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Original Weber Tuning Manual.pdf


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I discovered this .pdf of the 'original' Weber Tuning Manual from Bologna.

Download here : http://www.lainefamily.com/images/WeberTuningManual.pdf

( If the link stops working send me a message and I'll email it )

It contains charts of the original specs for all their carbs.

A listing of all the emulsion tubes and detailed sizes of holes etc.

A bit of carb theory 101 and other info.

I thought this might come in handy for anyone wanting to tune their own Weber.

If you combine this with John Passini's excellent book - 'Weber Carburettors Tuning Tips and Techniques', you'll have a good base of reference to work from and of course experience from many hours fiddling and driving around :)



April '71 2002 LHD - hard won daily driver

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Thanks, that seems to be a prettied up version of what I have that the title page is Master Catalog, Technical Introduction by Edwardo Weber. The figures that I looked at are the same. The one posted has a part three which the one I have doesn't

A radiator shop is a good place to take a leak.


I have no idea what I'm doing but I know I'm really good at it.

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Wow--more details in this than any of the other Weber manuals I have bought or found on the web. I am getting ready to set up my 45DCOE's for a new engine, this should be very helpful. Many thanks for posting!

Fred '74tii & '69GT3


'74tii (Colorado) track car

'69ti (Black/Red/Yellow) rolling resto track car

'73tii (Fjord....RIP)

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Amazing! Details on the specs for all of the jets. After studying the document, I ordered a new set of idle jets last night. I expect I'll finally get rid of the annoying transition lean spot with my DCOE 45s.

Thanks for posting!


'76 2002 "Verona" / '12 Fiat 500 Sport "Latte" / '21 Toyota 4Runner TRD Off Road Prem “The Truck”


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Hi any chance you could post up the link to Dellortos, you can never have too much information.

Thanks for the Weber info , cool.

1970 4 speed 2002 (Daily driver/track car ) 
1974  Hybrid powered twin cam engine, Pig Cheeks , ( now a round tail.) Getting ready to Sell 

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