HippieD, give this a try.
Turn fuel off.
Drain fuel from bowls, replace drain plugs.
Remove spark plugs.
Hold full throttle, kick thru several times, no ignition.
Release throttle.
Replace sparkplugs, plug boots.
Leave fuel off, attempt starting.
Note if there's any fire attempt at all.
Turn fuel ON for 5 seconds, only, then turn off.
Leave fuel off, attempt starting.
Note if there's any fire attempt at all.
If it fires up, turn fuel ON, note any run differences...