Originally Posted by
dsbrantjr
Presta valves usually need to be "burped" by tapping the pin to release some air; this gets the valve unstuck and ready for the air pressure from the chuck to open it. The center core does not need to be pressed by the chuck in Presta valves.
You are aware that the Presta core needs to be unlocked by rotating it counterclockwise to the stop before burping and attempting to inflate it, then closed afterwards, right?
Yep, I did all that(shop owner who sold me adapter showed me how to operate valve). Problem is - with adapter it doesn't work. My inflation chuck has "pin" inside that should press against schrader, otherwise air won't flow through the chuck. Thats why I can't inflate it right now. Basically my chuck is not compatible with presta+adapter setup.
What would YOU get if you were on my place? Get dedicated bike pump or something to allow me pump air using shop air?