I have a 2004 hopper 725 g2 w/ 3 cyl. gas kubota engine. It lost spark at the plugs and now I'am trying to pinpoint the culprit. tried to bypass the switches with a jumper wire on the seat switch, the parking brake also used two wires but not really sure on the correct way to jump those, the steering handles were done also. In short i still have no spark. battery is fully charged and there is voltage at the coil ( both terminals ) 12 volts or better.checked all fuses and while cranking over was doing a wiggle test on the wiring hoping to get a spark on my tester but nothing. can anyone tell me the proper procedure to test the electrical components on my mower ?