Brand new Vespa....Not starting
Post Reply    Forum -> General Discussion
Author Message
Member
Vespa Primavera 50cc
Joined: 07 Jun 2020
Posts: 24
Location: Canada
Fri Jun 26, 2020 8:24 pm quote
Hello everyone,

Was looking forward to my daily ride when all of a sudden my 2020 Vespa Primavera 50cc did not want to start.

It is only 1 week old with 60 odd miles on it. I used it during the day with no issues. A few hours later, it did not want to start. I tried 4-5 times, it was close but no cigar.

I have no carb, Iím thinking a vacuum leak? I will contact dealer ASAP. However, your insights and help are greatly appreciated!

Fun fact, a friend has the same Vespa, new as well and had to try 5 times for it to start one day.

Is this a common issue on such new models?

Thanks in advance!
Veni, Vidi, Posti
LX190, Primavera
Joined: 12 Oct 2007
Posts: 7009
Location: New Zealand
Fri Jun 26, 2020 8:25 pm quote
Check the kill switch?
Member
Vespa Primavera 50cc
Joined: 07 Jun 2020
Posts: 24
Location: Canada
Fri Jun 26, 2020 8:29 pm quote
Was hoping it was that, but nope!
Hooked
GTS 300 ABS, 2018
Joined: 07 Jun 2020
Posts: 164
Location: Finland
Fri Jun 26, 2020 10:33 pm quote
Hands off from the throttle
Just reminding that injected engine tolerates absolutely NO throttle when starting, so keep your hand away from throttle. If you don`t, it will wet your sparkplug and starting becomes impossible. Then you must wait a minute or two before trying again.

Since it is a brand new vespa, it cannot be too dramatic. Loose hose or battery lead could cause bad starting which gets worse if you try to give gas. Check, wait and start again.
Hooked
50cc Beo, BigBeo
Joined: 30 May 2015
Posts: 282
Location: Chelyabinsk, Russia
Sat Jun 27, 2020 1:06 am quote
All of my injected Piaggio engines totally tolerate throttle during starting, especially in cold weather or just after air filter re-oiling. Nothing wrong with opening throttle if the engine does not start without it. It just gives more gas which was always a method for easier starting (considering that carb choke is just a thing which adds some extra gas too)
Moderaptor
The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300
Joined: 26 Aug 2007
Posts: 39540
Location: Pleasant Hill, CA
Sat Jun 27, 2020 11:20 am quote
Jah wrote:
All of my injected Piaggio engines totally tolerate throttle during starting, especially in cold weather or just after air filter re-oiling. Nothing wrong with opening throttle if the engine does not start without it. It just gives more gas which was always a method for easier starting (considering that carb choke is just a thing which adds some extra gas too)
The newer ones do NOT allow any throttle while starting. Older ones, yes. I'm not sure when the new regime came in - a couple of years ago perhaps? It might be as long ago as when the ABS/ASR became the norm, and might be related to that.
Hooked
50cc Beo, BigBeo
Joined: 30 May 2015
Posts: 282
Location: Chelyabinsk, Russia
Tue Jun 30, 2020 3:54 am quote
What happens if you open the throttle a bit during cranking??
Member
2020 Vespa 300 GTS Super Notte HPE
Joined: 19 Jun 2020
Posts: 43
Location: St. Louis, MO
Tue Jun 30, 2020 5:12 am quote
Not sure if the 50cc's are like this, but my 300 won't crank if it's on the side stand.
Veni, Vidi, Posti
2008 MP3 500, 2013 BV350, 2020 Vespa Sei Giorni
Joined: 13 Oct 2012
Posts: 8718
Location: Ashburn, Va. Home to the Internet
Tue Jun 30, 2020 6:06 am quote
Jah wrote:
What happens if you open the throttle a bit during cranking??
It disengages the starter. And won't even try engaging starter if the throttle is open at all when you hit the starter button.

2008 MP3 500 does not do this
2013 BV 350 does
2020 Vespa Sei Giorni Does
Hooked
50cc Beo, BigBeo
Joined: 30 May 2015
Posts: 282
Location: Chelyabinsk, Russia
Tue Jun 30, 2020 7:39 am quote
Really interesting, thanks! Huh... wish I ever see one of those new scooters.
Member
Vespa Primavera 50cc
Joined: 07 Jun 2020
Posts: 24
Location: Canada
Tue May 04, 2021 9:56 am quote
Ciao,

Update: I'm still having the starting issue from a warm start.
Another Vespa owner in my city had the same problem and the dealer changed the "drop/fall sensor". When the dealer opened the original sensor, it was full of corrosion.

Since we both have 2020 Vespa's, these corroded sensors are coming from the factory.

Would any experts here confirm that this corroded sensor could be the cause for the Vespa not starting when the engine is warm?

P.s The dealer is giving me the runaround in order not to change this piece. Is this because Piaggio does not want to take responsibility and cover the cost for a corroded sensor straight out of the factory?

