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Primary sludge

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Old Mar 11, 2024 | 11:52 AM
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Default Primary sludge

I recently upgraded my clutch and compensator on my 07 Ultra Classic....along with a few other upgrades. I used the Barnett carbon fiber clutch and steels and installed a new basket. I also upgraded to a Screaming Eagle compensator along with a new chain. after about 200 miles I started hearing a lot of chatter at idle, my transmission shifter shaft has accessive play so I figured I would replace the bushing and shaft. When I pulled the outer primary cover there was alot of what I am calling sludge on the bottom of the primary. Is this normal, break in? I didn't warm up the bike before draining the oil and pulling the primary.
 
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Old Mar 11, 2024 | 12:23 PM
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I would check your clutch friction material. That "sludge" may be what's left of the friction disks.
 
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Old Mar 11, 2024 | 12:45 PM
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Originally Posted by Black Ultra
I would check your clutch friction material. That "sludge" may be what's left of the friction disks.
And what kind of lubricant are you using in the primary? Is it compatible with the carbon fiber?

Also check your inner primary bearing to make sure it has not walked into the seal.
 

Last edited by CoolBreeze3646; Mar 11, 2024 at 12:47 PM.
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Old Mar 11, 2024 | 01:21 PM
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Originally Posted by CoolBreeze3646
And what kind of lubricant are you using in the primary? Is it compatible with the carbon fiber?

Also check your inner primary bearing to make sure it has not walked into the seal.
Barnett says you can use any primary fluid for HD primaries. I use the Red Line V-Twin primary fluid. I did replace the inner primary bearing and seal when I did the clutch, I hope I instaled that retaing clip correct, we will see.
 
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