69 running rough; stalls at 20 mph?! (1 Viewer)

[Skreddy]

I was going by their website- they call it the idle adjustment screw.

2F 3F Carburetor Idle Adjustment Screw for Land Cruiser FJ40 FJ55 FJ60 FJ62 70 Series FJ80

Carburetor idle adjustment screw with spring for Toyota Cruiser FJ40, FJ55, FJ60, and non-US FJ62, 70 Series, FJ80 with 2F or 3F engine. May not be exactly the same length as the one on your original carb, but serves the same function. All such screws have been discontinued by Toyota. OEM...

www.cityracerllc.com

Yes that’s to adjust the idle air/fuel mixture. Turning it should produce some change but if timing is off, idle too low or high, etc., it may not do anything. The screw to adjust the engine idle (opens the carb butterfly) is on the firewall side of the carb, facing up but angled slightly toward the brake master cylinder.

 

[Green Bean]

The idle adjustment screw is hard to see because it is obscured by all of the linkage. Moreover, once you find it, it can be rather challenging to get a screwdriver on it. If you have a timing light with a tach, it might be useful to have it hooked up, so that you can monitor. I believe you are shooting for about 600 rpm on a warm engine.

 

[CBFJ]

Yes that’s to adjust the idle air/fuel mixture. Turning it should produce some change but if timing is off, idle too low or high, etc., it may not do anything. The screw to adjust the engine idle (opens the carb butterfly) is on the firewall side of the carb, facing up but angled slightly toward the brake master cylinder.

Well that got er! Running like a top again. Thanks MUD- you led this horse to water and made me drink! Every day is a learning experience.

 

[CBFJ]

Glad you are figuring yours out. My fuel pump decided to die (I think) right when I got it running again

good luck man! I'll probably be back next week with something new that I can't do

 

[CBFJ]

Update: didn’t fix sh*t. Back to square one.

 

[CBFJ]

SOLUTION: cracked float in the city racer carb, dumping fuel.