Grazie!!!
Hooked
Supertech 2019 (EURO3/APAC)
Joined: 17 Nov 2020
Posts: 192
Location: Australia
Tue May 04, 2021 4:24 pm quote
here;s a thought

TECHNICAL COMMUNICATION P_200297_TC_EN 21/07/2020
Model: Vespa GTS 300 hpe, MP3 300 hpe
Subject: Failure to start with hot engine

https://static.nhtsa.gov/odi/tsbs/2020/MC-10178216-0001.pdf

Dear Dealer / Service Centre,
We hereby inform you that in order to solve any problems with irregular engine operation, or
starting difficulties with engine hot on the Vespa GTS 300 hpe / MP3 300 hpe models,
proceed according to the procedure described below.
Member
Vespa Primavera 50cc
Joined: 07 Jun 2020
Posts: 24
Location: Canada
Tue May 04, 2021 5:40 pm quote
What a coincidence!
Thank you for sharing....wonder if this would apply to a 50cc engine
steelbytes wrote:
here;s a thought

TECHNICAL COMMUNICATION P_200297_TC_EN 21/07/2020
Model: Vespa GTS 300 hpe, MP3 300 hpe
Subject: Failure to start with hot engine

https://static.nhtsa.gov/odi/tsbs/2020/MC-10178216-0001.pdf

Dear Dealer / Service Centre,
We hereby inform you that in order to solve any problems with irregular engine operation, or
starting difficulties with engine hot on the Vespa GTS 300 hpe / MP3 300 hpe models,
proceed according to the procedure described below.
Veni, Vidi, Posti
2020 Honda NC750DCT ABS
Joined: 06 Feb 2006
Posts: 6753
Location: Maple Grove, MN
Tue May 04, 2021 6:33 pm quote
So it's turning but not starting?
You said it's a warm start? (running within the past half hour)
All the 'duh things' checked (e.g. it has gas etc.)

'looking for clues.
Addicted
2016 LXV 150 ie, 1978 Vespa P125, 2019 Piaggio Liberty 150
Joined: 06 Jul 2016
Posts: 630
Location: central Illinois USA
Tue May 04, 2021 6:52 pm quote
No clues about the problem with starting but I will tell you my experience with a from factory defect in a part... on the 2016 LXV150 I bought new from MotoEuropa. Took it down for first service and guy popped out the pet carrier and noticed the rubber intake manifold was Cracked! Less than 600 miles on a scooter they had just sold less than a month before. They ordered a new part and Piaggio wanted the old 1 shipped back to them... seems they had quite a few scooters out with that problem and were going to be dealing with their supplier on that issue..my dealership was great, knew I was 120 miles up river and would ride it down so set up the replacement on a Saturday once the part came on and I was transported to the St. Louis Zoo to play for a while, I have a membership there. And texted when my ride was coming back to collect me.
But the big part is that Piaggio was quick to hop on replacing the defective part and to dealing with the problem up the supply chain. I would have to question a Piaggio dealer that was not wanting to take care of this in what I understand is their usual manor.
Enthusiast
2020 GTS 300 HPE
Joined: 20 Jun 2020
Posts: 66
Location: Ventura, CA
Wed May 05, 2021 10:43 am quote
I too occasionally have hot start issues. Only within a few minutes (after fueling); raised it at first service; software updated. Will show TSB. Always starts just seems embarrassing to get it after a few tries. Not a huge rush issue but eventually want to correct. HPE 2020
Member
Vespa Primavera 50cc
Joined: 07 Jun 2020
Posts: 24
Location: Canada
Wed May 05, 2021 5:02 pm quote
Turning but not starting - it almost feels like its there but doesn't want to start
Running for over 30 min, 3rd or 4th start it does not fire up. Happens often and when you least expect it. Gas checked, battery is good, kill switch off
lomunchi wrote:
So it's turning but not starting?
You said it's a warm start? (running within the past half hour)
All the 'duh things' checked (e.g. it has gas etc.)

'looking for clues.
Member
Vespa Primavera 50cc
Joined: 07 Jun 2020
Posts: 24
Location: Canada
Wed May 05, 2021 5:05 pm quote
Unfortunately my dealer isn't being as cooperative. They changed the drop sensor for another client and it seems to have done the trick. I think dealer/piaggio now know this is widespread and don't want to flip the bill, hence, why we keep getting the run around.
maggiegirl wrote:
No clues about the problem with starting but I will tell you my experience with a from factory defect in a part... on the 2016 LXV150 I bought new from MotoEuropa. Took it down for first service and guy popped out the pet carrier and noticed the rubber intake manifold was Cracked! Less than 600 miles on a scooter they had just sold less than a month before. They ordered a new part and Piaggio wanted the old 1 shipped back to them... seems they had quite a few scooters out with that problem and were going to be dealing with their supplier on that issue..my dealership was great, knew I was 120 miles up river and would ride it down so set up the replacement on a Saturday once the part came on and I was transported to the St. Louis Zoo to play for a while, I have a membership there. And texted when my ride was coming back to collect me.
But the big part is that Piaggio was quick to hop on replacing the defective part and to dealing with the problem up the supply chain. I would have to question a Piaggio dealer that was not wanting to take care of this in what I understand is their usual manor.
Veni, Vidi, Posti
2020 Honda NC750DCT ABS
Joined: 06 Feb 2006
Posts: 6753
Location: Maple Grove, MN
Fri May 07, 2021 3:35 pm quote
vandersar10 wrote:
Turning but not starting - it almost feels like its there but doesn't want to start
Running for over 30 min, 3rd or 4th start it does not fire up. Happens often and when you least expect it. Gas checked, battery is good, kill switch off
Smart folks, chime in. Starter Bendex? I had to replace mine but only after about 25,000 miles. The thing whirred up but wouldn't catch because the centrifugal parts didn't come out right. Easy fix, not too expensive, but maybe not the first thing to go after. Thoughts?
  DoubleGood Vespa T-Shirts  
Post Reply    Forum -> General Discussion
[ Time: 0.0396s ][ Queries: 25 (0.0230s) ][ Debug on ][ Thing Two ]