Hi everybody!
I've changed last year my carb (Uno45 fire). The new carb is a weber 32TLF but 37/150, what is the difference between 37/150 and 4/251 (original reference)? Because I've some problems in acceleration at low regime, but it is completly hazardous, the problem disppears any time. Of course, ignition and mixture was checked, all part of ignition are new. (Sorry for my english, I'm writing from France). Thanks you
long life to Uno

Hello and welcome to the forum :wave:

The Weber 32 TLF 4/250, 4/251 and 4/252 were all fitted to the 999cc FIRE engine. The Weber TLF 27/251 was fitted to the 1108cc FIRE engine (essentially the same carburettor as the 4/250-2 but with slightly different jetting).

I can see no reference to the 37/150 carburettor in the Uno Haynes manual. It may have originally been fitted to another model of car? Do you know where this carburettor came from?

Thanks you for your answer. Exactly I don't find 37/150 on my Hayne manual. I bought it on ebay and it was in a weber box. The seller has told it was mounted on panda/uno But his carb has a optional system (right on picture). So what does mean these number 4/252, 4/251,...??

Uno45turbo said:

Thanks you for your answer. Exactly I don't find 37/150 on my Hayne manual. I bought it on ebay and it was in a weber box. The seller has told it was mounted on panda/uno But his carb has a optional system (right on picture). So what does mean these number 4/252, 4/251,...??

Click to expand...

Up please about the meaning of these numbers