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Old 02-12-2014, 06:18 AM   #31
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Thanks. I'll snap a pic.

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Old 02-12-2014, 12:57 PM   #32
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Watched a youtube video, no nutter bypass from what I can tell Cyndi. I'll see what I can find on the o2 Sensor.

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Old 02-13-2014, 09:36 PM   #33
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Watched a youtube video, no nutter bypass from what I can tell Cyndi. I'll see what I can find on the o2 Sensor.
Then I'll tale a closer look at my O2 sensor this weekend and snap some pics for you so you can see where the connecting wire should be or should come from.
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Old 02-15-2014, 12:58 AM   #34
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If this is your first YJ with a Carter then that's the issue. When I bought mine it also had a Carter and it used to do this all the time. There is really no fix but to rebuild carb but I decided to upgrade to Weber. Wow! What a difference. It's been 10 years with no issues. Although, I think I might have just messed up by putting premium gas. If you can use a shop you can do this upgrade yourself, just make sure you follow directions and remember were all the hoses, etc. were connected before. I took pictures during the process.
When me and my dad first got our 88 we had the same problem, if your wanting to stay carbed then go get and edelbrock carb, youll have to spend money but should fix your problems
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Old 02-15-2014, 07:04 AM   #35
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Edelbroch, I'll look into that. Ordered a carb rebuild kit in the mean time,$15 on eBay
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Old 02-15-2014, 03:47 PM   #36
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BACKGROUND: Newbie. First time jeep owner, purchased this week. '90 YJ. 6 cycl. 5 spd. Carb. 85k on the odo.

SYMPTOMS: Stalls at idle. Dies at stop signs. Can be driven if you stay on the gas pedal. Has a loud "banshee" squeal when the RPMS pick up, but I think this may be unrelated as the belts were recently changed.

ADDITIONAL FACTORS: Upset wife. Limited mechanical ability/knowledge. No garage; have to use auto-hobby shop, about $3.50 an hour (not a problem).

After doing some research I found the following article.
Fix idle and stalling problems on a jeep cj-7 or wrangler yj

I successfully completed this and was feeling good and, given my lack of experience, was feeling pretty victorious. Unfortunately it did not fix the problem, the jeep still won't idle, and I left the shop feeling defeated. It seemed like the engine was running a little better, but it still stalls.

I should add that the jeep is dirty. As in, greasy. The choke plate was pure black. The air filter was pure black. The "tray" that holds the air filter had oil/gunk in the bottom of it. I wiped the engine and found that its not actually black its silver.

I'm not sure where to go from here. Can anyone give me some ideas on how to troubleshoot this?

I've heard it could be a vacuum leak--how do I trouble shoot that?

For now, here's my plan. I know it probably wont help, but I'm going to change the oil tomorrow, throw on a quality filter. (how many quarts should I pick up?). Get a new air filter, and put some sea foam in the tank. I'd like to think that sea foam would take care of this, but I'm skeptical.

Also, a "flexy" hose that goes from the exhaust to the air cleaner fell off when I took the lid of the air cleaner off. It's rusted, and brittle, I could barely get it back on so I'll be picking up one of those with some new screw clamps.

Thank you in advance for the advice and sorry for the overload. I'm a man's man but I'm diving into some new territory here (mechanical work).

Mike

P.S. I have read zen and the art of motorcycle maintenance.


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Old 02-15-2014, 03:56 PM   #37
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Typical issue with carter carbs-took all that vacuum crap off mine & went with a weber. No tuning needed-it was a bolt and go job in about an hour. I know some states require the emission crap, but not mine-jeep friendly I guess. I had oil related issues on mine like you originally described. There was an old recall with the California emissions to limit the oil from being sucked in the carb from the rear vent tube-parts not available, but fixed mine with a separate reservoir kit bought off eBay that can be drained when needed. Actually works out great as my jeep isn't a daily driver and it collects condensation crap before it goes back through the system.
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Old 02-15-2014, 07:12 PM   #38
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I got it for so cheap I can't bring it back. Plus my fault there on the ignorance.

Anyone know where I can find instructions for a rebuild?
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Old 02-15-2014, 08:22 PM   #39
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Then I'll take a closer look at my O2 sensor this weekend and snap some pics for you so you can see where the connecting wire should be or should come from.
The wire that the O2 sensor connects to comes down from the top of the block, maybe from under the air filter housing, it doesn't come up from beneath. In this picture, you can see the white top of the O2 sensor on the right in the background.

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Old 02-15-2014, 08:37 PM   #40
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I got it for so cheap I can't bring it back. Plus my fault there on the ignorance. Anyone know where I can find instructions for a rebuild?
Here is a link for the manual: http://u225.torque.net/cars/SL6/docs/BBD_Manuals.pdf
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Old 02-16-2014, 02:24 AM   #41
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I have a 1990 FSM. PM me if you would like a copy of it.
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Old 02-17-2014, 05:34 PM   #42
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Thanks for the pic Cyndi.

In other, somewhat related news. I took 'er to a muffler shop to have a new one welded on, and found out the cat was removed by the previous owner.

Also thank you for the manual!
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Old 02-17-2014, 06:01 PM   #43
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Thanks for the pic Cyndi. In other, somewhat related news. I took 'er to a muffler shop to have a new one welded on, and found out the cat was removed by the previous owner. Also thank you for the manual!
Well, that's why the O2 sensor was disconnected. I guess if you didn't have the cat replaced, you don't need to worry about it.

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