Greetings,
I don't know much about carbs, did alot of reading and searching but I couldn't find any real applicable answers to the signs of when I would need a rebuild. I have a 45mm Weber DCOE 2-barrel sidedraft.

I'm thinking I need a rebuild because I'm getting these symptoms:

-popping noises (like popcorn popping) when I take my foot off of the throttle from high rpms (4-6000 rpms)

- a bit of a hesitation at low rpms (1-2000 rpms) when I accelerate (could be because of the physics of a 2 barrel?)

- with the choke engaged, I have to pump the gas 7-10 times, crank 2 or 3 times and the car starts

-extremely poor gas mileage, I'm talking about (if I'm lucky) getting barely 300 kms on a full tank of gas and I drive rather stingy daily

I'm looking to rebuild my weber carburetor, I have ZERO experience in rebuilding carbs but I do have the patience and did some tinkering with cars in the past. Anyone with experience recommend that I do this on my own? Thanks in advance for your opinions.

 

Theres alot of books on the weber. I'd suggest you get one. Worth it if your keeping the car/carb for any length of time.

 

Found 3 different books.
http://www.webercarbsdirect.com/technical_manuals

I can't go wrong with the tech manual directly from weber right?

 

Did this always happen? It sounds to me like it just needs to be properly tuned. Though you won't see much power that low in the RPMs from any rotary- especially with a two barrel, the hesitation you mention seems like an accelerator pump adjustment is needed.
Thumb through this for info.

 

Do Webers have ap's?

 

Piston type, I believe.

 

Tried tuning the car last night doing the 'best lean idle' procedure.
Its strange, after I think I got the right idle speed inside the garage, I go outside for a quick test drive and notice that my idle speed is higher than what I originally thought I set it at. Setted my idle speed outside and now the car runs pretty good. Solved my popping when I let off the throttle theres still there a bit of hesitation.

I'm thinking of changing the venturi, main fuel jet, air jet, idle jet sizes. Anyone know of a cool 45mm dcoe setup that worked for them?