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    funny noises

    My bike is a 78 750 with 45k miles. Lately i've been noticing two noises coming from the engine while riding around town. The first sounds like bearing noise. It's more pronounced on deceleration. It changes pitch and intensity depending on engine speed, but it's always there in one form or another. The second noise is a gear whine that is only apparent on acceleration when the exhaust noise isn't loud enough to drown everything out. It also changes pitch with engine speed. Does this sound like something catastrophic about to happen or is it something simple that won't require a complete teardown. This is my first GS so i'm not familiar with all the little noises they make. thanks for any help.
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