Harley Davidson Forums

Milwaukee Eight (M8) 2017 and up M8 Air and Liquid Cooled discussion
Sponsored by:
Sponsored by:

M8 Clutch slips

Thread Tools
 
Search this Thread
 
Old Aug 10, 2017 | 12:05 PM
Share
  #1  
smokingjoe's Avatar
smokingjoe
Thread Starter
|
Road Captain
Joined: Sep 2016
Posts: 715
Likes: 114
From: Texas Hill Country
Default M8 Clutch slips
I took the primary cover off and found some real fine substance looks like grit.
Clutch starting slipping this morning.
I stopped and got some syn3 and dumped the mobil 1 I am gonna fill it up with syn3 and ride, hope it stops slipping, but the fine grit looking substance bothers me ?
Anyone have any ideas/thoughts besides not using MOBIL 1 In the primary!!!!!!
joe
 
Reply
0
Old Aug 10, 2017 | 12:22 PM
Share
  #2  
BB59's Avatar
BB59
Tourer
Joined: Nov 2012
Posts: 421
Likes: 71
From: Hayward Ca
Default
Make sure the clutch is adjusted properly both internally and at the clutch cable The Mobil 1 isn't be the issue although I would be running a primary fluid as opposed to motor oil in my Primary.
 
Reply
0
Old Aug 10, 2017 | 12:23 PM
Share
  #3  
smokingjoe's Avatar
smokingjoe
Thread Starter
|
Road Captain
Joined: Sep 2016
Posts: 715
Likes: 114
From: Texas Hill Country
Default
Well it never slipped until I put mobil 1 in it ? And it just a few minutes Im taking it out with syn3 in it.
Joe
 
Reply
0
Old Aug 10, 2017 | 12:32 PM
Share
  #4  
HDV-GLIDE's Avatar
HDV-GLIDE
Elite HDF Member
Joined: Jul 2008
Posts: 4,741
Likes: 45
From: Indian Land, SC
Default
Originally Posted by BB59
Make sure the clutch is adjusted properly both internally and at the clutch cable The Mobil 1 isn't be the issue although I would be running a primary fluid as opposed to motor oil in my Primary.
I recommend the HD Formula + for the primary. NO MOTOR OIL.....
 
Reply
0
Old Aug 10, 2017 | 12:37 PM
Share
  #5  
BB59's Avatar
BB59
Tourer
Joined: Nov 2012
Posts: 421
Likes: 71
From: Hayward Ca
Default
It only takes a few minutes to check the internal clutch adjustment. People have been running motor oil in their primaries for years with no issues. Not that I would but they have come that way for years.
 
Reply
0
Old Aug 10, 2017 | 12:38 PM
Share
  #6  
Northern Glide's Avatar
Northern Glide
Seasoned HDF Member
10 Year Member
Liked
Loved
Community Favorite
Joined: Oct 2012
Posts: 24,287
Likes: 4,027
From: Western MN
Default
Hyd clutch. Little or no adjustment.
Some grit is to be expected unless you have an overwhelming amount of grit in your primary.
Motor oil in the primary of certain type or specification could cause your clutch to slip.
 
Reply
0
Old Aug 10, 2017 | 12:40 PM
Share
  #7  
dyna rider's Avatar
dyna rider
Club Member
Veteran: Army
Joined: Dec 2007
Posts: 4,192
Likes: 168
From: Knoxville, Tn
Default M8
Originally Posted by BB59
Make sure the clutch is adjusted properly both internally and at the clutch cable The Mobil 1 isn't be the issue although I would be running a primary fluid as opposed to motor oil in my Primary.
M8s don't have an adjustable clutch as it is hydraulic and there is no adjustment.
I personally wouldn't use motor oil in the primary at all. Either use formula plus or primary chain case oil. Ams oil makes it as well as Spectro.
 
