Small Engine Troubleshooting Problems? Ask a Mechanic Now.
Welcome to JUST ANSWER small engines, let me try to help you !! I don't know it all, but maybe together we can get you a satisfactory answer!
Do you have battery voltage to the keyswitch from the fuse? If you flip key on and off, do you hear the fuel solenoid clicking at the carburetor? If not, you have no voltage to the keyswitch.
You hear the fuel solenoid click? If so, it has to be safety switches or the harness between them. Do you have a ohm meter to check continuity between the switches>Just because the switches are good, does not mean the harness between them doesn't have a bad connection or a broken wire.