Safety switches on my zero turn

[Larry]

My Kubota zero turn has been having intermittent trouble with the engine dying when I get off to open a gate or something. Wiggle the brake lever and the safety switch makes contact. Acts good for a while. Last week it wouldn't start but I was able to get going by shorting the posts on the start relay.

Rainy day today, so I decided to tear into it. It has five safety switches, two additional relays, a start switch, the solenoid, fuses, and a couple of diodes in the starting circuit. All located in places impossible for human hands to reach. I'm fairly good at reading electrical schematics but Kubota makes this a challenge also. None of the wires have the color on the schematic. At the end of the day I'm no closer to a fix than at the beginning.

My thoughts have turned really dark and I have a great way to put the Kubota out of its misery.

Boats have a simple kill switch which is normally reliable but easy to diagnose/fix, why not on a mower?

Ok, anybody have recommendations for a new, simple and reliable zero turn?

[Southside]

Jersey cow with a bull calf at her side.  No safety switches to worry about and the calf will be better eating than the Kubota. 

[Magicman]

I do not know which is better, but I absolutely know your Kubota frustration.  I have replaced that brake switch and I can't say here on the FF what I thought.  I did squish some grease into the connection to try to prevent future moisture intrusion.  So far, so good.