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Repair guides and support for riding lawn tractors sold under the Murray brand name, currently owned by Briggs & Stratton.

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Engine cutting off when brake/clutch pedal released

I have a Murray riding mower model 46503X8.

I depress the clutch brake pedal to start the engine. The engine starts easily and runs when the brake/clutch switch is depressed.

If I release the brake/clutch switch the engine shuts down. I replaced the brake /clutch switch and the pto switch, but the problem did not go away.

I did the following test. With the engine running and the brake /clutch switch depress, I engaged the cutting blades (pto switch) and the engine shuts down.

I have an electrical diagram but need help to solve this problem.

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Further checks revealed that the seat switch was defective. Once I replaced this, I was running and cutting the grass.

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1 Comment:

I had the same problem with the brake pedal but my seat safety switch was disabled before the problem arised.... and everything worked fine ???

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Harry will be eternally grateful.
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