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Engine Idle

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426 Engine idles great when cold. After warm up, engine idles high, maybe 2500 - 3000. If I drag engine speed to normal idle w/ load it will normal idle until throttle change then goes back to high idle. Opened pilot needle up 1 turn and symptoms some better. My guess is that pilot jet too small & mixture too lean after warm up. Anyone had experience w/ this?

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Yeah, that's right...I only needed to open the PFS about 1/4 to 1/2 turn more than 1 1/8 turn for colder weather, along with a larger MFJ.

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Yeah, that's right...I only needed to open the PFS about 1/4 to 1/2 turn more than 1 1/8 turn for colder weather, along with a larger MFJ.

Yes, this is correct. Adjust the Air/Fuel Mixture screw and you should be fine. Also check to make sure your throttle cable is not too tight (just in case).

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