chain brake noise

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  1. G

    Help me diagnose whirring/screeching noise from Stihl 088

    Hi all, I'm trying to diagnose this whirring/screeching sound at idle on my Stihl 088. It happens when the chain brake is both engaged and disengaged. I think it goes away as the RPMs increase, but it's hard to hear over the engine noise. The easiest way to replicate the noise is by pulling...
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