Wed Sep 21, 2022 6:09 am

Molto Verboso
2018 LIBERTY 150S, 2013 Kymco LIKE200iLX
Joined: 26 Jul 2013
Posts: 1789
Location: Ohio
 
Molto Verboso
2018 LIBERTY 150S, 2013 Kymco LIKE200iLX
Joined: 26 Jul 2013
Posts: 1789
Location: Ohio
Wed Sep 21, 2022 6:09 am linkquote


@$15 on eBay.
Nicely painted metal gas cap/with gasket - toss that horrible plastic stock cap ...which can sometimes require two hands - and likes to cross-thread!

I first posted about this cap a few yrs ago - many have followed - with smiles.

No idea why the American Vespa parts dealers aren't offering these. But they will sell you another black plastic cap for nearly twice this price.
O.S.
Wed Sep 21, 2022 7:12 am

Addicted
2019 Piaggio Liberty 150
Joined: 20 Feb 2019
Posts: 961
Location: Norfolk, VA
 
Addicted
2019 Piaggio Liberty 150
Joined: 20 Feb 2019
Posts: 961
Location: Norfolk, VA
Wed Sep 21, 2022 7:12 am linkquote
Can confirm that this one little, mostly unseen accessory is the best investment for a Liberty owner.
Wed Sep 21, 2022 8:52 am

Hooked
2020 primavera 150
Joined: 08 Aug 2020
Posts: 419
Location: Lorton virginia
 
Hooked
2020 primavera 150
Joined: 08 Aug 2020
Posts: 419
Location: Lorton virginia
Wed Sep 21, 2022 8:52 am linkquote
I replaced mine on a lx that I use to have and worked fine so when I bought my son a 2020 primavera 150 fuel injected I purchased another one from Scooterwest.and had problems with keeping the engine running.After talking to the dealer he said to put the original cap back on and I have not had any issues since.It's something about the venting I believe he said.
Wed Sep 21, 2022 9:04 am

Ossessionato
2010 ThunderFly 190, 2007 250 GTS, 1980 P200E
Joined: 29 Apr 2011
Posts: 3137
Location: Springboro, OH
 
Ossessionato
2010 ThunderFly 190, 2007 250 GTS, 1980 P200E
Joined: 29 Apr 2011
Posts: 3137
Location: Springboro, OH
Wed Sep 21, 2022 9:04 am linkquote
I got a similar one for my GTS recently. Has a nice positive feel in the hand.
Wed Sep 21, 2022 9:10 am

Moderaptor
The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300
Joined: 26 Aug 2007
Posts: 41432
Location: Pleasant Hill, CA
 
Moderaptor
The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300
Joined: 26 Aug 2007
Posts: 41432
Location: Pleasant Hill, CA
Wed Sep 21, 2022 9:10 am linkquote
Harry brenner wrote:
I replaced mine on a lx that I use to have and worked fine so when I bought my son a 2020 primavera 150 fuel injected I purchased another one from Scooterwest.and had problems with keeping the engine running.After talking to the dealer he said to put the original cap back on and I have not had any issues since.It's something about the venting I believe he said.
The cap should not be anything to do with the venting. It should be well sealed. The tank vent is a separate bit of structure. Your new cap should work just fine - if there's a venting problem, it's somewhere else, fix it.
Wed Sep 21, 2022 9:54 am

Hooked
2020 primavera 150
Joined: 08 Aug 2020
Posts: 419
Location: Lorton virginia
 
Hooked
2020 primavera 150
Joined: 08 Aug 2020
Posts: 419
Location: Lorton virginia
Wed Sep 21, 2022 9:54 am linkquote
I guess I have another problem as I tried the aluminum cap again and the engine cut off in about 3 minutes. I put the original one back on to get home.When I took the metal cap off a lot of hissing.I will have to check out further.Thanks
Wed Sep 21, 2022 10:09 am

