2021 M8 114 w/53K - Borescope
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Cruiser
Joined: Sep 2018
Posts: 129
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From: Louisville KY
2021 M8 114 w/53K - Borescope
I recently acquired a borescope, and decided to take a look inside my bike's cylinders.
Here's a video of the front cylinder:
Rear cylinder:
This is a 2021 FLHTK with 53,000 miles. Is this normal? I think I see some cylinder scoring and a bunch of carbon. This bike is completely stock. I still have ESP. Should I try to get my dealer to do anything?
Here's a video of the front cylinder:
Rear cylinder:
This is a 2021 FLHTK with 53,000 miles. Is this normal? I think I see some cylinder scoring and a bunch of carbon. This bike is completely stock. I still have ESP. Should I try to get my dealer to do anything?
Last edited by David Crowell; Sep 23, 2024 at 05:04 PM.
Seasoned HDF Member
Joined: Aug 2008
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have fun with that warranty thingy
they will consider it normal wear and tear and/.or maintenance
especially with that many miles. on the ole irons, it was considered normal for 1 qt per 500 miles, the evo is better but i do not remember their turning point.
they will consider it normal wear and tear and/.or maintenance
especially with that many miles. on the ole irons, it was considered normal for 1 qt per 500 miles, the evo is better but i do not remember their turning point.
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From: poway
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Cruiser
Joined: Sep 2018
Posts: 129
Likes: 108
From: Louisville KY
Since I was there, I replaced the plugs, checked the air filter, replaced one plug wire that was rubbing on something, and got it back together.
I'm going to consider venting the breathers through a catch-can. If I do, I'll ride a few thousand more miles, and scope it again.
I'm going to consider venting the breathers through a catch-can. If I do, I'll ride a few thousand more miles, and scope it again.
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Joe Kucinski
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Joined: May 2015
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From: mid Michigan
Looks like detonation on rear cylinder, thats why its cleaner. Not destroyed yet but could use a better tune.
I would ask them to look into it as its totally stock, if it was mine I would be checking injector on that cylinder .
I would ask them to look into it as its totally stock, if it was mine I would be checking injector on that cylinder .
Last edited by xcbullet; Sep 29, 2024 at 03:42 PM.