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Old 19-04-2008, 08:20 PM   #1
Johnser
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Default 30 pict 3 jet sizes, 1200 bug

what jet sizes should I be running with my 1200?

I currently have:

2 jets on the outside, horizontally in line with one another, the furthest forward being perpendicular to the centreline of the car; it is marked:

SOLEX
g55
with an "A" on one of the hex faces.
(main or power jet???)

the second being angled towards the rear. it is marked;
SOLEX
g50
(idle jet???)

there is one jet inside the float chamber on top of the emulsion tube that is marked;
SOLEX
125 Z

the two outer jets look the same (other than the different sizing), not different like #25 and #27 in this pic



I'm having a bit of trouble setting the carb up, its running fine, perhaps a bit rich, averaging ~32 - 34 mpg

anyone know what jets would be sensible to go with?

or where I might find them?
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Old 19-04-2008, 09:28 PM   #2
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On the base rim of the carb will be a modification state number stamped. (eg. VW283/1) If you post that and your engine number I'll check the jet sizes.

Last edited by Moby5153; 06-06-2008 at 09:11 PM.
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Old 20-04-2008, 11:26 AM   #3
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cheers moby that would be great.

modification state (red arrowed) number: VW283-2
(the first stamp looks like a "/" but from your post and the fact it preceeds a "W" I assume its a "V")

part number (on a little tag under the top spring bracket): 111 129 029

engine number: 7938828

I'm sure you've told me before the engine (well the block) is a '64 1200, so obviously this carb is not original to the engine. the engine has been rebuilt at some point but I've not checked to find out if anything else is not original.

I do have a stock 1300 '66, 6v carb I could clean and refurb if you think that would be really advisable. I just thought as the 30 pict 3 was a later design it might be a little more refined. that and it was on the engine in question when I got it
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Old 20-04-2008, 12:12 PM   #4
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That's listed as having the following jet sizes for a 1200:
Main X112.5
A/C 170Z
Idle 55
Aux 50
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Old 20-04-2008, 12:41 PM   #5
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great, thanks for that, I missed the main jet, I see where it's supposed to be in the pic above though.

one more thing, can you confirm which way round the idle and aux jets are?

they are in line horizontally with the one closest to the rear being angles towards the rear, I cant find anything to say which is which,

thanks again!
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Old 18-04-2011, 01:31 PM   #6
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Just found this old thread using Search. Could somebody please confirm whether my jet sizes are correct?

Dec 72 Bug 1200
Engine no. D1013809
Solex PICT-3
Revision no stamped in carb flange VW 320 3
Tag no. 111 129 029 A
Main jet X112.5
Jet aux idle speed fuel g40
Jet auxiliary fuel g55
Jet air correction 170W

Thanks.
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Old 18-04-2011, 04:17 PM   #7
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I can confirm that putting the jets Moby suggested were correct for a 1200 in that carb, unsurprisingly worked well. and is still working well!
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Old 18-04-2011, 05:00 PM   #8
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Quote:
Originally Posted by Johnser View Post
I can confirm that putting the jets Moby suggested were correct for a 1200 in that carb, unsurprisingly worked well. and is still working well!
That's reassuring Johnster thanks.

Just wondering if mine is different with it's different revision number?
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Old 18-04-2011, 11:44 PM   #9
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Tried Googling this but no answer for my particular carb. Anyone giving advice warmly appreciated thanks.
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Old 19-04-2011, 09:34 PM   #10
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Sorry to repeat myself but does this seem right for jet sizes?

Dec 72 Bug 1200
Engine no. D1013809
Solex PICT-3
Revision no stamped in carb flange VW 320 3
Tag no. 111 129 029 A
Main jet X112.5
Jet aux idle speed fuel g40
Jet auxiliary fuel g55
Jet air correction 170W

Thanks
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