Question for 2024 & later v85 owners

[bad Chad]

My 25 v85 makes a tapping/knocking sound at an 4100 rpm to maybe 4500. It’s barley discernible under very light acceleration, but more noticeable under heavy acceleration.  It’s not the tappets. My theory is it the VVT activating.  It’s done it since brand new, and with 2200 miles it hasn’t changed.  My question to you other owners, does yours do it?

[PeteS]

I haven’t noticed it yet and have only been able to do one ride this year. Might not be until April that the weather will break again.

Pete

[yrunvs]

pre-detonation? Is it a pinging/knocking/rattle under load? Anything like this? Some pre 2025 bikes suffer this. I don't know about the newer ones though. about 22 seconds in.

https://youtu.be/9Rjnvl0osIo

[JHBettsSr]

My 25 v85 makes a tapping/knocking sound at an 4100 rpm to maybe 4500. It’s barley discernible under very light acceleration, but more noticeable under heavy acceleration.  It’s not the tappets. My theory is it the VVT activating.  It’s done it since brand new, and with 2200 miles it hasn’t changed.  My question to you other owners, does yours do it?

I've not heard this on my '25.

[bad Chad]

No, it doesn't sound like pre detonation, it's more of a vibration sound.

[Huzo]

No, it doesn't sound like pre detonation, it's more of a vibration sound.

My Norge did that once and it turned out to be the lower header pipe rattling on the frame. Also those header guards on the ‘85 are notorious for rattling at certain frequencies.
Can you get the bike to do it in neutral ?
Take the muffler off and rattle it, maybe the cat converter is loose as well.
Check the header connection at the engine.
Is the spring on the sidestand or centrestand holding firmly ?
Can you do a video ?

[bad Chad]

Good ideas Huzo.