Suzuki,Evinrude 50hp 4 stroke 1999, makes a squeeling noise at higher rpms

[Rickfa]

Suzuki, Evinrude 50hp 4 stroke 1999, starts and runs ok makes a squeal like a bearing seizing, at higher rpms with muffs on, in gear and no prop,
reverse in gear no noise,,
at rev limiter in neutral no noise,
pull back to idle no noise,
oil full, lower unit full, tell tale stream so so, no indication or warning lights, any ideas, thanks