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Old Sep 22, 2017 | 11:46 PM
  #41  
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Originally Posted by lrcormier
mjwebb, why are you hammering this guy and also being untruthful when you complained on another post about having to keep your RPM's below 3500 to minimize the oil transfer between the transmission and primary?
huh, what? just trying to understand the facts in which the description of the details were vague..OP claims 4 out 4 M8's in his circle of riding friends are having jumping..I stated we're 0 for 6

"being untruthful when you complained on another post about having to keep your RPM's below 3500 to minimize the oil transfer between the transmission and primary?"

i have no idea what you are talking about...I stated from Day 1 that after a period of riding near the red line I noticed the trans fluid level issue..Steve Cole advised me it was an rpm related issue, in which case I stopped riding that way and noticed the trans fluid stopped dropping..don't know where you're coming from..unless you're talking about the experiences I stated with my friends' bikes not having problems, aside from a few minor things..I consider my transfer issue minor because i know how to manage it and it was never anywhere near as severe as so many have reported..and none of my friends have this issue, or sumping or anything major going on...none of us, with well over 60,000 miles has ever been left stranded or had our bikes in the shop being torn down, inspected, claims filed, or, or, or
 

Last edited by mjwebb; Sep 23, 2017 at 12:13 AM.
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Old Sep 22, 2017 | 11:56 PM
  #42  
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Anyone able to explain exactly what "sumping" is and what causes it?
 
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Old Sep 23, 2017 | 12:55 AM
  #43  
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Originally Posted by lrcormier
mjwebb, why are you hammering this guy and also being untruthful when you complained on another post about having to keep your RPM's below 3500 to minimize the oil transfer between the transmission and primary?
Because he paid 25K for a bike that if rode hard over 3,500 RPM transfers transmission oil to the primary. What fool rationalizes riding under 3,500 RPMs as a solution. Ultimate M8 fanboy.
 
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Old Sep 23, 2017 | 03:14 AM
  #44  
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I hope this sumping issue gets resolved soon and I certainly consider this to be a serious issue that should not be downplayed or trivialized. Steve Cole has stated that every M8 he checked had a sumping problem. When someone talks out of both sides of their mouth that just pisses me off. I currently own a 2014 FLHTK but will someday want to trade up and think the M8 is the future of HD but not ready to get my money.
 
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Old Sep 23, 2017 | 07:12 AM
  #45  
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Originally Posted by oleboy
Because he paid 25K for a bike that if rode hard over 3,500 RPM transfers transmission oil to the primary. What fool rationalizes riding under 3,500 RPMs as a solution. Ultimate M8 fanboy.
what fool knowingly, voluntarily and intentionally would abuse his power train to the point of potentially ruining it and their Summer of long trip plans if they had a satisfactory and manageable workaround until a root cause and solution is determined because they are still under warranty. Thankfully they were smart enough to not bastardize their powertrain with after market performance parts while under warranty. Same fool that believes the handful of problems reported on an internet forum out of the ~100,000 sold represent the rule rather than the exception because the facts are after a year you haven't heard a single thing publicized outside of said forum. Ultimate M8 Hater.
 

Last edited by mjwebb; Sep 23, 2017 at 07:30 AM.
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Old Sep 23, 2017 | 07:53 AM
  #46  
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Hmmmm, lots of editing of posts. Interesting for sure. Remember when he was singing the praises of the m8 when it first came out??? A gazillion miles of testing, years in development, so much power, so much better etc. etc....(yes I'm paraphrasing) now riding the greatest motor ever under 3500 rpm's to control the migration issue. The moco probably wishes their were more guinea pigs like him and the problem would be solved.
 
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Old Sep 23, 2017 | 07:54 AM
  #47  
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Originally Posted by sjn25281
Anyone able to explain exactly what "sumping" is and what causes it?
A common symptom is a loss of horsepower. When the oil pump doesn't pull enough oil out of the bottom end the fly-wheel has to spin in the excess oil. It slows things down and makes it sluggish.
 
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Old Sep 23, 2017 | 07:58 AM
  #48  
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Originally Posted by texaswiz
A common symptom is a loss of horsepower. When the oil pump doesn't pull enough oil out of the bottom end the fly-wheel has to spin in the excess oil. It slows things down and makes it sluggish.
And since so much oil is in the crank case, other parts of the engine are starved of oil, which destroys engine parts, burns the remaining oil, etc.
 

Last edited by Keithhu; Sep 23, 2017 at 08:06 AM.
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Old Sep 23, 2017 | 08:07 AM
  #49  
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Originally Posted by confederate
Hmmmm, lots of editing of posts. Interesting for sure. Remember when he was singing the praises of the m8 when it first came out??? A gazillion miles of testing, years in development, so much power, so much better etc. etc....(yes I'm paraphrasing) now riding the greatest motor ever under 3500 rpm's to control the migration issue. The moco probably wishes their were more guinea pigs like him and the problem would be solved.
whatever you say..luckily have peak RW torque of 106 at 3000 rpm's which is in the bread and butter range of huge V Twin Touring bikes..able to crush speed limits easily everywhere..anyway, I'm happy with my bike so that's all that matters to me..YMMV..yeah, I do edit to soften some of the impulse things I want to say at times
 
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Old Sep 23, 2017 | 08:47 AM
  #50  
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Originally Posted by lrcormier
I hope this sumping issue gets resolved soon and I certainly consider this to be a serious issue that should not be downplayed or trivialized. Steve Cole has stated that every M8 he checked had a sumping problem. When someone talks out of both sides of their mouth that just pisses me off. I currently own a 2014 FLHTK but will someday want to trade up and think the M8 is the future of HD but not ready to get my money.
Steve Cole did not state that. He did say that every M8 he has had on the dyno has transfered oil from the transmission to the primary when ran at higher rpm for a period of time, I don't remember exactly how long and that is a big thread so I'm not going to research it. There are many happy M8 owners out there that have flogged their bikes hard and not experienced it, so apparently it's not every bike.
 
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