M8 problems
Grand HDF Member
Joined: Mar 2011
Posts: 4,816
Likes: 1,320
From: Good roads, cold beer
so you're stating the sumping issue is only on a few bikes for some reason and not an overall design flaw? Can you tell how you arrived at that conclusion?
if someone doesn't know their bike is being damaged when they're riding it hard, of course they'd be happy?
I had to wade through 60 pages of posts to find the information discussed here.
if someone doesn't know their bike is being damaged when they're riding it hard, of course they'd be happy?
I had to wade through 60 pages of posts to find the information discussed here.
Last edited by F150HD; Apr 23, 2018 at 08:39 PM.
Novice
Joined: Jun 2017
Posts: 22
Likes: 9
From: The Holler
so you're stating the sumping issue is only on a few bikes for some reason and not an overall design flaw? Can you tell how you arrived at that conclusion?
if someone doesn't know their bike is being damaged when they're riding it hard, of course they'd be happy?
I had to wade through 60 pages of posts to find the information discussed here.
if someone doesn't know their bike is being damaged when they're riding it hard, of course they'd be happy?
I had to wade through 60 pages of posts to find the information discussed here.
Why would they not know? Everyone I ride with, checks their fluids on a regular basis, as a general practice, why would you not? It takes 30 seconds.
Im in no way shape or form an HD apologists, believe me, Ive had a love/hate relationship for 40 years. All Im saying is, I wouldnt let the issue stop me from buying and enjoying a great bike. Just keep an eye on things, it aint that hard. If a problem arises, make them fix it.
Maybe Im wrong, I think this was probably some bad parts. If it was a major design flaw, every single M8 would be fu@&$d. Think about it.
Last edited by Animalhd1; Apr 24, 2018 at 06:23 AM.
Seasoned HDF Member
Joined: Dec 2005
Posts: 19,925
Likes: 8,027
From: poway
Why would they not know? Everyone I ride with, checks their fluids on a regular basis, as a general practice, why would you not? It takes 30 seconds.
Im in no way shape or form an HD apologists, believe me, Ive had a love/hate relationship for 40 years. All Im saying is, I wouldnt let the issue stop me from buying and enjoying a great bike. Just keep an eye on things, it aint that hard. If a problem arises, make them fix it.
Maybe Im wrong, I think this was probably some bad parts. If it was a major design flaw, every single M8 would be fu@&$d. Think about it.
As far as issues go whether it be oil xfer or sumping it's more then likely a design weakness than a flaw. My bet is that if you pull apart a bike with either issue you won't find anything out of tolerance. You may find some stuff close to tolerance but it's more then likely simply a combination of things causes the issues.
Seasoned HDF Member
Joined: Jul 2017
Posts: 5,749
Likes: 1,603
From: High Point, NC.
Seasoned HDF Member
Joined: Sep 2009
Posts: 17,148
Likes: 6,171
From: SE Michigan
Because if it was a design flaw it would happen on every bike.
Grand HDF Member
Joined: Mar 2011
Posts: 4,816
Likes: 1,320
From: Good roads, cold beer
this begs the question asked above, what specifically is causing the issue.
Last edited by F150HD; Apr 29, 2018 at 07:41 AM.
Stellar HDF Member
Joined: Jan 2013
Posts: 2,747
Likes: 419
From: Vermont
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Seasoned HDF Member
Joined: Sep 2009
Posts: 17,148
Likes: 6,171
From: SE Michigan
Here is the service bulletin link that a previous poster supplied.
https://www.hdforums.com/forum/attac...n-11_11_17.pdf (see bottom of page -2- through page -3-, later in the bulletin it advises the changeout of the oil pump if sumping is duplicated by dealer)
It tells the dealer to verify the problem exists, sumping, its causes and if it is able to be duplicated, then replace the oil pump. Now with a new oil pump do the same operating conditions result in the same problem? I don't know but maybe someone on the forum who has had their's replaced by this service bulletin can tell us.
https://www.hdforums.com/forum/attac...n-11_11_17.pdf (see bottom of page -2- through page -3-, later in the bulletin it advises the changeout of the oil pump if sumping is duplicated by dealer)
It tells the dealer to verify the problem exists, sumping, its causes and if it is able to be duplicated, then replace the oil pump. Now with a new oil pump do the same operating conditions result in the same problem? I don't know but maybe someone on the forum who has had their's replaced by this service bulletin can tell us.
