Question about 1988 Jeep Wrangler

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INSTALLED NEW CARB ON AN 88 JEEP HOW DO I ADJUST

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  • Jeep Master
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Adjustment screw is usually capped and non accessible unless you drill it out. If you are lucky and get one without a cap attach a vacuum gauge and tach to the engine and turn the screw out or in 'till you reach the highest steady rpm and vacuum reading, then turn it back about an eighth of a turn. After you have done that, adjust the throttle stop to the correct idle rpm.
The adjustment screw is always located in the base (mounting) plate of the carb.

Posted on Jul 04, 2010

Testimonial: "GOOD ADVICE BUT I HAVE 2 ADJ. SCREWS"

  • Richard Scordino Jul 05, 2010

    No problem with two screws, just adjust one, then the other, then go back to the first. You can repeat that a few times if you really want to refine it but make sure you keep the idle speed (using the throttle stop) at or below normal idle speed.

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Posted on Jan 02, 2017

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Yesterday I replaced the carb on my 89 jeep wrangler. Twice. Both times when I turn the ignition over it doesn't start but instantly floods the carb with gas. Why and how do I fix this?


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Need adjustments for 88 model carter 2 barrel carburator. fits 4.2 jeep


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1 Answer

1988 jeep wrangler carb trouble


Ok... If you have any experience with carbs, you can get a rebuild kit. The most important part of any rebuild is to clean out obstructions in the passageways. Most times this can be done by using carb cleaner and spraying compressed air through them.Most times, just spraying cleaner into carb while installed is a waste of time as debris usually consists mainly of fine rust particles from inside the fuel tank, which will remain in the fuel bowl unless physically removed. If you can't do this, next best option is to search local junkyards for a similar unit. When replacing, cut the fuel line in a convenient place ahead of the carb inlet and put an aftermarket filter in the line, to prevent debris from re-entering and causing further problems. Most carbs have the adjustments blocked off. before using, it is wise to have someone who knows how to remove those plugs, do this for you so you can adjust it after installed.
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