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!
Typical safety switch problem. Look at the two arm switches, if either is stuck, it affects the other. The safeties are the seat switch, brake switch ad the two arm switches, any one not completing the run circuit, will kill the engine. Arm switches and seat switch harness are the usual problem areas.
?? Not sure what you wrote?
Brake switch is part of the safety circuit, but nothing else.
Check the wiring to it, and if good, replace the brake switch.
I see question is still open, did you find solution?