i have a 12 hp briggs & stratton mower engine. it is blowing oil out of a small hole under the fly wheel. also while i had it running the muffler got cherry red in a very short time. the fellow i got it from put another schroud on it so i do not know the model or type # but it was most likely built in the late 1980's.
any ideas.

Wayne D., August 2010

the motor you have has been changed,from a old style to a new style. it used to have points and has been changed to electronic ing. the briggs dealer has a plug for that hole to prevent the oil from leaking. the muffler is cherry red becouse it has the wrong fuel mixture. change the jets and reset the carb.

william, August 2010