Thu Apr 06, 2017 12:39 pm

Enthusiast
2007 LX150
Joined: 23 Feb 2017
Posts: 82

 
Enthusiast
2007 LX150
Joined: 23 Feb 2017
Posts: 82

Thu Apr 06, 2017 12:39 pm linkquote
Well, after riding around for two days and going through a few tanks of gas, the engine light on my recently purchases GTS250 still didn't go off. So I decided to take my voltage reader back over my battery.

When the scooter is off, I get readings of 12v. But idling, I now get 16-17v.

So, is this for sure the regulator? I have absolutely 0 knowledge of how to fix this, let alone anything of this nature on motor vehicles. I can't find a video or anything on this.

Any advice or guides that are as detailed as possible would be great because right now I'm bumming really hard.
Thu Apr 06, 2017 12:53 pm

Veni, Vidi, Posti
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Veni, Vidi, Posti
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Thu Apr 06, 2017 12:53 pm linkquote
yes. If it's going over 14.8, it's definitely bad. It should clip at about 14.5 or so. .
Thu Apr 06, 2017 1:53 pm

Hooked
GTS 250ie
Joined: 03 Jul 2012
Posts: 196
Location: New Hampshire
 
Hooked
GTS 250ie
Joined: 03 Jul 2012
Posts: 196
Location: New Hampshire
Thu Apr 06, 2017 1:53 pm linkquote
Re: Vespa GTS 250 Voltage Regulator
undying wrote:
Well, after riding around for two days and going through a few tanks of gas, the engine light on my recently purchases GTS250 still didn't go off. So I decided to take my voltage reader back over my battery.

When the scooter is off, I get readings of 12v. But idling, I now get 16-17v.

So, is this for sure the regulator? I have absolutely 0 knowledge of how to fix this, let alone anything of this nature on motor vehicles. I can't find a video or anything on this.

Any advice or guides that are as detailed as possible would be great because right now I'm bumming really hard.
I replaced mine a couple of years ago. It was a big job, not impossible, but a pretty extensive teardown.


Teardown


The culprit

Thu Apr 06, 2017 1:58 pm

Addicted
2009 LX 150, 2008 GTS 250
Joined: 19 Jun 2011
Posts: 844
Location: Birmingham, Alabama, USA
 
Addicted
2009 LX 150, 2008 GTS 250
Joined: 19 Jun 2011
Posts: 844
Location: Birmingham, Alabama, USA
Thu Apr 06, 2017 1:58 pm linkquote
In your previous thread (below), back near the beginning, I posted a link to a great Modern Vespa post to help with the whole repair. Check it out, you will find it is all you need to get the job done.

Finally got my scoot. 2008 Vespa GTS250!

Bill
Mon Apr 10, 2017 7:43 pm

Enthusiast
2007 LX150
Joined: 23 Feb 2017
Posts: 82

 
Enthusiast
2007 LX150
Joined: 23 Feb 2017
Posts: 82

Mon Apr 10, 2017 7:43 pm linkquote
can someone link me a good site to order the part from? i see sites on google but idk which ones are to be trusted
Tue Apr 11, 2017 1:19 am

Veni, Vidi, Posti
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Tue Apr 11, 2017 1:19 am linkquote
If you want the OEM Piaggio voltage regulator in original Piaggio packaging, we have it here:

https://scooterpartsco.com/gts-250/gts-250-electrical/voltage-regulator-for-vespa-gts-250-300-and-gtv-250-300-639110
Wed Apr 12, 2017 3:21 pm

Enthusiast
2007 LX150
Joined: 23 Feb 2017
Posts: 82

 
Enthusiast
2007 LX150
Joined: 23 Feb 2017
Posts: 82

Wed Apr 12, 2017 3:21 pm linkquote
Motovista wrote:
If you want the OEM Piaggio voltage regulator in original Piaggio packaging, we have it here:

https://scooterpartsco.com/gts-250/gts-250-electrical/voltage-regulator-for-vespa-gts-250-300-and-gtv-250-300-639110
cool! i ordered the part from you. whats the normal shipping time like? do you have any description on how to install it, once i get to the part on my bike and get it all apart?
Wed Apr 12, 2017 4:43 pm

