Carb has been soaking 4 days. Went over it again with carb cleaner spray and compressed air. One piston was seized. No scoring that I could tell just build up around it. Both pistons moved freely after cleaning. Found some kits at work that had parts left over and grabbed a gasket. Put it all back together and is running great so far.
Sounds great when I load it with the brakes and ran good going down the road and pulling up steep hills.
He needs a new sediment bowl though. The center of his is ripped out so its non-functional.