yours is finished
SORRY, THIS IS FOR THE O-RING ONLY. THE IDLE SPEED SCREW IS NOT AVAILABLE NEW, YOU'LL HAVE TO FIND A USED ONE.
We’ve seen people use silicone, teflon tape and even loc-tite to make it stay in place. Don’t do it.
It’s simply the o-ring the on the adjuster screw itself. Yours is old, crunchy, hard and compressed. Replace it to keep the idle speed screw in place and sealed up.
**if this o-ring is the only thing you need (nothing else on the order), please call your order in. There is no way to avoid the “minimum shipping charge” if you order it online.