Reducing Motor Noise

[mrbechet]

First time taking my Standard A top works apart to clean them. Everything has been replaced and relubed.

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What tips, tricks, and adjustments can be made to reduce the noise?

Thanks all!
Mark

[JerryVan]

It sounds like your governor shaft gear is very worn. Getting a new, or better, shaft may help. It can also help a bit to experiment with the position of the governor shaft by moving it laterally with regard to the gear that drives it. Trial & error in finding the "sweet spot" sometimes helps.

[Marco Gilardetti]

Can you at least locate what causes the noise? Jerry suspects the governor - and with good reasons - but those three flat gears with flat teeth on top of the machine look intentionally engineered as noise-makers to my eyes...