Mower spark problem.

Was it running with the old coil?

ETA- reread and saw "lost spark." So obviously not running.

Could it be a seat switch or oil level switch?

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I checked oil and level was fine. I dont recall there being a sensor.

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Not familiar with the mower, what motor is on it?

I own a generator that I couldn't start for anything. After much cussing and hours of trouble shooting, finally unplugged the oil level sensor and it fired right up. Oil was full.


ETA-

I think the parking brake, seat switch, or hydrostatic pedal switch would keep it from cranking at all.

Can you spin it past that point manually?

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I have a JD LA115 riding mower that lost spark. I replaced coil and plug but when I try to start it and the flywheel turns to where the magnet contacts the coil it will stop. I can manually move flywheel past the coil and when I try to start it again it stops there.

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to properly install a new coil, loosen the coil, place a business card in-between the flywheel and coil, then tighten the coil in place.

that gives you the best spark with the correct gap

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I can manually move flywheel past the coil and when I try to start it again it stops there.

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this sounds like the valves need adjusting, its stopping because the valve isnt opening on time

go watch some videos here and you will learn a lot, if you have a question, he has done a video explaining it LINK