Ossessionato
1979 P150X, 1983 P200E, 1988 T5, 1995 PX200E, 2011 Yamaha Fazer 600 S2
Joined: 02 Aug 2015
Posts: 3213
Location: Veria, Greece
 
Ossessionato
1979 P150X, 1983 P200E, 1988 T5, 1995 PX200E, 2011 Yamaha Fazer 600 S2
Joined: 02 Aug 2015
Posts: 3213
Location: Veria, Greece
Wed Sep 21, 2022 10:09 am linkquote
@jimc: Although everything you said is correct, all the caps that came on Piaggio scooters in our market, for some reason had a small hole on them. And of course, because there was no "one way valve" on them, they would always leak a bit if tank was filled to the brim. The hole disappeared around 2008...
Wed Sep 21, 2022 10:13 am

Moderaptor
The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300
Joined: 26 Aug 2007
Posts: 41432
Location: Pleasant Hill, CA
 
Moderaptor
The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300
Joined: 26 Aug 2007
Posts: 41432
Location: Pleasant Hill, CA
Wed Sep 21, 2022 10:13 am linkquote
Harry brenner wrote:
I guess I have another problem as I tried the aluminum cap again and the engine cut off in about 3 minutes. I put the original one back on to get home.When I took the metal cap off a lot of hissing.I will have to check out further.Thanks
I bet your Piaggio cap had lost its O-ring seal. That's actually an MOT failure event in the UK,

Yes, you need to investigate.
Wed Sep 21, 2022 10:17 am

Moderaptor
The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300
Joined: 26 Aug 2007
Posts: 41432
Location: Pleasant Hill, CA
 
Moderaptor
The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300
Joined: 26 Aug 2007
Posts: 41432
Location: Pleasant Hill, CA
Wed Sep 21, 2022 10:17 am linkquote
SaFiS wrote:
@jimc: Although everything you said is correct, all the caps that came on Piaggio scooters in our market, for some reason had a small hole on them. And of course, because there was no "one way valve" on them, they would always leak a bit if tank was filled to the brim. The hole disappeared around 2008...
If I remember correctly, that's when all the EU vehicle 'road-worthiness' checks began to align a bit more than they had before. The eventual vent outlet had to be from the neck of the tank to below the level of the bottom of the tank so the heavier fuel fumes would remain inside as much as possible, and in the event of a tip sideways wouldn't leak.
Wed Sep 21, 2022 10:33 am

Hooked
2020 primavera 150
Joined: 08 Aug 2020
Posts: 419
Location: Lorton virginia
 
Hooked
2020 primavera 150
Joined: 08 Aug 2020
Posts: 419
Location: Lorton virginia
Wed Sep 21, 2022 10:33 am linkquote
The tank is full.The only difference between the 2 caps is the original has a flat black gasket on it and the aluminum one has a round o ring type seal.I think that is the problem.
Wed Sep 21, 2022 11:22 am

Addicted
2019 Piaggio Liberty 150
Joined: 20 Feb 2019
Posts: 961
Location: Norfolk, VA
 
Addicted
2019 Piaggio Liberty 150
Joined: 20 Feb 2019
Posts: 961
Location: Norfolk, VA
Wed Sep 21, 2022 11:22 am linkquote
Swap out the gasket. Remove the original gasket out of the plastic cap and, after removing the o-ring one, try it in the aluminum cap. My ebay red aluminum cap came with a flat rubber gasket. I eventually replaced it with a Piaggio flat one after the red caps original gasket started breaking apart. Wear and tear item.
Wed Sep 21, 2022 11:38 am

Hooked
2020 primavera 150
Joined: 08 Aug 2020
Posts: 419
Location: Lorton virginia
 
Hooked
2020 primavera 150
Joined: 08 Aug 2020
Posts: 419
Location: Lorton virginia
Wed Sep 21, 2022 11:38 am linkquote
I took the flat seal off of the old LX one and put on the a aluminum cap and it seems to work fine .The engine has not cut off and no hissing noise.Problem solved.Thanks
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