Oh man, I went through 2 primers this year, my backup primer had rotted on the shelf... Sometimes the t fitting will crack too and let in a little air so the lines dry out. Pump it a bunch of times and see what happens. Worse comes to worse the replacement kit is only like $20 and comes with the t fitting and some hose.
Raising sleds from the dead in north central MA.
'70 Ski-Doo Olympique 12/3 - The Yellow Bullet
'71 Arctic Cat Panther 303 - Wankle Panther
'78 Arctic Cat Pantera 5000 - Back from the dead!
'79 Polaris Cobra 340 - Back from the dead!
'95 Ski-Doo Grand Touring SE 670