Oil in my air filter at 3000 miles
Seasoned HDF Member
Joined: Dec 2005
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From: poway
It could be poor seating, it could be bad rings (or improperly installed rings), it could be bad cylinders...however, it is unlikely.
While all those things do happen, it is not the majority of the time. What is very likely (happens far more than any of the above) is overfilled oil and/or improper viscosity for the ambient riding temps.
While all those things do happen, it is not the majority of the time. What is very likely (happens far more than any of the above) is overfilled oil and/or improper viscosity for the ambient riding temps.
You are saying that cylinder leakage is not an issue? Then why do some motors need external breathers and some don't?
Most of our tests take multiple days of work for 1 test:
Between planning, making sure all conditions are the same, (all the tests that prove the product idea is a dud, so we ****-can the product and write off all the time on it and doing the testing), editing the video, etc., it all takes time.
Best of luck on your venture!
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DKCustomProducts.com
DKCustomProducts.com
This is what I said:
It could be poor seating, it could be bad rings (or improperly installed rings), it could be bad cylinders...however, it is unlikely.
Seasoned HDF Member
Joined: Dec 2005
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From: poway
Road Warrior
Joined: May 2011
Posts: 1,956
Likes: 438
From: florida
I agree.
Over a dozen personal builds with fresh cylinders and rings every time, I’ve dealt with blowby on a few occasions and none were a result of overheating or overfilling the oil tank. Many other factors (more often) than the DK Customs suggested reasons. Even with seasoned cylinders, proper gaped rings and clearance and proper break in, **** can and will happen. Oversimplified to sell products is an obvious strategy but is either naive or disingenuous to the end consumer who may or may not find these “easy” solutions helpful. If someone has to empty their catch can after every few rides, well that’s not helping squat…..just a band-Aid and a bad one at that.
So not to suggest the DK promotions are invalid. It’s the “UNLIKELY” part that’s not imo very accurate. It’s kinda like the Rocker Lockers….. it’s promoted every time there’s a “ticking” thread, but trust me those inserts ain’t gonna fix all valvetrain noise.
Last edited by ntraindavefl; Mar 28, 2024 at 10:57 AM.
Thread Starter
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Novice
Joined: Mar 2024
Posts: 15
Likes: 8
From: Florida
Soooo, it's pretty much a brand new motorcycle. It had 24 miles on it when I drove it off the lot. It now has 3500 miles on it. It had its scheduled 1000 mile service done by the same dealership I bought it from. If it has "to much oil in it" that is on them. If I have to stick aftermarket parts on a brand new motorcycle just to not have oil coming out of it in places it should never come out of then that is on Harley Davidson. Also, if that is the case I will gladly rid myself of the headache and go back to a well built Japanese motorcycle. I will calmly take it in and tell them the issues and if I don't like their reply I will try a different dealership. If I don't like their reply I will look into getting rid of it. Even complex issues can have simple solutions. Thank you all for the advice....and entertainment!!
Seasoned HDF Member
Joined: Dec 2005
Posts: 19,863
Likes: 7,981
From: poway
Soooo, it's pretty much a brand new motorcycle. It had 24 miles on it when I drove it off the lot. It now has 3500 miles on it. It had its scheduled 1000 mile service done by the same dealership I bought it from. If it has "to much oil in it" that is on them. If I have to stick aftermarket parts on a brand new motorcycle just to not have oil coming out of it in places it should never come out of then that is on Harley Davidson. Also, if that is the case I will gladly rid myself of the headache and go back to a well built Japanese motorcycle. I will calmly take it in and tell them the issues and if I don't like their reply I will try a different dealership. If I don't like their reply I will look into getting rid of it. Even complex issues can have simple solutions. Thank you all for the advice....and entertainment!!
I went back and reread your first post.. There are a couple things to think about.. Installing a KnN filter changes the tuning of the EFI. Without going to a tuner you have the potential of getting a slight hesitation or cough at different times..
A little oil in the AC is to be expected. If it ain't dripping, IMO you are good.. As I understand it HD finally moved the breathers from the heads to the vent passage on the top of the tranny. This is a good thing as it provides a pretty large chamber for oil mist to settle out before feeding it to the intake.
HDs have alway been a little quirky. They are getting less tho.
So your possible issues with hesitation / cough are self inflicted and the oil may not be too bad.. You can do something like what DK custom says to correct the bleed. You may need a tuner to correct the cough..
Thread Starter
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Novice
Joined: Mar 2024
Posts: 15
Likes: 8
From: Florida
I went back and reread your first post.. There are a couple things to think about.. Installing a KnN filter changes the tuning of the EFI. Without going to a tuner you have the potential of getting a slight hesitation or cough at different times..
A little oil in the AC is to be expected. If it ain't dripping, IMO you are good.. As I understand it HD finally moved the breathers from the heads to the vent passage on the top of the tranny. This is a good thing as it provides a pretty large chamber for oil mist to settle out before feeding it to the intake.
HDs have alway been a little quirky. They are getting less tho.
So your possible issues with hesitation / cough are self inflicted and the oil may not be too bad.. You can do something like what DK custom says to correct the bleed. You may need a tuner to correct the cough..
A little oil in the AC is to be expected. If it ain't dripping, IMO you are good.. As I understand it HD finally moved the breathers from the heads to the vent passage on the top of the tranny. This is a good thing as it provides a pretty large chamber for oil mist to settle out before feeding it to the intake.
HDs have alway been a little quirky. They are getting less tho.
So your possible issues with hesitation / cough are self inflicted and the oil may not be too bad.. You can do something like what DK custom says to correct the bleed. You may need a tuner to correct the cough..
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Stellar HDF Member
Joined: Mar 2015
Posts: 2,944
Likes: 995
From: Winnipeg
Usually when they change to an SE air intake (heavy breather, hi flo etc) and exhaust system they will incl the stage one tune upgrade to compensate for increased air flow. More air in = more air out = more fuel needed.
If you only added a filter you really haven’t changed much and even if the K&N increased the air in slightly the ECM can self adjust for that small difference. Same normally with slip ons.
What you described sounds imho (backfiring ,hesitation) like a slightly lean condition and the tech should be able to determine that and correct it accordingly.
If you’re not getting satisfaction from your purchasing dealer (which is unfortunate) seek a second opinion. Don’t give up on this bike, this should be a minor tweak.
If you only added a filter you really haven’t changed much and even if the K&N increased the air in slightly the ECM can self adjust for that small difference. Same normally with slip ons.
What you described sounds imho (backfiring ,hesitation) like a slightly lean condition and the tech should be able to determine that and correct it accordingly.
If you’re not getting satisfaction from your purchasing dealer (which is unfortunate) seek a second opinion. Don’t give up on this bike, this should be a minor tweak.
Last edited by Weeboy1; Mar 29, 2024 at 09:40 AM.
Seasoned HDF Member
Joined: Feb 2016
Posts: 7,987
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From: NC
I run my engine oil in the middle of the stick and that eliminated the mist coming out of my breathers which is routed to the ground.