1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Carb differences

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Old 08-01-02, 01:58 PM
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Carb differences

anyone know how to tell the difference in carbs from year to year.

Thanks
Old 08-02-02, 04:40 AM
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No.

~T.J.
Old 08-02-02, 07:00 PM
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Driven a turbo FB lately?

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I know 84-85 carbs have an extra solenoid or 2 on the passenger side, I think..

Wheres Peejay when ya need him, I know he knows..

79 and 80's have the mixture and idle screw vertically just above one another. And 81-85 have them sortta horizontal a few inches apart..
Old 08-03-02, 07:55 AM
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Ok thanks. That narrows it down to 81-85
Old 08-03-02, 08:05 AM
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Sorry man, if I had my digi cam I could take some pics for you...I know that on the 84+ carb, there is a silonoid that looks just like one of the silonoids on the rats nest (the big group of silonoids on top of the engine). It has like a two wire plug on it and a color-coded sticker (maybe, if its still there ). The pre 84 carbs didnt have this silonoid I dont think...Thats about all I can tell you. Like I said, if I had my cam, Id take some pics. I have an 84 and an 83 carb to take pics of to show you...

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Old 08-03-02, 08:31 AM
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If I remember right, the choke horn is smaller (=more restrictive at high RPM...) on the 84/85 carb than the '80. Definitely a lot less emissions on the outside, too. I'll take a pic of the '80 and the '84 and post 'em when I get home 'cuz that's just the kinda guy I am...
Old 08-04-02, 03:28 PM
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Ok I guess it's a pre 84. Thanks for the help
Old 08-04-02, 10:00 PM
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Direct comparison pics to help...

back side of carbs as viewed from the passenger fender...first two are '80 then three of the '84...









Old 08-04-02, 10:03 PM
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From the front side where the fuel lines enter the carb...one of the '80 and last two are the '84...





Old 08-04-02, 10:20 PM
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cool... one of those pics caught me by suprise... I thought one of them looked REALLY fimilar... I looked at it for about 30 seconds.... and I'll be damned.....
















hehehe.... A recent pic of my carb..... And it doesnt look all that bad either... I just need to rebuild it.. I am tryin to find a kit.. gonna call Mazda tomarrow.... then all the little stores around here.....

THANX LATERZ, Andrew
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