The motor will only turn over about five or six times. It won't run longer than it takes for the starter roper to recoil.
Today I rebuilt the carb, cleaned it with aerosol solvent cleaner and blew out all the passages with compressed air, there are no blockages in the high or low speed needle areas. I'm positive of that now. I rebuilt the carb according to the online procedure and made sure all the mating surfaces were faced and the gaskets lubricated. I tightened everything in a star pattern, didn't overtighten, etc.
I put it all back together and listened carefully as I squeezed the primer bulb. I could see fuel pumping into the filter bowl and I could hear it filling up the carb bowl.
I pulled the starter and no joy. If anything, it feels harder to pull now. When I covered the air intake with my fingers I could feel no noticeable air flow. What would be causing this?
I'm really discouraged today.