Veni, Vidi, Posti
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Wed Apr 12, 2017 4:43 pm linkquote
When it comes to instructions for installing something, the best advice I can give is that it does come apart, so don't force it or you will break something. If the glove box won't open after you've put it back together, get another set of hands to help you line it up and, most importantly, get the workshop manual for the bike. It's free in the wiki section of this site, and you will be able to take your bike apart and put it back together again if you do it in order. get a couple of plastic or paper cups, and as you take screws out, label t he cup as to where they were. All the screws look alike until you are trying to put them back in...

As far as when you can expect it.... It's April.... let's see, next comes May, then June, we go on vacation in July and the supplier closes down in August, so.....

This is the actual part, we are shipping it tomorrow, so you should have it Friday or Saturday. It's a fresh one, Piaggio packaged it in February.





Wed Apr 12, 2017 4:51 pm

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2007 LX150
Joined: 23 Feb 2017
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2007 LX150
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Wed Apr 12, 2017 4:51 pm linkquote
Awesome! thank you for responding with urgency. I want to tackle this on the weekend. Taking apart the bike isn't what i'm scared of, i'm just worried about not knowing what to do. The provided link above gives some insight, but I'm just overthinking it. Hopefully it'll all be ok!
Thu Apr 13, 2017 9:46 am

Lurker
GTS 250
Joined: 13 Apr 2017
Posts: 2
Location: Southern IN/Louisville KY
 
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GTS 250
Joined: 13 Apr 2017
Posts: 2
Location: Southern IN/Louisville KY
Thu Apr 13, 2017 9:46 am linkquote
I literally just did this two nights ago. I bought a 2007 GTS 250 and after a few weeks I noticed the check engine light coming on while accelerating, and go off at idle. After researching here and generally, I ordered the voltage regulator.

I started to remove the body panels while I waited for the part, to get a head start. I am not good at this kind of thing and was reluctant for sure, but if you keep your calm, remember or write down where things go, it helps a lot.

With regards to the location, I kept thinking the Vespa engineers were playing a practical joke, as you have to do so much just to gain access to it. Once you do, the connection is very straight-forward, one cable going down to the right floor-board, another closer to the unit itself.

Once you get it in, be sure to try to start it etc BEFORE you but every screw back in, just in case. Mine started and after a test-drive, the check-engine light has not returned.

When removing the glove box, be careful of the circular piece around the key ignition...can't remember the official name. I had to put mine back on and you'll also want to test the glove box door and make sure it latches once you put the glove box back on. If not, some tweaking of the little lever behind it will be necessary.

I think that's everything....GOOD LUCK!
Thu Apr 13, 2017 11:08 am

Ossessionato
1979 P150X, 1983 P200E, 1988 T5, 1995 PX200E, 2011 Yamaha Fazer 600 S2
Joined: 02 Aug 2015
Posts: 3001
Location: Veria, Greece
 
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Location: Veria, Greece
Thu Apr 13, 2017 11:08 am linkquote
bc1965 wrote:
With regards to the location, I kept thinking the Vespa engineers were playing a practical joke, as you have to do so much just to gain access to it.
You should see how many parts you have to take out to reach the regulator on a Gilera Nexus. A GTS is a walk in the park compared to that...
Sat Apr 15, 2017 3:18 pm

Enthusiast
2007 LX150
Joined: 23 Feb 2017
Posts: 82

 
Enthusiast
2007 LX150
Joined: 23 Feb 2017
Posts: 82

Sat Apr 15, 2017 3:18 pm linkquote
after about four hours, two extra set of hands, and a lot of losing my patience I finally installed this damn thing!

I was doing it with my brother until his buddy showed up who is waay more mechanically inclined than the two of us. After that, we got in a better rhythm.


There's the little guy


the teardown


View of where it is behind the radiator.

