Thanks Ian.  I hope to get to that tomorrow.  I'm in town visiting my mom and I have limited time to spend working on the tractor.  But I'll get done what I can.  I had to air up a flat front tire and get the tractor started today, success on both counts.  I looked at the tractor today and I really need to de-gunk it.  Oil and dirt crud is all over the pump and hoses.  Makes it hard to see what I'm looking for!  

Do you know if there is a filter in the pump that may be clogged?  If so, I assume on the inlet side?

Buck's550