Unusual Noise at 65mph on My Honda Motorcycle: A Tuning Fork Frequency Mystery

As I ride my Honda motorcycle, I've been noticing an unusual noise that's got me concerned. It's a high-frequency sound, similar to the vibrating of a tuning fork, and it's most pronounced when I'm cruising at 65mph (105kph) in 6th gear. The noise is constant, with vibrations occurring every 1-2 seconds, creating a rhythmic pattern that's hard to ignore.

I've taken my bike to the Honda dealer multiple times, but they couldn't replicate the issue or diagnose the problem. They suggested it might be a harmonic resonance within the motor, but I'm not convinced that's the whole story. The noise started shortly after I purchased the bike and has continued to be present ever since, even after changing the oil at 5000 miles.

Interestingly, when I took my bike in for service at 600 miles, I noticed metal shavings in the oil. I've been doing regular oil changes at 5000-mile intervals, but this experience has made me wonder if there's an issue with the engine's lubrication system. Perhaps the noise is related to excess wear or debris that's being generated by the motor?

I ride my motorcycle daily, covering about 130 miles (210 km) round trip. The noise is most pronounced when I'm cruising at a steady speed in 6th gear, but it does occur occasionally in other gears at similar revs. While it's not unbearable, it's definitely distracting and makes me wonder if there's an underlying issue that needs attention.

Has anyone else experienced this peculiar noise on their Honda motorcycle? If so, I'd love to hear about your experiences and any solutions you might have found. In the meantime, I'll continue to monitor the situation and take my bike in for regular maintenance to ensure everything is running smoothly.

The search for answers continues, and I hope that by sharing my experience, someone might be able to shed some light on this enigmatic issue. If you're a fellow Honda motorcycle owner who's noticed something similar, please feel free to share your story in the comments below!

Tuning fork frequency for 65 mph