my 2001 yz426f oil trouble

I just redid my 2001 yz426f top and bottum, oil pump and bearings,all.

now the oil returnes to the motor and doesnt stay in frame. Runs good and no metal in oil, but cant check oil leval with dipstick. did i miss a check valve or something? help!:cheers:

Edited by Blue-by-you

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