620 doesn’t want to stay on (when) cold

[620Dat]

I have a 1972 datsun 620 with an L16 engine that doesn’t want to stay on when it’s cold. I have to press the gas pedal for couple of minutes until it warm up that’s when it stays on.  I’ve replaced  the original carburetor with a Weber carburetor with electric choke. also replace the point with a pertronix electronic ignition. If you guys have any ideas what could it be. I would appreciate it. 

[datzenmike]

Choke is likely not adjusted on, or rich enough.

[620Dat]

1 hour ago, datzenmike said:

Choke is likely not adjusted on, or rich enough.

Thank you I haven’t thought about that. For some some reason I thought they came already adjusted. I’ll take a look at it later today.

[datzenmike]

The Z24 in the '83 720, also probably the last Nissan carbureted vehicle, has the choke set at the factory and the 3 screws are replaced by rivets so the owner can't tamper with it. I drilled mine out and used self tapping screws.

[620Dat]

On 11/16/2021 at 8:23 PM, datzenmike said:

The Z24 in the '83 720, also probably the last Nissan carbureted vehicle, has the choke set at the factory and the 3 screws are replaced by rivets so the owner can't tamper with it. I drilled mine out and used self tapping screws.

Cool, is there anything online that shows you how to adjust the carburetor. 

[datzenmike]

I know more about the stock carburetor than the Weber.