Just this past week, the issue has either gotten worse, or another issue has appeared. Holding the gas for a bit makes it idle okay, but when I try to take off, it will shudder and (it sounds like) miss. If I'm easy on the gas, it'll run decently, but if I give it more than about 1/3 throttle, it will miss and shake and not do much. It will do this for a few minutes, and stop shortly after the engine reaches it's normal operating temperature.
I did some Googling and found the choke control solenoid can go bad, but I was wondering if anyone else might have any other ideas of what could cause this.
I replaced the fuel pump about a month ago, and it had no impact on the cold start issue. My carb also looks spotless from what I can see removing the air cleaner. I ran a bunch of carb cleaner through it today just to try to eliminate that, and it did not change anything.
I did notice when I pull the throttle linkage with the motor shut off, the second barrel did not open. This is normal, as it requires vaccuum, correct?
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1980 4wd LUV, The endless project
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I did check my plugs pretty recently, but I'm going to pull them and check them again once my motor cools down.
I put some Circle K gas in last week around the time it started running rough. I put a half tank of Shell gas in when it got down almost to E. This helped a little, but it was still running pretty rough, so I figured the gas wasn't the issue.
I put a full tank of Shell gas in today, and it completely fixed the issue within a few minutes, so I guess the motor *really* hated whatever was in the Circle K gas.
I had already bought a new fuel filter, plugs and some carb/injector cleaner, so I threw all those in and it's running better than it was before.
Thanks for the help, guys.
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