I have a 18.5 hp twin Kolhler magnum mod.mv18s. I have voltage at the electronic ignition module, nothing at the coil pack, and no spark at the plugs.
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There is a safety switch under the seat, on the deck lift, also if deck is electrically engaged it will be going through where it engages, and if it mechanically engaged it there will be a switch there too but all switches will be in series with the power going to the coil. You can try a jumper to the coil from the battery and see if the coil will spark as long as the coil connections are clean and the fly wheel is too. Nine times out of ten it is a safety switch. I hope this helps you out.
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