Hi Wilbur, The links below are YouTube videos that might get you out of trouble... Also there's videos down the right side of the links that may help as well....... I hope they help......... CHEERS....
How to test a lawn mower Key switch....
How to test lawn mower key switch
How to test a solenoid....
How to test lawn mower solenoid
How small engine governors work....
How Small Engine Governors Work any governor setup
How to test lawn mower electrical safety switches....
How to test lawn mower electrical safety switches
Shows all safety switches disabled....
Disable all lawnmower safety switches