In answer to some of your questions:
- *fuel level is OK, at least half full tank
*engine stop lever is in the run position
*fuel lines in engine compartment appear OK, no leaks
*removed tank cap no significant pressure/suction
*did blow some compressed air down the suction line and fuel ran back out the line after the air hose was removed
Still does not crank. I will try using a jar of fuel at the prefilter as a test tomorrow. Thanks to all for your help. I will report back later.