Simplicity Conquest 1693971, mower won’t continue running

I put the mower away for the season (after treating the gas, changing oil and greasing) when another small job came up. The mower started great and ran strong, but when I released the brake it died. Several tries with the same results. I then disconnected the brake relay switch and taped it down. The mower started, continued to run after releasing the brake and I was able to drive the mower from the shed to the shop. When I tried to engage the blades the mower died. I then by-passed the seat relay in the shop to see if it would make a difference, but no difference.
Does anyone have any ideas? Is there a relay to the fuel pump that might be faulty and giving these behaviors?
I am going out of town for the week. Hope someone has a clue.

 

The symptoms indicate to me a faulty seat switch (operator present) I am not familiar with Simplicity, but some circuits are such to prevent simply bypassing the operator present switch.

 

I had already bypassed the seat switch. Anyone? It is a mystery to me.

 

You may not be able to .

 

Agreed.
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