⬆️    About 2 years elapsed between posts    ⬇️
Mon Sep 30, 2019 10:30 am

Member
2007 GTS 250
Joined: 30 Sep 2019
Posts: 10
Location: NYC, NY
 
Member
2007 GTS 250
Joined: 30 Sep 2019
Posts: 10
Location: NYC, NY
Mon Sep 30, 2019 10:30 am linkquote
Alternative Voltage regulator choice.
Have to replace the regulator on my very low mileage '07 GTS 250, and will be attempting to use a leftover CBR954RR unit. I'm hoping a Honda spec unit will prove more durable & grounding the VR may prevent future failures. Aside from the couplings and presence of a grounding wire, it appears identical to the OEM Piaggio unit, so I'm going to try & splice it in.

Not presently advocating this modification but a CBR954rr Regulator can be had on ebay for ~$16 delivered with the grounding wire, or $11 without - which would be a more direct install.

For those less adventurous, a direct bolt-in with the matching couplings can be sourced from ebay starting at $26 delivered. Will want to search on: "Piaggio MP3 Voltage Regulator".

Will follow up with results.
Mon Sep 30, 2019 2:57 pm

Member
GTS250ie
Joined: 09 May 2015
Posts: 29
Location: Ft Myers Beach
 
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GTS250ie
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Location: Ft Myers Beach
Mon Sep 30, 2019 2:57 pm linkquote
regulator
Replaced mine last year. A bit tedious with all the disassembly, but not really difficult. I recommend care regarding which screws go where.
Mon Sep 30, 2019 6:18 pm

Veni, Vidi, Posti
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Mon Sep 30, 2019 6:18 pm linkquote
Re: Alternative Voltage regulator choice.
ilikeike wrote:
Have to replace the regulator on my very low mileage '07 GTS 250, and will be attempting to use a leftover CBR954RR unit. I'm hoping a Honda spec unit will prove more durable & grounding the VR may prevent future failures. Aside from the couplings and presence of a grounding wire, it appears identical to the OEM Piaggio unit, so I'm going to try & splice it in.

Not presently advocating this modification but a CBR954rr Regulator can be had on ebay for ~$16 delivered with the grounding wire, or $11 without - which would be a more direct install.

For those less adventurous, a direct bolt-in with the matching couplings can be sourced from ebay starting at $26 delivered. Will want to search on: "Piaggio MP3 Voltage Regulator".

Will follow up with results.
When you get it, turn it over and compare the back of it to the OEM one you are replacing. You will see the difference right away. Maybe ask yourself what they decided to leave out.
Then compare the wiring and shrink wrap on the wiring to the one you are replacing. Keep in mind that it most likely failed QC in at least three factories with descending build qualities, that use that part in new vehicles, including the one that makes the absolute cheapest vehicles you can find. That's why it's $26 on ebay.
After you put it in, ride it around the block and put a voltage meter on it and declare that it works perfectly, start keeping track of all the electrical anomalies and component failures. If you ride it a lot, they should show up within a year.
Tue Oct 01, 2019 2:38 pm

Molto Verboso
Vespa GTS 250ie
Joined: 02 Jun 2015
Posts: 1229
Location: San Francisco Bay Area
 
Molto Verboso
Vespa GTS 250ie
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Posts: 1229
Location: San Francisco Bay Area
Tue Oct 01, 2019 2:38 pm linkquote
I did mine as well. Horrible job for such a simple item replacement. I noticed that there is no direct air cooling of the regulator and wondered if that was part of the problem. I plumbed in an airflow with guides from an gap in the bodywork. It's still working okay.
Tue Oct 01, 2019 11:04 pm

Hooked
2006 250ie
Joined: 13 Jun 2012
Posts: 443
Location: Bellingham, WA
 
Hooked
2006 250ie
Joined: 13 Jun 2012
Posts: 443
Location: Bellingham, WA
Tue Oct 01, 2019 11:04 pm linkquote
SCTLVR wrote:
I plumbed in an airflow with guides from an gap in the bodywork. It's still working okay.
I did this as well for my third VR install with a little foil tape designed for foam panel insulation. That was 15k ago.
Wed Oct 02, 2019 12:53 am

