I have a 28086s snapper mower. It ran fine after I cleaned the carb (i bought it not running), but the needle seat in the float needed to be replaced. I took it to a snapper mechanic who did the repair. Now the mower will not start. I sprayed starting fluid in it, but it barely pops. I have the needle turned out 1.5 turns and the idle set at 3/4 turns. It seemed to be flooding out, so I pulled the float bowl off. Float works properly. I noticed the jet in the bottom where the mixture screw seats and the head of the jet is partially stripped where a flathead screwdriver would fit. I now cant back it out. Can this be causing my trouble? I did check spark and its got spark. So no safety switch issues. Compression is good. Anything im missing?