flywheel inner sludge

I've removed the flywheel, only to find lots of probably undesired substance inside it.

Any clues what it is.

Bike had no electric issues.

could be engine oil detergent leftoevers, caught in the centrifuge :thumbsup:

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Looks like it could be metallic, possibly tranny/clutch sludge caught by the rotor magnets...

thats what it looks like to me,i clean mine out every few months. try using a magnetic drain plug,it helps a little :thumbsup:

Thanks, its not metallic, doesnt stick on magnet, maybe fine alu particles.

Wasn't cleaned for more than 2 years.

Magnet drain, thought about it, will make it. :thumbsup:

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