Took it out with the owner Tuesday, They had relaxed the belt tension (that was the whirring sound - he said they always put them in tight and thought the Honda spec was too loose - nevertheless it was loosened) and taken some of the heat guards off the exhaust. It was all quieter except a buzz around 3000 RPM. That may be a motor mount since they get involved with the timing belt pump change. He said if the timing belt were out one notch it would run poorly.
Anyway, we'll see next week. Haven't tested the new EBH yet.
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