I rebuilt it, because fuel was only flowing through one side. Found one float very sticky so I replaced both needles and seats from the carb kit. Was very optimistic!

Put it on and fuel was flowing out of the venturies

Read that new ones often don’t seat so I pulled the top off, used the needles and seats from a parts carb, same deal

Pulled it off, bent tabs to lower the float level, assembled, Same f’in problem.

Stumped and frustrated !!

 

You usually have to whack the carb with a hammer after you've had it off to unstick things.

 

Was the car running fine before the carb issue and rebuild, or was it purchased with the problem?

 

Fuel pressure? Is it the stock fuel pump or an aftermarket (with hopefully a pressure regulator). Is the return line open? I don't know if that will actually affect the fuel pressure, but without a pressure regulator in the stock system I can imagine it might.

Carl

 

The return line is just a bleed to keep fuel moving through the system. I always block it off.

Carb flooding after it has been off and reinstalled is very common. ​​​​The floats stick down because of the way they are set up in the carb. Turn the pump on, let the bowls fill, then whack it gently with a hammer to reseat the needles.

This will happen even if you don't open the carb, just remove it and reinstall it.

 

[QUOTE= Turn the pump on, let the bowls fill, then whack it gently with a hammer to reseat the needles.[/QUOTE]

My sticky needles were such a horror that I considered fitting a Halloween / seance ‘knocker’ to the carb and running a switch to the dash so I could give the carb a rap if it started flooding when I was driving.

finally fixed it with a fuel pressure regulator.

Original poster… let us know if the car ran fine before the carb issue. I went through hell with my sticky needles, and can talk you through some ideas that may help.

 

Nikki needles and seats are absolutely a pain. I used to assemble everything doused in 2 stroke oil and they still needed a few good whacks every time, haha.