I just bought a used ST 49 and am having problems getting it running. I think the front bearings need replacement because I do have some fuel dripping from the prop shaft, but would that keep me from at least just getting it started on the bench? Where can I find info and pricing on bearings for this engine?

I just found a thread on carb settings for ST engines, so I'm gonna try dialing it in via these instructions:
ST Carb Settings
and I'll try a new plug. I do hear a pop when I turn it over, so I know something is igniting at least once or twice, but it's just not firing up.

Any other suggestions?