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

M8 problems

Thread Tools
 
Search this Thread
 
Old Jun 19, 2017 | 01:38 PM
  #631  
Yardstick's Avatar
Yardstick
Road Captain
15 Year Member
Photogenic
Joined: Aug 2007
Posts: 701
Likes: 72
From: SA TX
Default Chirping

I get that sound atidle when engine is hot. Cold not so I've noticed
 
Reply
Old Jun 19, 2017 | 04:28 PM
  #632  
Yardstick's Avatar
Yardstick
Road Captain
15 Year Member
Photogenic
Joined: Aug 2007
Posts: 701
Likes: 72
From: SA TX
Default

I suspect it has to do with the EITMS system shutting down the rear cylinder to cool it. Makes the power pulses different and with the new balancer I think it makes the motor mounts squeak a little
 
Reply
Old Jun 19, 2017 | 08:54 PM
  #633  
lzski326's Avatar
lzski326
Cruiser
Joined: Nov 2008
Posts: 196
Likes: 3
From: Mark, Il.
Default

I have the emits disabled
 
Reply
Old Jun 21, 2017 | 12:43 PM
  #634  
bones932's Avatar
bones932
Intermediate
Joined: Oct 2011
Posts: 29
Likes: 0
From: St Marys Ontario Canada
Default

Only problem with mine is a Rear O2 sensor code. Cleared and will wait to see if it was a one off. Still trying to get used to new clutch. Couple stalls and can be tough going from cable to Hydraulic. Keep wanting to pull all the way when all I need to do is just flintch.....that's all it needs
 
Reply
Old Jun 21, 2017 | 01:20 PM
  #635  
King_David's Avatar
King_David
Novice
Joined: Jan 2017
Posts: 23
Likes: 2
From: Delaware
Default Oil Drip Fixed

This is followup on an earlier post I made in mid-April. Compared to some of the other problems reported in this thread, it's almost too trivial to mention.
It took me a while to take the bike to the shop, because I'd rather be riding.

The dealer has replaced both gaskets on the rear rocker box, under warranty. 60 miles later, and no more dripping of oil onto the cooling fins.

I also learned that the MoCo has very specific definitions of a leak, a seep and a weep. I thought that the M8 had a seep, but it was actually a leak. Who knew?

Dave
 
Reply
Old Jun 23, 2017 | 07:16 AM
  #636  
TBennett1962's Avatar
TBennett1962
Intermediate
Joined: Jun 2017
Posts: 31
Likes: 3
From: Piedmont, MO
Default

Mine just died while rolling to a stop several times. Once when I was at a red light. You have to turn the ignition off, put it in neutral, turn the ignition back on, and turn the fuel back on. Then hit the starter. If you don't follow that exact procedure, it will not do anything. If it's in gear, it will not start. It's like the the power is completely off only to the ignition because everything else works. It doesn't throw a code. I've had it to two shops and neither have found the problem yet. I had the dealer install a TTS tuner on it previously. They reset the bike back to factory Wednesday. I rode it home and it seemed OK. Anyone have any ideas? It seemed like it was running out of fuel; however, it wouldn't crank after it died until I went through the aforementioned procedure.
 

Last edited by TBennett1962; Jun 23, 2017 at 07:21 AM.
Reply
Old Jun 23, 2017 | 08:15 AM
  #637  
Max Headflow's Avatar
Max Headflow
Seasoned HDF Member
Joined: Dec 2005
Posts: 19,925
Likes: 8,027
From: poway
Default

Originally Posted by TBennett1962
Mine just died while rolling to a stop several times. Once when I was at a red light. You have to turn the ignition off, put it in neutral, turn the ignition back on, and turn the fuel back on. Then hit the starter. If you don't follow that exact procedure, it will not do anything. If it's in gear, it will not start. It's like the the power is completely off only to the ignition because everything else works. It doesn't throw a code. I've had it to two shops and neither have found the problem yet. I had the dealer install a TTS tuner on it previously. They reset the bike back to factory Wednesday. I rode it home and it seemed OK. Anyone have any ideas? It seemed like it was running out of fuel; however, it wouldn't crank after it died until I went through the aforementioned procedure.

Have them set the idle higher. Your start sequence might be indicating a bad ECM.. It can't throw a code if it gets hung up but I'd fix the no start in gear first. That is likely the clutch switch at the lever. It might be thinking the clutch lever is out all the time.. If that's the case the starter won't spin unless in neutral.
 
Reply
Old Jun 23, 2017 | 08:22 AM
  #638  
TBennett1962's Avatar
TBennett1962
Intermediate
Joined: Jun 2017
Posts: 31
Likes: 3
From: Piedmont, MO
Default

Originally Posted by Max Headflow
Have them set the idle higher. Your start sequence might be indicating a bad ECM.. It can't throw a code if it gets hung up but I'd fix the no start in gear first. That is likely the clutch switch at the lever. It might be thinking the clutch lever is out all the time.. If that's the case the starter won't spin unless in neutral.


Thank you. I will pass this info on to the tech. He's been on the phone with Harley also.
 
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, 2017 | 09:13 AM
  #639  
texaswiz's Avatar
texaswiz
Banned
Joined: Jul 2008
Posts: 1,036
Likes: 67
Default

Originally Posted by TBennett1962
Mine just died while rolling to a stop several times. Once when I was at a red light. You have to turn the ignition off, put it in neutral, turn the ignition back on, and turn the fuel back on. Then hit the starter. If you don't follow that exact procedure, it will not do anything. If it's in gear, it will not start. It's like the the power is completely off only to the ignition because everything else works. It doesn't throw a code. I've had it to two shops and neither have found the problem yet. I had the dealer install a TTS tuner on it previously. They reset the bike back to factory Wednesday. I rode it home and it seemed OK. Anyone have any ideas? It seemed like it was running out of fuel; however, it wouldn't crank after it died until I went through the aforementioned procedure.
You kind of lost me when you said "and turn the fuel back on". How did you turn the fuel off?
 
Reply
Old Jun 23, 2017 | 09:40 AM
  #640  
Drodrigueznyc's Avatar
Drodrigueznyc
Tourer
Joined: Oct 2015
Posts: 476
Likes: 90
From: Westchester, NY
Default

that's weird. the m8 starts in gear and there is no way to turn the fuel on/off.. are we talking about the same bike? sounds like you're riding a 1995 suzuki 250.
 
Reply



All times are GMT -5. The time now is 06:08 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