Modern Vespa

Aparently a lot of ppl are getting this problem.

Mines done the momentary engine cut then fires up again a cpl of times.

Yesterday it had 1st service (1000km) and today it stalled twice. Had to pull over to restart.


Any ideas guys?

Fuel Pump?????

Spark plug wire connection

SDG

I agree. I used to have the same symptoms with Iris after I changed the plug. I made the mistake to apply dielectric greased to the end of the plug where the green boot goes and the thing was coming off at every bump. Just give the boot a little shove and see if the problem goes away.

My fuel injector went out, with similar symptoms. It stalled a few times in about 100 miles before it stopped working completely.

This has been going on for a while now, it's been brought up on a few gts forums here in the UK.

It's mainly new 2012 model bikes that are having this problem on both 125's and 300's...My last 2012 GTS125 had it also, what happens is that you are riding and then all of a sudden you loose all power for like half a second if that then it carrys on as normal as if nothing happened, it's sort of like an old bogging affect on a carb'd engine.

I no that past older models 1-2 years ago had issues with fuel pumps on the 250's and 300's in the past but i dont think this is the issue this time around, people are saying faulty regulators or coils but who no's????

But from what i keep seeing it is only happening on new 2012 bikes both 125's and 300's and a lot of people are getting these problems "A LOT" so something is going wrong and is not right.

+1

Dyeing ? What colour ?

Bill X

Brother in laws recent issue with similar symptons eventuating in a total fail was due to CDI issue. Replaced under warranty and all good again.

disconnect the kill switch. It's just a dodgy electrical connection that gets wind and rain running through it and then gets squashed and shoved by the seat when you have it open.

When people say spark plug connection, they are probably correct. The symptoms fit what you are experiencing exactly. The fuel pump is not the cause, a) because it is not hot here and b) the scooter starts immediately again.

What happens is that the spark plug cap detaches itself from the wire, usually because it has not been fitted properly in the first place. Take the plug cap off the spark plug (an open ended 19mm spanner may help as a lever) and screw it clockwise onto the wire. The plug cap has a threaded spike which screws into the centre copper core of the wire. My Beverley had the same problem and same solution. Would it be possible to give us some examples or link to them?

Here are two Links:

http://www.gtsownersclub.co.uk/forum/viewtopic.php?f=14&t=8502


http://www.facebook.com/groups/5210463534/?fref=ts (go down the page to 4th october, topic started by Bernhard Grunwald)

On a side note i was in my dealers shop today and while i was there they said they had two calls that morning from people that had brought 125's off them that also had the same issue, both again 2012 model scooters....It seems 100% these problems are going on with 2012 model 125's and 300's, everyone that are getting these same issues are all on nearly new and new 2012 engines.

Thanks for the links. All this stuff is anecdotal and these problems have not shown themselves here on MV, where there are far greater numbers of GTS scooters, giving a more representative sample. Most of the problems with power and cutting out have indeed been tracked down to the spark plug lead, which is a well known problem. My first GTS 250 did it and the nice Antipodean mechanics at Scootech diagnosed it and sorted it double quick. That was in 2007. I suppose we need to wait awhile and see if any more recent scooters have problems. I asked my local dealer today (the mechanic is a friend) and there don't seem to be any recurrent problems.

well the problem on these 2012 engines aint the spark plug lead, resason i no this as on my last 2012 GTS125 i had the spark plug/ lead and coil changed under warrenty then it done it again 2 days later....?

We all no about the old issues, Fuel pumps, injectors, kill switches etc etc on older GTS's that have had known common issues, but this is something new with the new 2012 engines being built and no one has got to the bottom of it so far?

Maybe someone on here has the answer so everyone can get there scooter sorted

But this is now a big problem as lots of people are now having issues so it will need sorting at some point?

IT is known to be happening, and im told, Reedspeed, are trying to find out the cause,
my local dealer has three known 2012 and 2011 gts 300 super,and super sport all with problem of cutting out
momentarily ,

i would think you know this because its happening to a fair few uk bikes,and Piaggio do know of the fault, and its definitley not the HT Lead or cap.

Most of the scooters on here aren't 125cc, granted, especilally the GTS variant. There isn't much information on them at all to be honest. Really? Is there any more being posted on the GTS owner's forum or here? Or is this just more FUD?

Yeah mate sounds about right, i heard about Reedspeed testing a few GTS's along with another shop as it seems to be ongoing now.

Mate the way you come across with your posts it's like you think people are making this stuff up or something, people are letting people no there is a known issue going on with new GTS's with links to prove this going with a good number of people and SHOPS having issues and then you make a remark like is this more FUD.....Unless of corse i am missing something here?

You no what let's all forget it we are all lying, no one is having issues none and piaggio-vespa no nothing of it and main dealers are not running tests because these problems aint going on, and not one of the countless people who say they have had this issue are not really having them, that should sound better for you as it's FUD.....

The fact is that there are not countless people saying that they have got problems, there are just a few, unless you can demonstrate otherwise. I am not accusing anyone of lying, rather asking for evidence of what you are trying to assert.

It is most definitely a common problem on brand new GTS 300s.

One of the guys who goes on our regular rides has a 12 plate that this has happened to several times and his dealer has had several others being taken back by unhappy owners.

It wasn't that long ago that lots of people were having issues with bikes not restarting when hot, and it took quite a while before the fuel pumps were acknowledged as a real issue.

Is it that hard to believe that there's an electrical issue on new machines?

Dr Zoidberg dont waste your time with it all belive me it's like talking to a brick wall, we are all wrong this aint a big issue and it aint going on.

