Small Engine Troubleshooting Problems? Ask a Mechanic Now.
Welcome to JUST ANSWER small engines, let me try to help you !! I don't know it all, but maybe together we can get you a satisfactory answer!
# 276 in the parts link for the carburetor is a sling washer. ths washer has to go between the bowl and the nut. This would be leak showing at the bowl bolt.
It can be a thin copper washer, or a plastic washer, but to has to seal gasoline.