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!
The main drive solenoid is dropping out, it can be just a bad solenoid, or it can be the foot switch, dropping the voltage to the solenoid. With it being intermittent, solenoid is the part that gives most problems.
Yes, in my opinion , I would replace the solenoid, it is a wear item and needs to be replaced occasionally anyway, and it is cheaper than replacing the foot control!
I see question is still open, did you see my response?