Chances are Cindy you probably have a rim leak. Ride-On Doesn't help rim leaks too much. Your best bet is to make sure they clean the rim good before mounting the tire.
I had a slow leak in my sidecar tire, kept an eye on it for weeks before finally taking the tire back to my tire guy. ure enough they hadn't cleaned the rim good so the tire never sealed.
You'd even have a leaky tire if it doesn't seat well on the rim. they took the tire off, cleaned up the rim good (good test is to wipe the rim with a cloth and if it doesn't snag on anything you have a smooth even surface)
It's also possible to still have a rim leak after replacing the valve stem because most places probably won't take the tire off the rim to replace the stem. You can break the bead move the tire out of the way (C-Clamp works good for this) , replace the valve stem, then reseat the bead
Patriot Guard Rider
2000 VN750 Sere (Serendipity)
1990 GL1500 (Ole Blue)
1986 VN750 EVie (project bike, heavy custom)
VROC # 11628 / 25000-H
ARVROC # 12 Coordinator and Crowd Control
OKVROC # 18 (H)
TNVROC # 45 (H)