What's the right idle screw setting?

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evildomain

evildomain

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Ok guys,


Got my truck running and driving today:D. Couldn't get a video because


the sun was going down and I had just barely finished making my F/R frame


supports. My question is what is the correct depth setting of the idle screw?


When I got the truck it was way too far in and the truck ran badly. I backed


it off and re-tuned now it runs much better but I would like to know how far in


or out you guys have it. You can see in the pictures how I have it set now


and the gap inside the carb. Wondering if I am close to how it should be? :)
 
right side is low rpm setting and left side is high rpm setting, quoted from another post on here, searched - stock carb settings. "Just turn the needle all the way in till it stops. Just be sure not to over tighten or force the needle more than it wants to go. Then back it out one and one quarter turns for LS needle, and one and one half turns for HS needle."


also see this video


http://www.youtube.com/watch?v=jewDW3G4LKg
 
Ron E said:
right side is low rpm setting and left side is high rpm setting, quoted from another post on here, searched - stock carb settings. "Just turn the needle all the way in till it stops. Just be sure not to over tighten or force the needle more than it wants to go. Then back it out one and one quarter turns for LS needle, and one and one half turns for HS needle."
also see this video


http://www.youtube.com/watch?v=jewDW3G4LKg
Click to expand...
I was asking about the idle screw not the High/Low needles. Thanks for the


info though. :)
 
Mine didn't have the factory setting so I had to set it myself. Just want to see what


the factory setting looks like.
 
I set mine like a 1/8 to a 1/4 from stalling. My theory is the less the clutch is engaged at idle the quicker it will engage for a nice snappy takeoff. I think the higher idles start to pull the shoes out so the clutch is closer to engaged wouthout even pulling the throttle......but thats just my theory.
 
you should take off the linkage of the throtle, and then start your engine. this way you ensure that your throtle servo isnt accelerating yor engine, then if your engine doesn't start turn the idle screw to the right (this will accelerte the engine) once your engine is idling, connect your th linkage and be sure the th servo is not accelerating it. so you can tune it now. remember tune first the hs needle, and then ls needle. when you tune the lsn you can figure if you need turn the idle screw to the right or to the left.
 
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