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The Husqvarna YTH20K46 is a 24-horsepower lawn tractor or riding lawnmower with a cutting width of 46 inches.

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YTH24K48 Mower runs when jumping solenoid

Mower will not start except when I jump solenoid. Jump black spade terminal on solenoid to negative battery terminal, the engine starts fine using ignition key. Also, lights and hourmeter do not work when running. Lights do work when connected to 12v direct and the light circut at the pull-apart connector is getting 12v when grounding meter to frame. Thought it was ignition switch and bought new one but same problem. The carb solenoid (clicks heard on first turn of key) and blade clutch are working. Seems the start solenoid, lights and hour meter are not getting a return ground. Any suggestions?

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@guerino1 check the safety switches on the seat etc. If those are engaged it will only start by hot wiring, which you are doing.

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Sounds like you're going to need to go in, and physically trace the wires for them. Do continuity checks to make sure a ground hasn't broken inside insulation so that it LOOKS good but isn't actually doing its job. You're gonna have to do this with all the ground wires for those. What if you disconnect the ground from the chassis and hook it straight to (-) on battery? If that makes them work them might but need cleaning up to make good connection.

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Yep...that was the case. You nailed it. Had to unwrap the harness starting from where the ground was bolted to the frame. There were two smaller (14ga??) black wires also connected here. Running it back, I found about 8 inches in where the copper in one of the black wires was severed and held together by the plastic insulation. Might have got caught in the mechanical workings somehow. Soldered it and shrinkwrapped it and were as good as NEW. The other black wire probably ran the solenoid, carb and clutch. Thanks Again

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