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

M8 Compensator Upgrade

Thread Tools
 
Search this Thread
 
Old May 22, 2021 | 05:56 AM
  #31  
Cosmic Razorback's Avatar
Cosmic Razorback
Club Member
15 Year Member
Community Builder
Community Influencer
Active Streak: 30 Days
Joined: Aug 2008
Posts: 21,763
Likes: 22,964
From: North Carolina
Riders Club Member
Default

When you guys say your compensator is noisy what do you mean? How do you identify a problem?
 
Reply
Old May 22, 2021 | 07:31 AM
  #32  
NorthWestern's Avatar
NorthWestern
Club Member
10 Year Member
Loved
Community Favorite
Top Answer: 10
Joined: Apr 2016
Posts: 11,590
Likes: 8,418
From: Inland NW
Riders Club Member
Default

Originally Posted by TwiZted Biker
Pictures please of both, I'm real curious.
Will do!
 
Reply
Old May 22, 2021 | 01:28 PM
  #33  
FLTRI17's Avatar
FLTRI17
Stellar HDF Member
15 Year Member
Liked
Loved
Community Favorite
Joined: Sep 2009
Posts: 2,114
Likes: 666
Default

Originally Posted by BigT12

I broke mine with a mild miss shift from 3rd to 4th.
I have absolutely no idea how a missed shift cold harm the stock compensator. Looks like an aftermarket sprocket?
Bob
 
Reply
Old Jun 11, 2021 | 08:30 AM
  #34  
wmprof's Avatar
wmprof
Road Master
10 Year Member
Liked
Loved
Community Favorite
Joined: Mar 2013
Posts: 1,069
Likes: 1,351
From: Kansas
Default

Originally Posted by BigT12

I broke mine with a mild miss shift from 3rd to 4th.
Only 29,250 miles on my 2020 RGL and this happened to me last night getting on the highway. After tow home, pulled primary cover and it was obvious this slider gear was fubar. Under warranty, but I will not be putting stock parts back in it. Would like man o war, but nobody has one. May put solid sprocket on for now.
 
Reply
Old Jun 11, 2021 | 10:43 AM
  #35  
$tonecold's Avatar
$tonecold
Club Member
15 Year Member
Liked
Loved
Community Favorite
Joined: Feb 2011
Posts: 4,709
Likes: 2,219
From: Gilbert, Az.
Riders Club Member
Default

Originally Posted by TwiZted Biker
I'd be impressed if it was 4140 instead of 4130 which is the weaker of the 2 grades by a good margin for that type application, 4130's wear resistance is much lower. I work with both on our production line part holding fixtures for the robots.

With some of what she was saying I have to wonder if she wasn't confused on the specs in general. OEM is not aluminum it's steel, pretty sure cast not forged with the number of breakages I'm hearing about.
The Star Racing compensator is made from EN36.



How does that compare with the 4140 and 4130?
 
Reply
Old Jun 11, 2021 | 11:11 AM
  #36  
wmprof's Avatar
wmprof
Road Master
10 Year Member
Liked
Loved
Community Favorite
Joined: Mar 2013
Posts: 1,069
Likes: 1,351
From: Kansas
Default

Originally Posted by $tonecold
The Star Racing compensator is made from EN36.



How does that compare with the 4140 and 4130?

Obviously the stock part is made of "chinesium" and designed to fail.
 
Reply
Old Jun 16, 2021 | 08:37 PM
  #37  
wmprof's Avatar
wmprof
Road Master
10 Year Member
Liked
Loved
Community Favorite
Joined: Mar 2013
Posts: 1,069
Likes: 1,351
From: Kansas
Default

Originally Posted by wmprof
Obviously the stock part is made of "chinesium" and designed to fail.
Here is what I pulled out tonight. Like BigT12 I was shifting from third to fourth getting on the highway when it fractured. Not really beating on it, only about 4,000 rpm. Knew something was up, had trouble finding neutral a few days before it exploded.

