Modern Vespa : Gt200 carb options....125 with bigger jets?

Gt200 carb options....125 with bigger jets?

Iconic558

Sat, 23 Sep 2023 10:51:06 +0000

details

Member

Gt200 2003

Joined: Sat, 23 Sep 2023 10:42:06 +0000
Posts: 19
Location: Norfolk England

Iconic558

Member

Gt200 2003

Joined: Sat, 23 Sep 2023 10:42:06 +0000
Posts: 19
Location: Norfolk England

Sat, 23 Sep 2023 10:51:06 +0000 quote

Hi guys, great site here.

OK I'm looking to buy a Gt200 2003, been looking for a tidy one in Vintage Green for a while and clean ones are tough to find nowadays.

....but she has a leaking accelerator pump....as pump is part of float body it appears the float body bore to pump plunger is worn out...seen this before on other applications and is a no fix fault.

As a 2003 I'm guess it's a Walbro, possibly a Keihin Cvk30, I know they are interchangeable.

Question. I can buy a new Keihin GT125 carb for £130, but the Gt200 is £450. I'm just wondering if the difference is merely jet size or, venturi bore, needle and jet tapers etc.

Any help most welcome as at the moment it a deal breaker.

Cheers guys

Derek 88 Sat, 23 Sep 2023 11:20:27 +0000 details Hooked Vespa gt 125 Joined: Tue, 05 Sep 2023 08:43:50 +0000 Posts: 132 Location: Broxbourne herts
Derek 88 Hooked Vespa gt 125 Joined: Tue, 05 Sep 2023 08:43:50 +0000 Posts: 132 Location: Broxbourne herts	Sat, 23 Sep 2023 11:20:27 +0000 quote Hi I have 03 gt125 and from what I've read the carbs are identical but the 125 has bigger jets.. so just needs jets swapping over..I'm sure someone will be more specific

OP Iconic558 Sat, 23 Sep 2023 12:08:36 +0000 details Member Gt200 2003 Joined: Sat, 23 Sep 2023 10:42:06 +0000 Posts: 19 Location: Norfolk England
OP Iconic558 Member Gt200 2003 Joined: Sat, 23 Sep 2023 10:42:06 +0000 Posts: 19 Location: Norfolk England	Sat, 23 Sep 2023 12:08:36 +0000 quote Many thanks

OP Iconic558 Sat, 23 Sep 2023 13:31:35 +0000 details Member Gt200 2003 Joined: Sat, 23 Sep 2023 10:42:06 +0000 Posts: 19 Location: Norfolk England
OP Iconic558 Member Gt200 2003 Joined: Sat, 23 Sep 2023 10:42:06 +0000 Posts: 19 Location: Norfolk England	Sat, 23 Sep 2023 13:31:35 +0000 quote Information for 125 and 200 carbs.

OP Iconic558 Sat, 23 Sep 2023 13:35:29 +0000 details Member Gt200 2003 Joined: Sat, 23 Sep 2023 10:42:06 +0000 Posts: 19 Location: Norfolk England
OP Iconic558 Member Gt200 2003 Joined: Sat, 23 Sep 2023 10:42:06 +0000 Posts: 19 Location: Norfolk England	Sat, 23 Sep 2023 13:35:29 +0000 quote 125 carb new

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