I am in need of some help ASAP on my Exmark Lazer Z. I was using the mower today, done about 4 yards. Pulled up to another yard and get out to start the mower and the mower will not turn over. Just clicks. I take the mower home and get out the jumper box and try starting it, which it does crank and start but will not stay running so than I was thinking it was the solenoid wire possibly breaking since it did once before and I soldered it back together. I tore it all apart to find nothing wrong. Finally I broke down and bought a new solenoid but it is only a 3 terminal instead of 4. So I get that hooked up with the one wire being grounded instead of being hooked to the 4th terminal. I go to start the mower and of course nothing again. Just clicks. I checked all the fuses. Even thought the PTO maybe was stuck but couldnt see how since I drove it onto trailer with blades off. So I get the jumper box back out and hook it up to the solenoid and the mower will crank over and will actually start but will only stay running when the seat is pressed down. As soon as I let go of the seat the mower dies and will not start again with the key. When I let go of the seat the brake is on. So basically the mower runs when I jump it off the solenoid, but only stays running when the seat is pressed down even if the brake is on. The blades will turn on and everything works just like normal until I get up and than it dies even with the brake on and yes the PTO is disengaged. Give me some advice here. I really need this running.