Ossessionato
2016 Vespa GTS300ie abs/asr/ess Settantesimo '70'
Joined: 11 Jun 2011
Posts: 3766
Location: East Anglia, UK
 
Ossessionato
2016 Vespa GTS300ie abs/asr/ess Settantesimo '70'
Joined: 11 Jun 2011
Posts: 3766
Location: East Anglia, UK
Wed Oct 02, 2019 12:53 am linkquote
Once you've replaced one regulator on a GTS bike, the second is infinitely easier. It takes me around 1hr 20mins from start to finish and that's with everything buttoned up and ready to ride. First time I did one took over 2hrs because I'd never taken a GTS glovebox off before. So what you guys have done has been a good learning experience for you. And, as you can see, it's not at all a bad or difficult job to do.
Wed Oct 02, 2019 6:29 am

Member
2007 GTS 250
Joined: 30 Sep 2019
Posts: 10
Location: NYC, NY
 
Member
2007 GTS 250
Joined: 30 Sep 2019
Posts: 10
Location: NYC, NY
Wed Oct 02, 2019 6:29 am linkquote
Re: Alternative Voltage regulator choice.
Motovista wrote:
ilikeike wrote:
Have to replace the regulator on my very low mileage '07 GTS 250, and will be attempting to use a leftover CBR954RR unit.
When you get it, turn it over and compare the back of it to the OEM one you are replacing. You will see the difference right away. Maybe ask yourself what they decided to leave out.
Then compare the wiring and shrink wrap on the wiring to the one you are replacing. Keep in mind that it most likely failed QC in at least three factories with descending build qualities, that use that part in new vehicles, including the one that makes the absolute cheapest vehicles you can find. That's why it's $26 on ebay.
After you put it in, ride it around the block and put a voltage meter on it and declare that it works perfectly, start keeping track of all the electrical anomalies and component failures. If you ride it a lot, they should show up within a year.
My jury rigged 954 regulator install was a failure - the scooter would not even power on, so ordered an el cheapo unit from ebay.

Should that one conk out after an unacceptably short service period, I'll consider an OEM unit, however in light of the fact that the original part failed after <1500 miles, an experience reported by other owners, and the frequency of VR failure reported on these threads doesn't impart much confidence in the original Ducati design. Also, IMO, they all come from the same Chinese factory(s), with the parts counter price reflecting all the middlemen markups along the way.

As an aside, I share the opinion that being adjacent to a radiator with poor ventilation, the original installation location likely carries heat & was a bad place to install it. Mention has been made about modification to improve circulation to the VR. Would anyone who's performed this upgrade be willing to share more about how it was done?
Wed Oct 02, 2019 2:03 pm

Ossessionato
2016 Vespa GTS300ie abs/asr/ess Settantesimo '70'
Joined: 11 Jun 2011
Posts: 3766
Location: East Anglia, UK
 
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2016 Vespa GTS300ie abs/asr/ess Settantesimo '70'
Joined: 11 Jun 2011
Posts: 3766
Location: East Anglia, UK
Wed Oct 02, 2019 2:03 pm linkquote
To be honest, VR's don't actually fail very often on the GTS's. The one owner GTS bikes that I serviced for folks all had very high miles on the clock but none had a voltage regulator replaced. My own GTS is near 3 years old and that too is fine. My Suzuki Burgman 400 had two voltage regulators in 5 years, as did my 1000cc Suzuki Vstrom (in 4 years). Worked on all makes of bikes & VR's do fail, but not often. I'd say Piaggio/Vespa are no different to other makes regarding that.

