Small Engines (Lawn Mowers, etc.): starting problem, starter solenoid, jumper wire

Question
Exmark Model #LZ26KC724. I cannot get the starter/solenoid to engage,I have replaced ignition switch, lever switch, starter/solenoid. There is a terminal block, below the mower and I removed the cover, and sprayed contact cleaner. It engaged briefly,but now it will not engage again. Please help. It is too large to take to the repair shop.,and I don't have a trailer to get it there anyway.

Answer
Hi Donnie,

Go through my no-cranking proceedure below.  Double check the wiring connections.  

Let me know how you make out.
Michael

I would check the starter first.  Jump the positive battery terminal to the starter and it should crank over. If so, skip to step 2.
If not, jump from a battery that you know is good, from a car.  If still nothing, the starter is bad.  If good, then the mower battery is weak.  

Step 2.
If the starter and battery are good, you will need to trace the entire circuit from the starter to the battery.   The solenoid, switches the battery power to the starter, when power from the key switch is sent to the small terminal on the solenoid. To test the solenoid, first make sure that you have power at its large terminal which comes from the battery. Then jump power from that terminal or the battery positive post, to its small terminal. You should hear a click and the other large terminal that feeds the starter should be energized. If not, then the solenoid is bad. If good, then continue tracing the power through the key switch to the battery until you find the break in the power path.   All testing can be done with a 12 volt light or a voltmeter.  Most equipment has safety switches in  the seat and on the blade engagement lever. Check them by temporarily bypassing with a small jumper wire.