Carburetor issue

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DaveFromWorcester
Posts: 4
Joined: Mon Jul 16, 2018 12:46 pm
Your car is a: 1979 Fiat Spider 2000

Carburetor issue

Post by DaveFromWorcester »

New '79 2000 owner and experiencing a stalling issue at every stop sign, it just won't idle. From what I've read, this year has the worst carb and intake. Also read that the 1800 cc intake is a nice replacement. What carb would be the easiest, best fit to replace the original. Any advice would be helpful. Thanks!
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nelsonj
Posts: 394
Joined: Thu Oct 14, 2010 5:37 pm
Your car is a: 1972 Spider 124

Re: Carburetor issue

Post by nelsonj »

I'm not sure about the 79, but my 78 had an electronic idle control valve. It went bad and it would stall if I took my foot off the gas.
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Simi Valley, California
Spider 1800
Romans 10:9
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dinghyguy
Patron 2018
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Posts: 457
Joined: Thu Jul 20, 2017 7:41 pm
Your car is a: 1981 spider
Location: Vancouver, Canada

Re: Carburetor issue

Post by dinghyguy »

Hi and welcome

My 79 has a single plane now and a 32adf
carb . The p.o. Did it and I think a 34 adf would have been a bit more powerful .But if that is the issue get a kia.... So if I were starting where you are i would get the 34'ad'adf

Dinghyguy
1981 Red Spider "Redbob"
1972 blue Volvo 1800ES "Bob"
1998 Red Ford Ranger
silvadw
Posts: 83
Joined: Wed Apr 02, 2014 6:26 am
Your car is a: 1979 Spider CS2 weber 34adf
Location: Victoria Australia

Re: Carburetor issue

Post by silvadw »

When working properly the 79 carb etc is ok-ish.
I swapped mine out for an 1800 intake and Weber 34ADF. once jetted/tuned properly, goes GREAT. I have stock air filter and 4-2-1 exhaust
various KTMs and V8's
RR Sport
'79 Spider 2000
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geospider
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Posts: 585
Joined: Mon Mar 20, 2017 9:07 pm
Your car is a: 1979 Spider 2000
Location: concord, ca

Re: Carburetor issue

Post by geospider »

Agreed on the carb and manifold replacement.
The 28/32 on the '79 is long known to be the dog of all webers on these cars.
I had a new out the box one from the PO, used it to get smogged here in Cali.
PO also gave me the 1800 single plane manifold and a 32/36.
since I had to do a lot of engine work; swapped them out. get them dialed in and they are great.
the 34's and 38's that some have done will give you a bit more since primaries are bigger and sinc'd vs progressive. but the 32/36 is pretty easy to manage: as with all of these: float adjustment and jetting.

Image

this gives you a good idea of the difference between the manifolds; crazy.

AR has a kit for all of this as well as options for each piece. check e bay for the carbs: a bunch out there

Geo
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Nanonevol
Patron 2018
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Posts: 828
Joined: Thu Nov 13, 2014 9:17 am
Your car is a: 1977 Fiat 124 Spider
Location: Medway, Massachusetts

Re: Carburetor issue

Post by Nanonevol »

Beware the Chinese copies that are sold. I know the price is tempting and some have good luck with them but I'd first look around for the genuine Weber.
1977 Fiat Spider
1985 Jaguar XJ6
1967 Triumph Bonneville (hard-tail chopper)
1966 BSA Lightning
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geospider
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Posts: 585
Joined: Mon Mar 20, 2017 9:07 pm
Your car is a: 1979 Spider 2000
Location: concord, ca

Re: Carburetor issue

Post by geospider »

+1 on genuine Weber
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