There's no need to jury rig extra ventilation for your voltage regulator. If yours is failing often it's not due to insufficient cooling. Mostly in situations like that it's often an earth or wiring problem. You might also want to check your generator output to make sure it's in spec. I've known generators to put out too much voltage causing vr overload, especially with an insufficient earth.
Thu Oct 03, 2019 1:09 am

Hooked
2006 250ie
Joined: 13 Jun 2012
Posts: 443
Location: Bellingham, WA
 
Hooked
2006 250ie
Joined: 13 Jun 2012
Posts: 443
Location: Bellingham, WA
Thu Oct 03, 2019 1:09 am linkquote
Stromrider wrote:
There's no need to jury rig extra ventilation for your voltage regulator. If yours is failing often it's not due to insufficient cooling. Mostly in situations like that it's often an earth or wiring problem. You might also want to check your generator output to make sure it's in spec. I've known generators to put out too much voltage causing vr overload, especially with an insufficient earth.
Hmmm. Well in that case, my foil tape must have solved the wiring problem.
Thu Oct 03, 2019 6:39 am

Molto Verboso
Vespa GTS 250ie
Joined: 02 Jun 2015
Posts: 1229
Location: San Francisco Bay Area
 
Molto Verboso
Vespa GTS 250ie
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Posts: 1229
Location: San Francisco Bay Area
Thu Oct 03, 2019 6:39 am linkquote
+1, likewise on my cooling ducting!
Thu Oct 03, 2019 7:14 am

Molto Verboso
GTS 300ie Touring 2013 - Signora D'argento & GTS 300ie HPE 2022 - Regina Arancione.
Joined: 03 Jun 2018
Posts: 1582
Location: Lancaster, U.K.
 
Molto Verboso
GTS 300ie Touring 2013 - Signora D'argento & GTS 300ie HPE 2022 - Regina Arancione.
Joined: 03 Jun 2018
Posts: 1582
Location: Lancaster, U.K.
Thu Oct 03, 2019 7:14 am linkquote
The GTS has been in production long enough now that if there was an over-heating issue with the VR, Piaggio would have addressed the problem by supplying additional ventilation or resiting it.
Thu Oct 03, 2019 7:19 am

Veni, Vidi, Posti
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Thu Oct 03, 2019 7:19 am linkquote
Re: Alternative Voltage regulator choice.
ilikeike wrote:
Also, IMO, they all come from the same Chinese factory(s), with the parts counter price reflecting all the middlemen markups along the way.
When you see the actual product side by side, you realize immediately that is not the case.
Thu Oct 03, 2019 7:30 am

Molto Verboso
Vespa GTS 250ie
Joined: 02 Jun 2015
Posts: 1229
Location: San Francisco Bay Area
 
Molto Verboso
Vespa GTS 250ie
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Location: San Francisco Bay Area
Thu Oct 03, 2019 7:30 am linkquote
Piaggio would have fixed it? Hahahahah.
Thu Oct 03, 2019 2:53 pm

Veni, Vidi, Posti
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Thu Oct 03, 2019 2:53 pm linkquote
Stromrider wrote:
To be honest, VR's don't actually fail very often on the GTS's.
I can't believe I missed opposite day again yesterday.
Thu Oct 03, 2019 10:56 pm

Member
Vespa GTS 250ie
Joined: 10 Aug 2019
Posts: 13
Location: Perth
 
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Vespa GTS 250ie
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Thu Oct 03, 2019 10:56 pm linkquote
I bought my 2011 GTS recently with only 2600km on it. I got it from a dealer on consignment - as I rode away the VR failed, the dealer did indeed fix it for free - they were awesome. So there may be something to GTSs VR failing after a certain amount of time. It can't be miles, because the engine on mine wasn't even broken in yet. Once the VR was fixed they did an update on the ECU too. They didn't have any details on what the update was for, but it's been running great ever since.
Fri Oct 04, 2019 1:26 am

Ossessionato
2016 Vespa GTS300ie abs/asr/ess Settantesimo '70'
Joined: 11 Jun 2011
Posts: 3766
Location: East Anglia, UK
 
