Could be a burnt valve, does it make a popping noise too ?

Ken Shelton

http://www.stores.ebay.com/id=8825968


"Newf" wrote in message
...
I Have a 12Hp B&S engine on my lawn Tractor. The carb was just
refurbished and put back on. The engine is surging and blue flames are
coming out of the exhaust. Any ideas as to how to fix the problem?
Maybe some sort of carb adjustment.

Leo