113
  • I don't want a pickle
  • Location: Dallas, Texas
Re: 2013 - 2015 V7 over voltage problem & poll
« Reply #309 on: April 17, 2021, 07:11:27 PM »
Didn't you have to replace several cam position sensors?

Yes, I have.  But I’m convinced that the cam position sensors do not “see” system voltage.  I could be wrong.  The “failed” sensors were not open circuit or burnt, and passed the Ohm test.  I’m pretty sure my problems were bad connection or corrosion at the connector. 
« Last Edit: April 17, 2021, 07:12:22 PM by SmithSwede »
Accentuate the positive;
Eliminate the negative;
Latch on to the affirmative;
Don't mess with Mister In-Between.

Offline SmithSwede

  • Gaggle Hero
  • *****
  • *
  • Posts: 2113
  • I don't want a pickle
  • Location: Dallas, Texas
Re: 2013 - 2015 V7 over voltage problem & poll
« Reply #310 on: April 17, 2021, 07:13:10 PM »
When you say charges a bit high, how high?

15.37 v above 3,500 rpm
Accentuate the positive;
Eliminate the negative;
Latch on to the affirmative;
Don't mess with Mister In-Between.

Offline Kev m

  • Not your normal Hombre
  • Gaggle Hero
  • *****
  • Posts: 30419
  • Yo from Medford, NJ
Re: 2013 - 2015 V7 over voltage problem & poll
« Reply #311 on: April 17, 2021, 07:20:28 PM »
15.37 v above 3,500 rpm

Thank you.

If you would continue to indulge, can you tell me about the battery/batteries?!?
Current Fleet

18 Guzzi V7III Carbon Dark
13 Guzzi V7 Stone
11 Duc M696

Offline SmithSwede

  • Gaggle Hero
  • *****
  • *
  • Posts: 2113
  • I don't want a pickle
  • Location: Dallas, Texas
Re: 2013 - 2015 V7 over voltage problem & poll
« Reply #312 on: April 18, 2021, 12:36:09 PM »
Thank you.

If you would continue to indulge, can you tell me about the battery/batteries?!?

Of course.  Data = good.  And agreed—the only potential downside I see from arguable excess voltage is reduced battery life. 

My batteries always tend to last about 3 to 3.5 years.  I think that’s due to the Texas heat and the fact that I ride a lot.   So there are a lot of starting cycles per unit time.  I’m not sure you can validly compare how long a battery lasts unless you also know how much use it got. 

3 years is not unique to my arguably overcharging Guzzi.   Had the same experience on a Yamaha FJR, BMW F800S, and Ninja 250.  I had a voltmeter on the BMW and it was “normal” in the sense of providing about 14.7 max volts.   Batteries didn’t last any longer. 

I always buy Yuasa batteries.   Maybe I’d get better life from a different brand. 

Final thought.   A weak or failing battery is the source of many woes and heightens unreliability.    So I tend to be pretty aggressive about replacing a suspect battery since I figure I avoid a lot of hassle.    And I’ve twice had a battery totally and completely fail with almost no warning.   I figure one expensive tow service you avoid pays for a lot of batteries!
« Last Edit: April 18, 2021, 12:38:23 PM by SmithSwede »
Accentuate the positive;
Eliminate the negative;
Latch on to the affirmative;
Don't mess with Mister In-Between.

Offline Kev m

  • Not your normal Hombre
  • Gaggle Hero
  • *****
  • Posts: 30419
  • Yo from Medford, NJ
Re: 2013 - 2015 V7 over voltage problem & poll
« Reply #313 on: April 18, 2021, 12:39:49 PM »
Of course.  Data = good.  And agreed—the only potential downside I see from arguable excess voltage is reduced battery life. 

My batteries always tend to last about 3 to 3.5 years.  I think that’s due to the Texas heat and the fact that I ride a lot.   So there are a lot of starting cycles per unit time.  I’m not sure you can validly compare how long a battery lasts unless you also know how much use it got. 

3 years is not unique to my arguably overcharging Guzzi.   Had the same experience on a Yamaha FJR, BMW F800S, and Ninja 250.  I had a voltmeter on the BMW and it was “normal” in the sense of providing about 14.7 max volts.   Batteries didn’t last any longer. 

I always buy Yuasa batteries.   Maybe I’d get better life from a different brand. 

Final thought.   A weak or failing battery is the source of many woes and heightens unreliability.    So I tend to be pretty aggressive about replacing a suspect battery since I figure I avoid a lot of hassle.    And I’ve twice had a battery totally and completely fail with almost no warning.   I figure one expensive tow service you avoid pays for a lot of batteries!


 :thumb:

Thanks.

More to think about. But you've certainly made an argument for not worrying about it so much.
Current Fleet

18 Guzzi V7III Carbon Dark
13 Guzzi V7 Stone
11 Duc M696

Offline fossil

  • Gaggle Mentor
  • ****
  • Posts: 692
Re: 2013 - 2015 V7 over voltage problem & poll
« Reply #314 on: April 21, 2021, 05:53:54 AM »
Hmmm.... 2013 V7 Stone. First regulator, first battery. 32000 km. Even the first lamps are okay. However when I fitted the "super" lamps from Osram and Philips they lasted for 20 minutes...
Greetings from Germany!
Thorsten

 

20 Ounce Stainless Steel Double Insulated Tumbler
Buy a quality tumbler and support the forum at the same time!
Better than a YETI! BPA and Lead free.
Advertise Here