240Z Weber Carbs 45 No Fuel for the mains

[Achille Vassallo]

240Z Weber Carbs 45 Choking

 

We dont have no flow to the main jets.
We only have idle.
You step on the gas and it dies.
Unless you pump it then it works.
Any ideas?

[240260280]

There are two possibilities:

 

1. Poor sealing resulting in loss of vacuum at head of fuel to lift it up into the passage to the aux venturi.

2. Clogged main jets or jet too small.

Edited February 17, 2019 by 240260280

[jonbill]

When you step on the gas, is that going full throttle from low revs? How does it handle progressively opening the throttle from higher revs?

[dutchzcarguy]

11 hours ago, Achille Vassallo said:

We dont have no flow

Let my say first... can't help myself… but emmmm..  SO YOU DO HAVE FLOW!   

I'm just not not kidding..  again… sorry.

To your question, i don't have any experience with webers.. and i'm gonna keep it that way..  ?

[240260280]

Sorry, I assumed too much.  Please review this then get back to us.

 

http://240260280.com/Tech/Carbs/Weber/DCOE Theory Operation and Tuning.html