Here’s how to remove the accelerator pump jet, pump delivery screw and auxiliary venturis on a Weber 32/36 carburetor.
You’re looking here:
That’s the pump delivery screw up on top there. Remove it with a well-fitting flat bladed screwdriver – remember that all these components are really soft metal and if you use an ill-fitting screwdriver you will probably mangle them.
Note the copper washer, part number 41530.012 or 41540.014:
Now that the screw has been removed the accelerator pump jet can be lifted out:
There’s another copper washer 41530.012 or 41540.014 beneath it.
The auxiliary venturis are here:
You can get the carbs clean without removing them, but for the sake of completeness we will show you them removed. There’s a good chance that they are staked in and there’s a few approaches here – one is to have the staked sections drilled out with a small drill bit or similar to be able to remove them. Another is to use the Weber tool 96 10 150 0035 or 9800920000 – which I can’t find a good photo of, but they are available on eBay US, eBay UK and eBay AU. Another suggested method is to open the throttle valves and tap them out with a wooden dowel from the other side – I’d be careful with that as you would not want to deform or break anything.
If you do remove them make note of which end is the open end and which is the closed end… you don’t want to install them the wrong way (if you even can – I presume so, but didn’t try):
Staked sections – this presses into the venturi and stops it from moving, or being removed:
Hole in the carb body leading to the venturi:
Also note the sizing on the side – don’t mix the sides up as they are likely to be different sizes.
As mentioned above, though, removal of these isn’t usually necessary to get a good clean set of carbs – so unless you have to, leave them alone.
Top-down view of a venturi:
Top-down view of the carbs, venturis removed:
That’s it for these steps – now go back to the main 32/36 page for the next.