Ossessionato
2016 Vespa GTS300ie abs/asr/ess Settantesimo '70'
Joined: 11 Jun 2011
Posts: 3766
Location: East Anglia, UK
Fri Oct 04, 2019 1:26 am linkquote
Generally speaking, it's well established it's not the siting of the VR that's the cause of VR failures. They can take a lot of heat. It used to be the VR needed lots of cool air, and indeed they do need ventilation, but not like they used to. They used to be mounted out in the cool airstream on bikes usually under the headlight or suitable place on the frame out of sight on older bikes. And they still used to fail. And they were often very small units. Now they tend to be very large devices by comparison to dissipate the heat. Many bikes have them tucked away behind fairings etc etc with sometimes minimal or hardly any airflow. It makes no real difference to the VR as todays VR's use different build and materials, and are much tougher and larger in order to take much more voltage, vibration and heat. The main issue causing failures is faulty manufacturer. Then there are some other issues regarding faults on individual bikes that increases the load on the VR and eventually leads to it's early demise.

Failures through faulty manufacture is not uncommon and there have been huge numbers of recalls by Suzuki, Yamaha, Kawasaki, Harley, Honda and all the big boys with this issue. Piaggio will be no different. When in the trade I replaced hundreds, yes hundreds of faulty VR's on Suzukis and Hondas alone in a one year period after a recall just a few years back. When you get a failure, it's usually quite easy to see why they fail too. Nothing to do with where the VR is mounted or how much airflow it has. When bikes are designed the cooling of the VR is carefully calculated. It isn't just thrown onto the bike in any old place. However, VR failure is not a common thing considering the number of bikes out there. 98% of bikes go through their lives with the original VR in service with no issues.
Fri Oct 04, 2019 1:31 am

Ossessionato
2016 Vespa GTS300ie abs/asr/ess Settantesimo '70'
Joined: 11 Jun 2011
Posts: 3766
Location: East Anglia, UK
 
Ossessionato
2016 Vespa GTS300ie abs/asr/ess Settantesimo '70'
Joined: 11 Jun 2011
Posts: 3766
Location: East Anglia, UK
Fri Oct 04, 2019 1:31 am linkquote
jiminytrickit wrote:
I bought my 2011 GTS recently with only 2600km on it. I got it from a dealer on consignment - as I rode away the VR failed, the dealer did indeed fix it for free - they were awesome. So there may be something to GTSs VR failing after a certain amount of time. It can't be miles, because the engine on mine wasn't even broken in yet. Once the VR was fixed they did an update on the ECU too. They didn't have any details on what the update was for, but it's been running great ever since.
Yes, this shows yours was a faulty unit from the factory. Nothing to do with poor airflow/poor siting of the unit. Glad you got it replaced ok. Enjoy your bike!
Fri Oct 04, 2019 1:34 am

Ossessionato
2016 Vespa GTS300ie abs/asr/ess Settantesimo '70'
Joined: 11 Jun 2011
Posts: 3766
Location: East Anglia, UK
 
Ossessionato
2016 Vespa GTS300ie abs/asr/ess Settantesimo '70'
Joined: 11 Jun 2011
Posts: 3766
Location: East Anglia, UK
Fri Oct 04, 2019 1:34 am linkquote
Re: Alternative Voltage regulator choice.
Motovista wrote:
ilikeike wrote:
Also, IMO, they all come from the same Chinese factory(s), with the parts counter price reflecting all the middlemen markups along the way.
When you see the actual product side by side, you realize immediately that is not the case.
Got to say, I agree with Motovista. If you look at the cheap Chinese units and make that comparison, there is no comparison, if you see what I mean. I load tested several Chinese units for a project I was doing a couple of years ago and several failed the load test and went up in smoke. The internal earths are poorly fitted and you cannot get to them to make them better. Pure rubbish I found.
Fri Oct 04, 2019 1:36 am

Ossessionato
2016 Vespa GTS300ie abs/asr/ess Settantesimo '70'
Joined: 11 Jun 2011
Posts: 3766
Location: East Anglia, UK
 
Ossessionato
2016 Vespa GTS300ie abs/asr/ess Settantesimo '70'
Joined: 11 Jun 2011
Posts: 3766
Location: East Anglia, UK
Fri Oct 04, 2019 1:36 am linkquote
Touring300 wrote:
The GTS has been in production long enough now that if there was an over-heating issue with the VR, Piaggio would have addressed the problem by supplying additional ventilation or resiting it.
Completely correct!
Fri Oct 04, 2019 1:38 am

