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Just checking with those that have a OneUp pump.
New pump arrived yesterday and I was surprised that it doesn't pressurise when you stick your thumb over the end and pump slowly.
It does pressurise a bit when you increase the pumping rate. I have inflated a tubeless tyre, so it does function, but is<span style="font-size: 0.8rem;"> this normal ?</span>
TIA.
Pretty sure if I stick the bung in, I can't close the pump onto the oring/dirt seal. I think I have to open the bung, close it onto the seal then close the bung. Haven't had to use it in ages though..
Mine is tight as in one pump. Is the CO2 adapter screwed in tight?
If my bung is in you cannot pump so even to close the pump the bung has to be out. As above though if the co2 insert is loose it won't pump properly.
Ditto.... thumb or bung over the outlet and it won't close....
DrP
Cheers all !!