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idle adjustment on a holley

Discussion in 'The Garage' started by bryguy00b, Mar 9, 2003.

  1. bryguy00b

    bryguy00b 3/4 ton status

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    i have a holley carb but i dont know what one...how do i adjust the idle? i want to bring it down cause its to high...is there some screw you mess with on it?
     
  2. Lonnie

    Lonnie 1/2 ton status

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    The idle speed screw is behind the throttle linkage on the Dr. side pointing up towards the windshield. Loosen it slightly & your idle should come down. If it doesn't check to see if the fast idle cam is not holding the idle speed up. This is on the pass side behind the choke housing, but should only work when the choke is closed or partially closed. If this is contacting its stop with the engine at operating temperature, the choke needs adjusted. If this still isn't the cause, repost & I can give you some more ideas.
     
  3. bryguy00b

    bryguy00b 3/4 ton status

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    ok i gotcha...one more question...should the choke come one everytime you start the truck...the light does anyway...and one thing i noticed is when i stop..like at a stop sign..the choke will close and open a bit..liek ill slow down..and it will riv up just a tiny tiny bit liek a couple times...then stop..
     
  4. Lonnie

    Lonnie 1/2 ton status

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    Basically you should see the choke light when you start the truck. The electric choke needs to see power whenever the key is in the on position. The choke should be wide open after approx 10-15 minutes of running. The choke should be as loose as possible & still allow smooth idle when cold. Too tight & it will waste fuel. Also the secondaries will not open when the choke is partially closed.
     
  5. bryguy00b

    bryguy00b 3/4 ton status

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    ok question one...secondarys??
    question two...what do you mean it will waste fual when its tight? you mean when it stays closed a little and pumps more gas in?
     
  6. bryguy00b

    bryguy00b 3/4 ton status

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    well i think it may be my choke more than anthing else..how do i adjust it?
     
  7. bryguy00b

    bryguy00b 3/4 ton status

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  8. 84_Chevy_K10

    84_Chevy_K10 Banned

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    Sure you don't have a vacuum leak?
     
  9. bryguy00b

    bryguy00b 3/4 ton status

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    i have no clue...why what would that cuase it to do?
     

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