Ossessionato
2016 Vespa GTS300ie abs/asr/ess Settantesimo '70'
Joined: 11 Jun 2011
Posts: 3766
Location: East Anglia, UK
 
Ossessionato
2016 Vespa GTS300ie abs/asr/ess Settantesimo '70'
Joined: 11 Jun 2011
Posts: 3766
Location: East Anglia, UK
Fri Oct 04, 2019 1:38 am linkquote
phaskins wrote:
Stromrider wrote:
There's no need to jury rig extra ventilation for your voltage regulator. If yours is failing often it's not due to insufficient cooling. Mostly in situations like that it's often an earth or wiring problem. You might also want to check your generator output to make sure it's in spec. I've known generators to put out too much voltage causing vr overload, especially with an insufficient earth.
Hmmm. Well in that case, my foil tape must have solved the wiring problem.
No, a new 'not faulty' unit cured your problem. It makes no difference whether you put extra airflow to it or not. The siting and airflow to the unit is carefully calculated by the manufacturer to meet the needs of VR. Any extra airflow you managed to arrange yourself is up to you, but not required.
Fri Oct 04, 2019 8:04 am

Veni, Vidi, Posti
GT 2.4
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Fri Oct 04, 2019 8:04 am linkquote
jiminytrickit wrote:
So there may be something to GTSs VR failing after a certain amount of time. It can't be miles, because the engine on mine wasn't even broken in yet. Once the VR was fixed they did an update on the ECU too. They didn't have any details on what the update was for, but it's been running great ever since.
I have noticed this about a lot of different electronic components in Piaggios, after replacing the CDI/Coil in two LX 50s with less than 500 miles each that went out within a week of each other. Right now, the voltage regulator for the GTS isn't as big a seller as it was a couple of years ago, but we can't keep the one for the carb. leader in stock. And in the US, these often go on very low mileage scooters.
I think Stromrider is right about the grounding on Piaggio scooters being less than ideal.
Sun Oct 27, 2019 8:27 am

Member
2007 GTS 250
Joined: 30 Sep 2019
Posts: 10
Location: NYC, NY
 
Member
2007 GTS 250
Joined: 30 Sep 2019
Posts: 10
Location: NYC, NY
Sun Oct 27, 2019 8:27 am linkquote
Prove it.
Stromrider wrote:
Motovista wrote:
ilikeike wrote:
Also, IMO, they all come from the same Chinese factory(s), with the parts counter price reflecting all the middlemen markups along the way.
When you see the actual product side by side, you realize immediately that is not the case.
Got to say, I agree with Motovista. If you look at the cheap Chinese units and make that comparison, there is no comparison, if you see what I mean. I load tested several Chinese units for a project I was doing a couple of years ago and several failed the load test and went up in smoke. The internal earths are poorly fitted and you cannot get to them to make them better. Pure rubbish I found.
Fortunately I did recently have both a defective OEM unit and a $26 ebay replacement next to one another, and aside from heavier gauge wires/insulation and absence of a "Ducati" stamp on the ebay VR, there was no discernible difference. Both the connectors (the brown one seems to be proprietary) and the housing were identical. Considering the dealer parts counter charges 6 x the price, and the factory unit that came with my scooter was a POS that failed after <1500 miles, I'd say the units Piaggio use are garbage & I'll stick with value parts.