Went to my local dealer and talked to parts counter about updated part number from my build date in February 2020. There was none, 2021 bikes use the exact same part number.

I have a solid sprocket in there now, but will probably replace with Man O War when they are available. Only put 20 miles on test ride and adjuster is still noisy. Maybe it will self adjust soon?


 
Reply
Old Jun 16, 2021 | 08:52 PM
  #38  
NorthWestern's Avatar
NorthWestern
Club Member
10 Year Member
Loved
Community Favorite
Top Answer: 10
Joined: Apr 2016
Posts: 11,590
Likes: 8,418
From: Inland NW
Riders Club Member
Default

Originally Posted by wmprof
Here is what I pulled out tonight. Like BigT12 I was shifting from third to fourth getting on the highway when it fractured. Not really beating on it, only about 4,000 rpm. Knew something was up, had trouble finding neutral a few days before it exploded.

Went to my local dealer and talked to parts counter about updated part number from my build date in February 2020. There was none, 2021 bikes use the exact same part number.

I have a solid sprocket in there now, but will probably replace with Man O War when they are available. Only put 20 miles on test ride and adjuster is still noisy. Maybe it will self adjust soon?

Damn! I have that new Cycle Rama ramp sitting on my bench in the garage. I have been so busy traveling for work that I haven't had time to rip it apart, and we are leaving on a 4000 mile bike trip on Friday
 
Reply
HD Forum Stories

The Best of Harley-Davidson for Lifelong Riders

story-0

7 Times Harley-Davidson Chucked Tradition Out the Window

 Verdad Gallardo
story-1

7 Surprising Harley-Davidson Products that Are Not Motorcycles

 Verdad Gallardo
story-2

8 Best Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-3

10 Worst Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-4

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

 Verdad Gallardo
story-5

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

 Verdad Gallardo
story-6

Harley-Davidson Reveals Super Cool Cafe Racer Concept

 Verdad Gallardo
story-7

Engraved Rebellion: Inside Bundnerbike's Glam Rock II

 Verdad Gallardo
story-8

10 Motorcycles You Should Never Buy

 Joe Kucinski
story-9

10 Things Harley-Davidson Needs to Fix in 2026

 Verdad Gallardo
Old Jun 23, 2021 | 09:03 AM
  #39  
wmprof's Avatar
wmprof
Road Master
10 Year Member
Liked
Loved
Community Favorite
Joined: Mar 2013
Posts: 1,069
Likes: 1,351
From: Kansas
Default

Originally Posted by wmprof
Here is what I pulled out tonight. Like BigT12 I was shifting from third to fourth getting on the highway when it fractured. Not really beating on it, only about 4,000 rpm. Knew something was up, had trouble finding neutral a few days before it exploded.

Went to my local dealer and talked to parts counter about updated part number from my build date in February 2020. There was none, 2021 bikes use the exact same part number.



Update: Man O War motor sprocket arrived yesterday and installed last night. Works as advertised. Clutch basket is noisy, now I have to take back apart and clean clutches for pieces of metal from the disintegration of sprocket. Thought I had gotten every thing cleaned out, but obviously not good enough.

Damn HD, I'm supposed to be riding this thing, not working on it all the time. F*ck!!
 
Reply
Old Jun 23, 2021 | 01:34 PM
  #40  
user 4535654's Avatar
user 4535654
Banned
Joined: Dec 2020
Posts: 27
Likes: 3
Default

I have a Trask basketand Baker adjuster waiting on the Man O War to get here
to do it all.
 
Reply



All times are GMT -5. The time now is 02:24 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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
story-9
10 Things Harley-Davidson Needs to Fix in 2026

Slideshow: Harley-Davidson's challenges aren't abstract; they show up in dropping shipments, shrinking dealer traffic, and strategic decisions that aren't yet translating into growth.

By Verdad Gallardo | 2026-01-13 18:33:17


VIEW MORE