I just took my craftsman mower out of winter storage and noticed blue smoke from muffler when going uphill. It didn't do this last season. I bought it new last spring and used it one season. I changed the oil and filter, but no change. Smokes lots on minor uphill slope and stops when level. 21 HP Briggs. Help
#2
Mudface777
Well blue smoke means you are burning oil. Bad rings and oil getting into combustion chamber could be a possibility. However I would first drain your oil and put fresh oil (I am guessing it is SAE 30) in it. Make sure it is a the proper level. To much may be your issue. If the problem is still there I would take off your carburetor and clean it completely, and lightly oil your gaskets. If it still has an issue it may be a bigger issue. Could you post the model number so I can help further?
As it turns out the warranty had not yet run out. I called sears and they sent out a mechanic. Diagnosed a blown head gasket caused by a warped head. He fixed it in my dooryard! Mechanic reported this is common on the Briggs.