Were an actual bench test performed on aftermarket VR's, I'd like to see the performance specifications that were produced, and photographic evidence demonstrating internal component failure within operating parameters factory units are able to withstand, otherwise I'm calling shenanigans. Until proven otherwise, I'm sticking with my assertion that they all (OEM Factory & aftermarket units) come from the same Chinese factory. But time will tell. This unit only has to last for 1500 miles to be superior to OEM.
Mon Oct 28, 2019 5:07 pm

Ossessionato
2016 Vespa GTS300ie abs/asr/ess Settantesimo '70'
Joined: 11 Jun 2011
Posts: 3766
Location: East Anglia, UK
 
Ossessionato
2016 Vespa GTS300ie abs/asr/ess Settantesimo '70'
Joined: 11 Jun 2011
Posts: 3766
Location: East Anglia, UK
Mon Oct 28, 2019 5:07 pm linkquote
The other point to bear in mind is that electrical components will either last a lifetime, or fail very quickly. There's often nothing in-between. VR's will run forever or fail at the beginning of there lives. Your computer hard drive will last year's, or fail in the first few days/weeks.

ilikeike, call shenanigans by all means. If you've had a good experience that's great. But it's not generally typical with those cheap VR's. Against my advice, customers asked me to fit too many of them to various bikes only to get them fail very early. You can very easily load test them yourself and see how poor some of them are. Instructions on YouTube.
⬆️    About 3 months elapsed between posts    ⬇️
Sat Feb 01, 2020 6:48 pm

Lurker
Vespa GTS 250ie
Joined: 01 Feb 2020
Posts: 1
Location: Oxford, MS
 
Lurker
Vespa GTS 250ie
Joined: 01 Feb 2020
Posts: 1
Location: Oxford, MS
Sat Feb 01, 2020 6:48 pm linkquote
2007 VESPA GTS 250ie
Hi All,
Wondering which tools were used to change out the voltage regulator??? I've ordered the VR and would like to have all the tools handy!!!


thanks!
Sat Feb 01, 2020 7:44 pm

Hooked
Vespa 300 Super GTS
Joined: 19 May 2015
Posts: 166
Location: Kansas
 
Hooked
Vespa 300 Super GTS
Joined: 19 May 2015
Posts: 166
Location: Kansas
Sat Feb 01, 2020 7:44 pm linkquote
Just replaced my Voltage Regulator
I just replaced Voltage Regulator and went for a long ride for the first time today and sure enough the darn light came back on and after 5 minutes it went away. I got mine from Scooterwest in San Diego. Man I hate to go back there and dig it up again because that unit is buried. Is there any other check I need to look out for? I have not checked the voltage and plan on doing that tomorrow
By the way I also just had my coolant flushed so I know my level is good I checked it
Thanks
Tue Feb 04, 2020 3:33 am

Hooked
Vespa 300 Super GTS
Joined: 19 May 2015
Posts: 166
Location: Kansas
 
Hooked
Vespa 300 Super GTS
Joined: 19 May 2015
Posts: 166
Location: Kansas
Tue Feb 04, 2020 3:33 am linkquote
Voltage regulator update
I checked voltage regulator and it seems fine when I rev the motor the voltage did not go crazy and climbed over 16 volts. It was steady around 14.6 volts with that said I am still wondering about the engine light. I went for a short ride yesterday and it did not come on so i feel better I guess I will keep monitoring it
Tue Feb 04, 2020 11:29 am

Addicted
GTS250
Joined: 03 Jun 2008
Posts: 609
Location: So. Cal.
 
Addicted
GTS250
Joined: 03 Jun 2008
Posts: 609
Location: So. Cal.
Tue Feb 04, 2020 11:29 am linkquote
Feeling pretty happy I havent had a VR problem in 63K miles
⬆️    About 2 years elapsed between posts    ⬇️
Tue Jun 21, 2022 12:14 pm

Member
2007 GTS 250
Joined: 30 Sep 2019
Posts: 10
Location: NYC, NY
 
Member
2007 GTS 250
Joined: 30 Sep 2019
Posts: 10
Location: NYC, NY
Tue Jun 21, 2022 12:14 pm linkquote
Quote:
time will tell. This unit only has to last for 1500 miles to be superior to OEM.
Well folks, the day has finally arrived. From the posts on the thread, I changed the voltage meter in my GTS250 at around 1,500 miles with a cheap Chinese crap ebay part, and hitting 3,004 miles today the replacement lasted longer than the original so I'll declare it that the ebay part is superior.

And dat's dat.
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