Is your oil filter good and clean, laying up can cause oil to solidify
on the filter. If tank and oil are clean try running without a filter, might
want to add a short piece of plastic to keep the oil pipe open, also if
the oil pipe is like jelly it could be sucking closed.
I do not know what drives the oil pump on that saw, but if you take off
the clutch sprocket and look to ensure what ever mechanism used is
there, in place and lined up as it needs to be to drive when the throttle
gets pulled, there should be some sort of spiral gear to drive the pump,
make sure the drive splines are not stripped or worn off.
Also, sometimes people take off the clutch drum and do not line it up
with the slot on it that turns the oiler, this can result in a broken drive arm,
you will see it broken or missing if this has happened.
