Originally Posted by farmrjohn
That correct wrench made the all difference getting the plugs loose. A conventional box end wrench didn't work as it started rounding the corners.
I suspect the special valve adjustment tool is special sized for the TX. I ordered one of the standard valve adjustment sets, and all the sizes were wrong-too small. I wound up using conventional wrenches and holding my mouth just so, but it's difficult to gauge the torque on the lock nut that way (at least for me).
What wrench did you end up using.