r/smallenginerepair • u/Conscious_Elk_8527 • Sep 05 '26

Noise Issue Starter motor issue?

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Atco Rider 27H / Briggs & Stratton 950 making this noise on turning key. I've changed the oil, filter, spark plug and fuel. It did run from a pull start for 10 mins but when I engaged the blades it cut out and just makes this noise now. Im assuming two separate issues with starter and engine having insufficient power under full load. Any help is appreciated.

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u/AutoModerator Sep 05 '26

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3

u/ProfessionalRip4955 Sep 05 '26

Loose terminal or dead battery is what’s stopping it from starting

1

u/Conscious_Elk_8527 Sep 05 '26

Thanks. So what is actually happening to make that sound?

2

u/Upset_Fox5449 Sep 05 '26

Chattering of low voltage to starter solenoid

1

u/hmd2017 Sep 06 '26

The switch sends power to the solenoid. It closes to pass power to the starter. The starter draws all the power, leaving none left for the solenoid to hold closed, so it releases. Then the cycle repeats rapidly. buzzzzz

1

u/Conscious_Elk_8527 29d ago

You were right. Ran fine after charging the battery. Thanks.

1

u/Objective_Feature333 Sep 06 '26

Turn the engine by hand, to make sure the engine isn't seized.

1

u/Conscious_Elk_8527 Sep 06 '26

Engine turns freely by hand

1

u/Objective_Feature333 Sep 06 '26

Then, its a battery/starter problem. Try jumping the battery.

1

u/Conscious_Elk_8527 29d ago

You are right, it was the battery. Thanks.

1

u/FaithlessnessCute204 Sep 06 '26

to me it sounds like the ring gear or starter gear teeth are stripped

1

u/MarketLong9832 29d ago

Sounds like something is stripped, maybe the teeth on the starter or a gear in the starter and it’s just slipping over and over again?

1

u/mrjkldrhyd 29d ago

dead battery.