7Hp Briggs and Stratton updraft carb

[artrip]

I took the updraft carb apart and the main jet threads are a little messed up and can not get the new one back in, What size threader do i need to rethread where the main jet go's into the carb?

 

[Travelover]

I'd look for a used carburetor off Craigslist or local mower shop back lot junk yard.