– There is a rebuild kit available with all the o rings and seals but I have never used one so far. Just disassembled, cleaned with carb cleaner, and replaced the main jet. (white plastic part – pulls straight out with needle nose pliers). – On the bottom there is a bowl drain.
https://www.amazon.com/Briggs-Stratton-799584-Carburetor/dp/B00CNWXU8C

