Modern Vespa : European Vespa Groaning When Off

European Vespa Groaning When Off

angrywasptamer

UTC

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Hooked

Vespa GTS Super Sport 300 Yellow (2018)

Joined: UTC
Posts: 113
Location: Lancing, UK

angrywasptamer

Hooked

Vespa GTS Super Sport 300 Yellow (2018)

Joined: UTC
Posts: 113
Location: Lancing, UK

UTC quote

I noticed this when I got home today, the strange squeaking door noise every couple of seconds which goes away when the fuel cap is unscrewed:

which sounds a lot like this:
Weird moaning sound coming from my Vespa?!

described here:
FAQ: Why does my GTS groan/moan/moo or fart when off?

As specifically not affecting the European GTS. What's going on? I've never noticed this before. Could it be because fuel is running low on a hot day when I've been on the motorway or something? Or they added the evap to EU models?

tom jones

UTC

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Hooked

Vespa GTS 150 3v SUPER. Vespa V100 x 1. Lambretta Li150 x 1. Px 125 x 2. Px 200 x 1 (red bull special) T5 Classic x 1. Vespa Cosa x 2.CF moto 650mt

Joined: UTC
Posts: 392
Location: Perth Australia

tom jones

Hooked

Vespa GTS 150 3v SUPER. Vespa V100 x 1. Lambretta Li150 x 1. Px 125 x 2. Px 200 x 1 (red bull special) T5 Classic x 1. Vespa Cosa x 2.CF moto 650mt

Joined: UTC
Posts: 392
Location: Perth Australia

UTC quote

Re: European Vespa Groaning When Off

angrywasptamer wrote:

I noticed this when I got home today, the strange squeaking door noise every couple of seconds which goes away when the fuel cap is unscrewed:

Mine moans too. Mostly on hot days. Nothing to worry about. As you say it alleviates when you remove the petrol cap. It's just the fuel gases reacting to the heat. Not sure if this is a trait of the gts. My other bikes don't make this noise.

fledermaus UTC details Veni, Vidi, Posti 2007 LX150 2015 GTS (on the bench) 2017 BV 350 Joined: UTC Posts: 12209 Location: Fond du Lac, Wisconsin
fledermaus Veni, Vidi, Posti 2007 LX150 2015 GTS (on the bench) 2017 BV 350 Joined: UTC Posts: 12209 Location: Fond du Lac, Wisconsin	UTC quote I think it's complaining that you came home too soon.

Dooglas UTC details Veni, Vidi, Posti GTS 300ABS, Buddy 125, Buddy Kick 125 Joined: UTC Posts: 13453 Location: Oregon City, OR
Dooglas Veni, Vidi, Posti GTS 300ABS, Buddy 125, Buddy Kick 125 Joined: UTC Posts: 13453 Location: Oregon City, OR	UTC quote angrywasptamer wrote: What's going on? I've never noticed this before. Could it be because fuel is running low on a hot day when I've been on the motorway or something? Or they added the evap to EU models? I believe it has been posted here that the Euro 5 Vespas have an evap control system.

OP angrywasptamer UTC details Hooked Vespa GTS Super Sport 300 Yellow (2018) Joined: UTC Posts: 113 Location: Lancing, UK
OP angrywasptamer Hooked Vespa GTS Super Sport 300 Yellow (2018) Joined: UTC Posts: 113 Location: Lancing, UK	UTC quote Dooglas wrote: I believe it has been posted here that the Euro 5 Vespas have an evap control system. But this is a 2018 which I think is Euro 4 not 5? fledermaus may be right, it's not happy at staying home so much!

Dooglas

UTC

details

Veni, Vidi, Posti

GTS 300ABS, Buddy 125, Buddy Kick 125

Joined: UTC
Posts: 13453
Location: Oregon City, OR

Dooglas

Veni, Vidi, Posti

GTS 300ABS, Buddy 125, Buddy Kick 125

Joined: UTC
Posts: 13453
Location: Oregon City, OR

UTC quote

angrywasptamer wrote:

Dooglas wrote:

I believe it has been posted here that the Euro 5 Vespas have an evap control system.

But this is a 2018 which I think is Euro 4 not 5?

I'm getting out of my depth here, but this article states that the Euro 4 standard for fuel evaporation and the Euro 5 standard are the same. Perhaps Euro 4 Vespas have an evap control system as well. Surely some of the European members here with a strong tech background know the answer to that question.

https://www.automotive-iq.com/exhaust/articles/evaporative-emission-regulations-and-evap-systems

Harbinger UTC details Veni, Vidi, Posti 2023 Arancia Impulsivo Vespa GTS300 HPE , 2022 BMW R1250GSA 40th Anniversary, 2019 Ural Gear Up Joined: UTC Posts: 8508 Location: Toronto
Harbinger Veni, Vidi, Posti 2023 Arancia Impulsivo Vespa GTS300 HPE , 2022 BMW R1250GSA 40th Anniversary, 2019 Ural Gear Up Joined: UTC Posts: 8508 Location: Toronto	UTC quote angrywasptamer wrote: Dooglas wrote: I believe it has been posted here that the Euro 5 Vespas have an evap control system. But this is a 2018 which I think is Euro 4 not 5? fledermaus may be right, it's not happy at staying home so much! Give it a few news articles to read and it will understand why it needs to stay home. The scooter is Italian after all so it has to understand...

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