Small Engines (Lawn Mowers, etc.): Lawnmower bogging down, briggs and stratton, diaphram

Question
John, we have a 2004 Briggs and Stratton Yard Machine 4.5 HP. We have had no problems with this mower until this spring, when I noticed it was starting to lose power and bog down while cutting. The engine fluctuates between full power and almost dying the duration of the time it is running. I also noted some white puffs of smoke periodically. We cleaned the air filter, but the problem continues. A friend told us that it could be that the caburetor needs cleaning. If this is the case could you please give me some direction on how this is done? Thank you! Karen  

Answer
 Hello Karen

 Your friend is Right; however on the Newer Mowers the Carb is made of Plastic. These Carb have a Tendency to Warp and a new Diaphram and Cleaning won't cure the problem.  The Dead Giveaway to your problem is the Fluctuating between Full Power and Almost Dying.
 If you feel I can give you Directions that you can Understand. I would be happy to walk u thru the process of Cleaning the Carb to ensure it will run proper. If you decide to attempt this you will need a Diaphram Kit.  You will need the Engine Make and Model Numbers to Aquire this.

 Good Luck

 Respectfully

 John