ET2 absolutely rips!! But in very hot weather… 🤷‍♂️
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OscarSass
Tue, 19 Sep 2023 07:33:27 +0000
Hooked
Joined: Sat, 21 May 2022 10:04:15 +0000
Posts: 421

 
OscarSass
Hooked
Joined: Sat, 21 May 2022 10:04:15 +0000
Posts: 421
Tue, 19 Sep 2023 07:33:27 +0000 quote
Took the ET2 for an errand this morning. It goes very well - point, shoot, then brake hard. Cracking.

There's a problem - this has only ever happened twice but never got to the bottom it.

On a hot day (yes, 30c is hot for UK), the bike starts… you get 1/2 mile down in the road and it dies. Not getting fuel.

The question is what to investigate? Something peculiar to a 30c day that might cause an issue.

Petcock, fuel and vacuum lines were all new last year.

2T oracles will eventually cease to exist - keen to figure this out before it's too late. 😜

Setup:
Malossi cast iron 68cc kit.
Technigas silent pro (derestricted).
Dellortro 17.5mm clone carb. A22 needle. MJ is somewhere in the 70s (can't remember).
Manual choke.
Lighter clutch (revs quicker, engages later).
5.7g rollers.
fleece
Tue, 19 Sep 2023 09:38:45 +0000
Ossessionato
1991 Vespa T5 Pole Position, 2008 Vespa S 125, 2023 Piaggio MP3 300HPE Sport
Joined: Fri, 06 May 2011 09:26:25 +0000
Posts: 4000
Location: Staffordshire England
 
fleece
Ossessionato
1991 Vespa T5 Pole Position, 2008 Vespa S 125, 2023 Piaggio MP3 300HPE Sport
Joined: Fri, 06 May 2011 09:26:25 +0000
Posts: 4000
Location: Staffordshire England
Tue, 19 Sep 2023 09:38:45 +0000 quote
sorry, can't help with the problem, but hope for your sake that it is a 30c peculiarity..
Quote:
Sunday became the seventh consecutive day of 30 degree weather in the UK with 32.5C recorded in Cambridge. Before that, according to Met Office data, the UK has only had three consecutive days of 30C weather in September on four previous occasions: 1898, 1906, 1911 and 2016
VesperGeezer
Tue, 19 Sep 2023 12:26:52 +0000
Addicted
GTS300, Cosa LX200
Joined: Sat, 02 Jan 2010 20:57:27 +0000
Posts: 554
Location: Sunny South West UK
 
VesperGeezer
Addicted
GTS300, Cosa LX200
Joined: Sat, 02 Jan 2010 20:57:27 +0000
Posts: 554
Location: Sunny South West UK
Tue, 19 Sep 2023 12:26:52 +0000 quote
Is there a breather hole in the fuel cap that's blocked? Probably not, but easy enough to have a look.
If it does it again, unscrew the cap and see if there's an inrush of air into the tank. (Although I don't think the UK will see 30 deg C till next year!)
JakeM
Tue, 19 Sep 2023 12:55:01 +0000
Hooked
Vespa Sprint Sport S 125cc
Joined: Thu, 28 Jan 2021 23:16:48 +0000
Posts: 278
Location: England
 
JakeM
Hooked
Vespa Sprint Sport S 125cc
Joined: Thu, 28 Jan 2021 23:16:48 +0000
Posts: 278
Location: England
Tue, 19 Sep 2023 12:55:01 +0000 quote
Does it immediately restart? For that half a mile, does it ride normally - or does it feel slower?

If it's only happened twice, it might also not be related to temperature - it could just be a coincidence.
Tierney
Tue, 19 Sep 2023 17:34:15 +0000
Veni, Vidi, Posti
Joined: Sat, 22 Oct 2011 16:23:21 +0000
Posts: 6066
Location: Tega Cay, SC
 
Tierney
Veni, Vidi, Posti
Joined: Sat, 22 Oct 2011 16:23:21 +0000
Posts: 6066
Location: Tega Cay, SC
Tue, 19 Sep 2023 17:34:15 +0000 quote
What does the plug look like? Is it fouling out?
  DoubleGood Design  
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