Small Engines (Lawn Mowers, etc.): Husqvarna lawnmower, clutch pedal, carburator

Question
Its a ridind lawn mower model number LTH120
I go to start it and it will start and run until I release the brake/clutch pedal. Thats at all speeds.  I even tried to just throw it into drive but not even a jerk, nothing.  I am not sure what to do,  any help?
Thanks for the time

Answer
 Hello Matt:

 If the Engine is Quiting like the Ignition Switch is being Turned Off, then Jumper the Seat Safety Switch. Disconnect the Switch and Place a Wire Between the 2 Blade Connectors on the Harness Plug. If this Stops the Problem the Switch is Bad. If the Engine is Stalling like it is Starving for Gas, then the Carburator needs to be Cleaned and Rebuilt. You can View a Breakdown of this Mower at this Addy http://www.patspower.com/parts.asp and Click on Parts Look Up. Then Select the OEM(Husqvarna) and Enter the Model Number. Click Search. Choose Your Mower from the 2 Mowers in the Search Results Area and Double Click on it. This will Open a New Window from which you can View the Breakdown of this Mower. Hope this Helps. I am here to help if you Require more Assistance. Let me know what Happens, Please. I enjoy knowing the Outcome. Thanks.

 Good Luck

 Respectfully

 John