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HSR45 Initial Idle Speed Adjuster Screw Setting?

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Old Nov 5, 2024 | 06:13 PM
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Default HSR45 Initial Idle Speed Adjuster Screw Setting?

Does anyone know what the initial idle screw adjusment should be on the Mikuni HSR 45? Not the air/fuel screw but the idle adjustment screw. I replaced the long screw with the short screw and didn't really pay attention to where it was set originally. I have the manual and tuning guide but there really isn't any talk about it. I wouldn't normally worry much about it but since this will be the first time starting the engine I don't want to have to mess with it much the first start if I can avoid it. I have just set it to where it is about a quarter turn in after touching the slide but that's just a total guess.
 

Last edited by OCSpringer; Nov 5, 2024 at 06:14 PM.
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Old Nov 5, 2024 | 06:29 PM
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Got an HSR 42 on my 105" Dyna Try 1 1/4 to 1 1/2 turns out. That will get ya in the ball park.


 
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