Weber carb troubleshooting -
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post #1 of 2 Old 05-24-2020, 08:30 PM Thread Starter
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1988 YJ Wrangler 
Join Date: Dec 2018
Posts: 58
Weber carb troubleshooting

I have a 38/38 Weber carb on my 4.2 YJ. The problem is the carb bowl runs dry after sitting for a week.
I have taken it apart and rebuilt it with a redline kit and the thing runs great, it just drys out.

The engine has quite a slope to it due to the transmition drop on the skid plate which makes the carb have a 1.5 inch drop per foot, measured as 5/16 inch drop over the 2.5 inch wide base plate.

As an experiment I am going to make a new base plate with the proper angle to let the carb sit level. Hopefully this will help it.

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post #2 of 2 Old 05-25-2020, 05:59 AM
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1989 YJ Wrangler 
Join Date: Jul 2017
Posts: 111
That is a lot of slope in the driveline, but I do not think it should be causing your issue. I have a 38 as well. I'd check the fuel lines. Is your vapor can connected to the fuel tank and vacuum? That would be the first place I started looking, then it would be the fuel pump itself.

If you want to check leveling the carb, just wedge the wheels to level it out.
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