Carb issues

[primo74620]

I finally got my truck to fire up, but as the engine warms up the truck starts to stall. I need to keep my foot on the accelorator to keep it from turning off. When the engine temp. is cool it idles fine. What may be the problem?????????

[datzenmike]

Idle cut solenoid working? Turn key on/off/om/off without starting and listen for a clicking sound at the back of the carb.

 

Turn the idle speed up so it runs. Turn idle mixture screw in and out to find the smoothest idle. Turn idle speed down. Re-adjust the mixture for best smooth idle. Re-adjust idle down and repeat until you can't make any improvement.

[primo74620]

Idle cut solenoid working? Turn key on/off/om/off without starting and listen for a clicking sound at the back of the carb.

 

Turn the idle speed up so it runs. Turn idle mixture screw in and out to find the smoothest idle. Turn idle speed down. Re-adjust the mixture for best smooth idle. Re-adjust idle down and repeat until you can't make any improvement.

 

I will check the Idle cut solenoid tomorrow. I thought it had something to do with the choke or something that was effected by the rise in temp. Thanks for the help> I am learnign alot from you guys.

[Nicholas7620]

This is a common problem with older Datsun carburetors/engines check out other idling/carburetor problem threads for tons of suggestions. I have my fingers crossed, but I think I finally solved my idling/carburetor problem after two plus years of trying. You might want to check the tightness of your carburetor bolts, look for vacuum lines that are cracked or not rubbery anymore. Definitely check out the other threads on poor idling/carburetors, do a Ratsun search. :D It's not funny but my carburetor nuts would loosen after a while. They are nice and snug now.