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Old 10-18-2010, 05:25 PM   #1
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Need Electrical HELP for riding mower

I'm hoping one of you electrical guys can help me with this one.
The diagram is listed below and very easy to read.

Model: 40563x86A - Lawn Tractor (1998)

I'm unable to start it with the ignition switch.

I can jump it across the solenoid and it runs great.
So, I'm thinking it's either a safety switch or a bad ground. Already put a new solenoid in and a fresh battery. I disconnected the seat switch, I'm assuming that breaking the connection on that one would work, cut the line and taped the end. When the motor is up and running the headlights do not work anymore, I'm sure that's an additional result of my original problem. The fuse at the solenoid is good.

Is there a single safety switch wire I can disconnect to try and isolate the problem? Is it a bad ground or safety switch?
FYI: I think the PTO safety switch diagram is inaccurate

3-steps: Go to site - enter model - click on electrical
Link to my wiring diagram:
You can copy & paste this 40563x86A into the model search field and click electrical system



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Old 10-18-2010, 07:09 PM   #2
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Could not find the diagram. Most mower seat safety switches use a switch that is held closed with weight on the seat. To disable the switch for testing purposes, you have to connect the wires together. (like closing the switch).


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Old 10-19-2010, 06:25 AM   #3
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I had a similiar problem with a Murray mower, changed the solenoid, problem remained. Changed out the ignition switch, that fixed it for a few months, then the switch went out again. Finally put in an ignition switch from an old pickup truck I had, no more problems. The solenoid and switches they use on these are c-rap.
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Old 10-19-2010, 03:24 PM   #4
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Thanks for the help
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