On Fri, 30 Oct 2009 10:52:47 -0400, Oyabun wrote:
Remove the wheels from the blower and dunk them under water to find
the leaks. Or pour soapy water on the rim with the wheel horizontal
and look for bubbles. If they are leaking from the rims you can push
the tire away from the rim, clean the rim surface with some emery
cloth and refill the tire pushing in from the tread as needed to
reseat the tire bead into the rim.

And if you have a ratchet strap it sometimes helps to do this up tightly
around the tire's perimeter in the middle, as it helps the bead seat a
better as the tire's inflated.

If the snowblower is old and is anything like my ancient lawn tractor,
getting the wheel *off* in the first place might be an art in itself... :-)
(one of my lawn tractor ones leaks over a few weeks, but the wheel's
jammed solid on the axle so I just live with it)