Small Engines (Lawn Mowers, etc.): murray riding mower, select shop, model numbers

Question
I am trying to change the solenoid and fuel tank on my Murray 12.5hp/40" riding mower. I tore it down and drew a wiring diagram but it has has been missed placed can you help.  By the way I am a female and no one thinks I can do this. Please help if you can.

The model # is 40508x92 also 40508x92D
Serial no 7431405414n358  

Answer
Hello Doris:

No Worries. Go to this Site Addy, http://www.smallenginepartswarehouse.com/parts.asp and Select Shop Online Parts Look Up. Then Select the Model Tab. Then Select the OEM (Murray) and Enter the Model Numbers (40508X92D). Then Double Click on your Model in the Results Area. Then Select the Section of the Mower you Wish to View. In your case it will be the Electrical File. Hope this Helps. I am here if you Require more Assistance. Let me know what Happens, Please. Thanks.

Good Luck

Respectfully

John