2024+ Center-Cooled Touring Models 2023.5+ CVO and 2024+ Road Glide/Street Glide/Street Glide Ultra Center-Cooled Gen 2 M8 Touring models

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Old Jun 17, 2025 | 05:09 PM
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Question Nosecone

I noticed that the new M8s have a new cam cover. Any one know why?

Is it primarily for the VVT motors so they know the cam position?
 
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Old Jun 17, 2025 | 08:21 PM
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It is for VVT, but for the rest of the models I guess it would be to just produce one size fits all.
 

Last edited by rideonva; Jun 17, 2025 at 08:22 PM.
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Old Jun 18, 2025 | 05:44 AM
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If you look closely, there is wires that go into the cover for a cam sensor. On the end of the cam now, is like a "reluctor" or locating wheel. that the sensor must use to locate cam position. The interesting thing is, when you remove that wheel from the cam, there is no indexing it to where i was. Effectively, you just bolt back on the cam any which way and it works. The regular CC bikes have these



 
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Old Jun 18, 2025 | 10:12 AM
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Originally Posted by jake24lt
If you look closely, there is wires that go into the cover for a cam sensor. On the end of the cam now, is like a "reluctor" or locating wheel. that the sensor must use to locate cam position. The interesting thing is, when you remove that wheel from the cam, there is no indexing it to where i was. Effectively, you just bolt back on the cam any which way and it works. The regular CC bikes have these


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Thanks for the pic. I dug up the wiring diagram and it appears that all the M8s now use the cam sensor.. I suspect it's mainly because the SE bike with VVT might use the same Core ECM.. It seems to me to be unnecessary tho without VVT.. I'd expect that the position is unimportant as It can be determined at startup. Not sure I'd call the rotor a "reluctor" as the sensor is hall effect.. (got 3 wires)

On the non VVT bike the CMP is still there but the VVT control is not..


 
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Old Jun 18, 2025 | 10:48 AM
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Originally Posted by Max Headflow
Thanks for the pic. I dug up the wiring diagram and it appears that all the M8s now use the cam sensor.. I suspect it's mainly because the SE bike with VVT might use the same Core ECM.. It seems to me to be unnecessary tho without VVT.. I'd expect that the position is unimportant as It can be determined at startup. Not sure I'd call the rotor a "reluctor" as the sensor is hall effect.. (got 3 wires)

On the non VVT bike the CMP is still there but the VVT control is not..

Yea I used that terminology along with "locator wheel" as I didn't know what to call it. I just know theoretically how it works. I guess one could disconnect it and see if the computer throws a code?
 
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