I just inherited a Honda harmony riding lawn mower. Bought a new battery for it and it started right up. After I found the fuel shut off course.

It will start up and idle all day but for some reason, once I engage anything (remove the parking “lock”, engage the blade, shift into gear from neutral) it stalls. Is there another kill switch or something that I need to locate, can someone help me out hear.

Thanks

Hi,
Sounds like a seat switch problem; the machine does not "know" the seat is occupied and the safety system takes over.
Peace,
Clarke