Weber Accelerator pump weak or no flow

[jabb]

I have a 3.0 with 40 IDA's that has sat for a couple of years.
I have drained all the fuel put in fresh fuel. The car does run but is hard to start.

I recently cleaned idle jets main jets and emulsion tubes.

What I noticed is the accelerator injectors 2 out of the 6 have a good flow.
2 have no flow and 2 of them just dribble.
This is when I am pumping the accelerator pump manually.
I am not sure how to clean / clear this issue.

[chris_seven]

Either the jet is blocked or the gallery from the diaphragm is blocked.

You can try removing the pump jet to blow it though. If it is the galleries you will need to remove the plugs and clean them out.