I have a manual,but don't understand every thing , If you short the top post and the small connection it will start the engine. I had the key part checked and it tested ok. The lights on the dash want come on and you get nothing when you turn the key to first position or any position. Does it hurt any thing to start it with crossing the post?I have the same mower and a service manual if I can be of any help. I do know there is a safety switch on the seat