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Everything is pointing to the OPC. Unfortunately the shop manual I ordered doesn’t have a wiring schematic. I’ve tested all of the safety switches, the shutoff solenoid is good, I have 0 voltage to the shutoff, I have good continuity between the OPC plug and each individual switch. Gotta be the...

It appears that is the setup with the B7510 as well. The problem has become constant no start so that should help with diagnostics. My manual should be here tomorrow or Thursday that should help considerably. I did find a spot where a mouse decided he wanted my wire insulation for his home so I...

Hi Dave. Thanks! when the tractor is in it’s no start condition I don’t have power to either side of the connector. The solenoid has a good solid ground to the engine. If I apply power to both solenoid terminals with my test leads the tractor will start. I only let it run for a second assuming...

Gee thanks for the help

Hey everyone I’m scratching my head on this one. In other forums people have commented that the fuel shut off solenoid receives power to kill the engine. This B7510 is opposite. I’m having intermittent start problems. Engine turns over every time I turn the key. Sometimes the fuel shutoff...