briggs engines have to be the best ever built. our 20 or so year old lawnmower runs like a champ and we neglect the sh*t out of it. We didnt change the oil for like 2 seasons then it was really low and my dad was cuttin the grass and went up the hill in the back and im sitting in my room and all i hear is CLUNK SCREEEEEEEEEEEEECH for a good 10 seconds. didnt let go of the stop right away because we tie it lol. anyway, we were like oh sh*t its done, new lawnmower. before i changed the oil, i pulled it and it started first try lol. it lost oil in one part of it(thinkin cylinder lol) because it was so low so i put some new oil in and shes been perfect.
sucks back the gas but who cares lol.