General Boards > Technical Support
Tires valve cores
David T. Richelderfer:
If your coach's tires use balancing beads, as mine does, then the valve cores need to be "scorpion tail" cores so that the beads, or bead pieces, do not climb up the valve stem to foul the core.
Frank Bergamo:
Before I check air pressure, I apply a shot of air into tire to clear any beads that may interfere with the sealing of the valve core. This has worked well for me. Hope this helps!
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