Anyway i am sure piaggio-vespa will sort out this small issue that next to no people are having.

Stop splitting hairs. There is enough of us with the problem.

If you have anything helpfull to furnish us with fire away...

No not at all. Just surprising that they are coming to light now. If there is a problem, it doesn't seem to be affecting the US scooters so what is it? Has there been a different European management software released for example.? My 300 Super Sport registered in late 2010 has never so much as faltered in 4000 Km, for example. I'm just surprised there's not more mention of it on the GTS OC forums.

well ok not countless, but enough to make it a given and i do know off 2month old supersport 300 that doing it already been back to dealers ,but because its intermittent fault its being very hard to pin down,

and its no good you saying its not happening because it is,

there,s no reason to say the scooters doing it if it wasnt

Since a fuel injected engine requires constant, adequate power from the battery, I would strongly suspect that Piaggio will likely find that the problem has something to do with power delivery from the battery. Hopefully, they'll get it sorted quickly.

My first post in the thread attempted to help you...

Secondly, did this issue only start after the first service, as implied you your first post? Did they change your plug? Have they used the correct plug for the 300 engine (worth checking). Have you checked the lead to cap connection? Did they connect your GTS to the navigator? Did they do a software update? What is different from pre-service to post-service?

Someone above has also mentioned a fuel injector. Is there mention of a "duff" batch of fuel injectors somewhere?

My "less than 1000 miles on it" 250 died after the HT cap came lose from the lead so it probably left the factory like that and my "less than "500" miles 300 Super has had the cutting out for a second experience but my local tech extended the cable a little just to make sure it can move a little without breaking contact and it's not done it since.

Oddly enough the boyfriend of the new owner of my 250 had two engine out repairs in an attempt to stop his 300 doing the same and they havn't cured it.

Bill X

PS I'd listen to Doug's advice if I were you because not only does he have an extensive knowledge of Piaggio products he also has great technical ability to diagnose problems in a systematic fashion.

He knows his onions.

This is clearly a major problem which should not be countenanced on a so called reliable machine costing 4000 GB pounds. My 2012 Vespa GTS 300 with just 2000 miles on the clock has 'died' momentarily 5 times on a short commute tonight. I am very disappointed that this has now happened to my GTS.
Furthermore I have lost all confidence in its mechanical reliability. The weather was very wet however and the scoot is very wet. However this SHOULD NOT have caused this problem.
As I have a 2 year warranty I hope the dealer can sort it although I am not holding my breath. Any of you who say this not a widespread problem are I would suggest IMHO probably living in splendid isolation. Hopefully it is just a dodgy kill switch but this is not good enough.

. This is also a safety issue which means I cannot contemplate any long journeys until we have all found a cure.

Graham

There's been a batch of bad injectors but they are rare.. But they don't run well at all, so it's easy to identify...

Several dealerships are involved in trying to cure the odd machine with the stalling/OTCO issues, you might have noticed a change in ECUs on the newer GTS models... Funny coincidence?

All the foregoing is really useful guys and gals. I went on a trial run today and wound her up to around 65 (indicated 70 MPH). Had a few orange engine light episodes where the red "code" light also illuminated. These only lasted a few seconds.

The scoot had a comfortable night in a nice warm garage following a soaking yesterday so I would have thought any residual dampness would have disipated by now (what do I know)!! I thought it may be occuring when I hit the many bumps we have here in sunny Bath. But the orange engine lights seems to be totally random and intermittant events.

I will see my dealer next week and get them to do a full diagnostic check. I will let everyone know if I come upon a fix/solution.

In the meantime I have tried out some excellent ear plugs which work exceptionally well so at least my FACO midi-screen is now nice and quiet. They are 3M E.A.R ES-01-020 plugs and I paid about £4.50 for 20 pairs.

Maybe he does but he aint getting this one right, this is one he dont know or wont even acknowledge there is a problem with a
lot of 300cc for sure and some 250cc

So a few years ago I paid a guy £165 to totally strip my GT200's cooling system because the needle was buried in the red but the coolant wasn't boiling.

There was a little leak but not enough for it to lose fluid and over heat.

He rebuilt it but with lots of new bits couldn't fathom out what was making the needle sail into the red even straight after start up.

I took it to Doug and within 5 minutes he'd found a dodgy connection behind the clocks that causing the problem.

He knows his onions.

Bill X

Dodgy connections are basic repairs and first thing to try if
electrical faults are suspect,

and well done to him , but you could have done that yourself,,

i do all my repairs myself,
but the cutting out of these new bike,s is fault in manufacturing,so is difficult to find ,thast why piaggio have commissioned a number of dealers to try and find the fault,

Yes of course I could have done it myself that's why I asked the advice of someone who has more experience than me at finding electrical faults.

Have you ever asked someone advice on something that you didn't know enough about ?

Forgive me, you know it all already.

Bill X

Ok, new one, for here. "clocks" WTF Between the clocks? There's no multiple clocks. Loose connection between the gauges. That took to long.

It keeps me busy this English.

No i dont know it all by any means ,if its something i can do i,ll do it ,
but if some thing goes wrong it always best to try the simple things ,such as bike wont start first thing is check spark plug ,engine wont turn check battery,
,
i did have a good sounding in motor cycle repair and cars, my father was a auto engineer ,one my brother owns his own garage, my other brother also mends his own car and bikes

taking one these engines to bits is easy,,the onebike i really

struggled with believe or not was my harley sportster,
took

an hour to suss out how to take tank off i,ll post a pic of it

And I was brought up by Wolves.

Bill X

my shed at moment, just finishing this one

Wolf by association, a well known malady here.