Got a question concerning an 85 CJ7 choke. I think that it is an electric choke as I dont have a manual control...
When it is cold, I need to pop the hood and and open the flap to the carb manually to crank the jeep. I have to this sometimes once the engine is warm to start as well! How can I diagnose this as its rather irritating to have to pop the hood to crank!?!?
Choke butterfly should be closed to start a cold engine and open to start or run a warm engine. If it is closed when it shouldn't be, it will cause a rich condition making it hard to run or start the engine.
The picture below (not mine) is how the choke should be wired for your 258. If the po stripped the wiring out you can just run a switched hot to the choke and will be fine. If you do have a wire going to the choke the first thing I would check is to see if it has power to it.
Under A Sun Thats See It All Before...
ok... apparently it is not an electric choke as i dont have anything that looks like that. What i have looks almost like a thermostat with a "piston" running in the middle. this piston is connected to the carb and controls the flap. Even with the engine cold, the flap is all the way closed not allowing any air. Could the "thermostat" be my problem?
I thought you could buy a replacement electric choke but I've never looked for one. Another option is to install a manual choke. Just a push/pull knob with a cable routed into the dash area. I like manual chokes, almost too simple to fail.