IF YOU ENCOUNTER A CUSTOMER COMPLAINT CONCERNING WHITE SMOKE FROM THE EXHAUST PIPE AND/OR HIGH OIL CONSUMPTION, IT MAY BE THE RESULT OF THE #1 AND/OR #4 INTAKE VALVE GUIDE INSERTION HOLE IMPROPERLY MACHINED, PERMITTING OIL TO ENTER THE COMBUSTION CHAMBER. TO REMEDY THIS CONDITION, THE CYLINDER HEAD(S) WILL NEED TO BE REPLACED. PLEASE READ THIS BULLETIN IN ITS ENTIRETY BEFORE PROCEEDING.