Reply
0

Trending Topics

Old Aug 10, 2017 | 12:45 PM
Share
  #8  
RandyL's Avatar
RandyL
Road Captain
Joined: Sep 2013
Posts: 672
Likes: 99
From: Michigan
Default
I also recommend the formula+
 
Reply
0
HD Forum Stories

The Best of Harley-Davidson for Lifelong Riders

story-0

6 Weirdest Harley-Davidsons Ever Sold to the Public

 Verdad Gallardo
story-1

7 Times Harley-Davidson Chucked Tradition Out the Window

 Verdad Gallardo
story-2

7 Surprising Harley-Davidson Products that Are Not Motorcycles

 Verdad Gallardo
story-3

8 Best Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-4

10 Worst Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-5

Killer Custom's Jail Break Is The Breakout That Refused to Blend In

 Verdad Gallardo
story-6

Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

 Verdad Gallardo
story-7

Harley-Davidson Reveals Super Cool Cafe Racer Concept

 Verdad Gallardo
story-8

Engraved Rebellion: Inside Bundnerbike's Glam Rock II

 Verdad Gallardo
story-9

10 Motorcycles You Should Never Buy

 Joe Kucinski
Old Aug 10, 2017 | 12:56 PM
Share
  #9  
Brewmany's Avatar
Brewmany
Elite HDF Member
Joined: Mar 2014
Posts: 4,214
Likes: 661
From: Prior Lake, MN
Default
Didn't HD back off a couple years ago now, on it's recommendation to use Syn3 in the primary? Or did they revert back?
 
Reply
0
Old Aug 10, 2017 | 01:00 PM
Share
  #10  
ORradtech's Avatar
ORradtech
Outstanding HDF Member
Joined: May 2015
Posts: 2,172
Likes: 377
From: Georgia
Default
M8 clutch slip = warranty trip to dealer.
By dumping the grit you may have lost a valuable tool in troubleshooting the problem...
 
Reply
0



Advanced Search
Reply Closed Thread Share
Forum Jump

All times are GMT -5. The time now is 02:55 AM.

story-0
6 Weirdest Harley-Davidsons Ever Sold to the Public

Slideshow: From military-inspired singles to scooters and three-wheel utility vehicles, these Harleys took the company far outside its comfort zone.

By Verdad Gallardo | 2026-06-02 18:34:10


VIEW MORE
story-1
7 Times Harley-Davidson Chucked Tradition Out the Window

Slideshow: Harley-Davidson built its reputation on nostalgia, but every so often, the company took a hard left turn into the future.

By Verdad Gallardo | 2026-05-20 11:18:19


VIEW MORE
story-2
7 Surprising Harley-Davidson Products that Are Not Motorcycles

Slideshow: The bar-and-shield logo shows up on far more than motorcycles, some of the company's most unexpected products have nothing to do with riding.

By Verdad Gallardo | 2026-04-29 16:50:35


VIEW MORE
story-3
8 Best Harley-Davidson Motorcycles Ever

Slideshow: Not every Harley gets it right, but these are the ones that genuinely earned their reputation.

By Pouria Savadkouei | 2026-04-15 14:23:21


VIEW MORE
story-4
10 Worst Harley-Davidson Motorcycles Ever

Slideshow: From the troubled AMF years to modern misfires, these bikes earned reputations for reliability issues, questionable engineering, or disappointing performance.

By Pouria Savadkouei | 2026-04-01 20:01:09


VIEW MORE
story-5
Killer Custom's Jail Break Is The Breakout That Refused to Blend In

Slideshow: Killer Custom's "Jail Breaker" build focuses more on stance and visual aggression than mechanical overhaul.

By Verdad Gallardo | 2026-03-18 19:20:32


VIEW MORE
story-6
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

Slideshow: The Swiss custom shop has taken a Harley Softail and stretched it into something so long and low that it looks closer to a rolling sculpture than a conventional motorcycle.

By Verdad Gallardo | 2026-03-07 16:15:30


VIEW MORE
story-7
Harley-Davidson Reveals Super Cool Cafe Racer Concept

Slideshow: Harley-Davidson's new RMCR concept revives the café racer formula with modern hardware-and it may be exactly the reset the company needs.

By Verdad Gallardo | 2026-03-04 12:23:37


VIEW MORE
story-8
Engraved Rebellion: Inside Bundnerbike's Glam Rock II

Slideshow: A standard cruiser becomes an intricate metal canvas in the hands of a Swiss custom house known for pushing Harley-Davidson platforms far beyond their factory brief.

By Verdad Gallardo | 2026-02-24 18:19:44


VIEW MORE
story-9
10 Motorcycles You Should Never Buy

Slideshow: There is no shortage of great motorcycles to buy, but we would avoid these ten.

By Joe Kucinski | 2026-02-19 14:50:51


VIEW MORE