She usually purrs very quietly but after a tubing run today the knocking noise began. I haven’t done anything yet but the oil, spark plugs, lower unit, water pump, are all new. This sounds valve related. Same noise in neutral or running. I rev the motor up a bit in the video. Any thoughts are welcome. Thanks in advance!
Here’s the start with a little Rev video:
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Here’s what Yamaha Diagnostics was doing while running:
Here’s the start with a little Rev video:
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