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!
Manual only shows the two circuit breakers, check the continuity of the breakers with ohmmeter. Next would be to have the AVR, voltage regulator checked!
I see question is still open, did you find problem?
manual above link.