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Metal in clutch cover yz250f

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Damaged clutch basket or sprockets???

Went to bed after I pulled the cover, just wanted to share what was found to see if it could be anything non clutch related. And if anyone knew what to look for and/or what causes this.

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In my opinion it could be everything. Start with inspecting the basket, arent there any grooves. If I would be you, i would tear the engine completely and inspect the sprockets and everything in it, it's not that hard.

Maybe somebody could give you a better answer!  :thumbsup:

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In my opinion it could be everything. Start with inspecting the basket, arent there any grooves. If I would be you, i would tear the engine completely and inspect the sprockets and everything in it, it's not that hard.

Maybe somebody could give you a better answer! :thumbsup:

ImageUploadedByThumper Talk1448160513.647727.jpg

The chunks are aluminum, magnet won't pick em up

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Could be damaged piston bottom part, something from engine cases???

When I was rebuilding my bike i had similiar pieces everywhere in engine, turned out they were from piston bottom part.

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Could be damaged piston bottom part, something from engine cases???

When I was rebuilding my bike i had similiar pieces everywhere in engine, turned out they were from piston bottom part.

The bottom

Of the piston itself? The skirt?

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Whatever is the problem part you need to inspect the oil pump gear. There's a great chance that it has attempted to chew those pieces of metal which will greatly reduce your oil flow.

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