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From the driver's side fender, look at the carburetor. Near the bottom and towards the back, you will see two small Phillips-head screws. The upper (SAS1) and lower (SAS2) both control idle speed. LEAVE THE LOWER ONE ALONE!!!

Start the truck and let it warm up to operating temperature. You'll need a tach that is visible from the engine compartment--I got mine at Sears for like $30. Anyway, the factory spec for warm idle is 700 +/- 50 RPM. Use the screwdriver to turn SAS1 (the upper of the two idle screws) until your tach shows revs in that range. That's it, you're done.

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Q: How do you adjust the idle RPM on 87 dodge raider?
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