DOC HARLEY: LET’S PUT AN END TO OIL IN YOUR AIR CLEANER 

Take a look at 2024 models…..Doc

@@LowCountryHarleyDavidsonI have one ☝️

They have to do this to be compliant with pollution regulations.

I have thought about it but what would I do with all my time at work? Make videos for free and let the wife buy groceries 🤷‍♂️….Doc

Nuclear option tbh. Catch cans can be big and obtrusive and hard to find a place to mount this is how I plan on doing it, w/ a simple washable breather filter, when I do mine

That's some solid advice. It really doesn't get that cold where I live very often, and I wouldn't have put much thought into that situation. I'll take it into consideration. Thanks.

Thanks for sharing...Doc

Stealership? We are a Harley-Davidson Dealership, Thank you very much...Doc

I believe ethanol burns clean. It has other problems but, it does burn nicely.

Some Great ideas. Go back to school and become a HD engineer...Doc

An interesting development for Harleys. The bigger the motor the better the application. Thanks ~ Doc

Jeff I had not thought of a follow up. There have been a lot of good comments here with pictures on how some are making there Breather. The only follow up might be how I choose a too small of a catch can and blew my dip stick out🙄 Thanks ~ Doc

The Net is a wonderful thing when it comes to ideas....Doc

Yes, I believe it will fit....Doc

What?…..Doc

@@LowCountryHarleyDavidson the rear exhaust is wrapped almost completely around the nose cone.

No, NO , NO....Doc

I was thinking the same thing when I seen this video: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-Bq6LSZp0qMI.html Doesn't sound like a good idea.

Cover is still vented to the atmosphere. The very small amount of oil would return to the transmission through the huge cavity.

EPA requires it. They cannot vent to atmosphere.

Ahhhhhhaha! Perfect best one ive heard in a while “hd designs clothes not bikes” sooooo true and they wonder why people dont love them any more!!!!!

My 2014 CVO Ultra Limited with 20k miles has not had one problem since new. Thought about trading for M8 until I test road. Not impressed enough to trade plus hearing of lots of problems with the motors. Think I’ll keep my Twin Cam.

@@Kman1960 Mine is paid for. Last thing I want is a bike payment. Plus I think Harley had pretty poor customer service. Good thing about mine no warranty so I'll put what ever I want on it and zero Screaming Eagle stuff for me. I'm with you on no leaks and running fine.

@@AmericanSCPO yep, mines paid for too. I’d put a 117 kit or S&S motor in her before I’d trade it.

True but makes me wonder if this mod will make EPA Nazis come out for not keeping oil and vapors under control in system. Car engines are supposed to be sealed use the PCV vent back into air intake system. That's the real reason HD does it this way. Then again some oil can seep out of housing.

@@roadglide1745 if you are not dumping it in the ground and properly dispose of the oil, the EPA has nothing to fine you with... If you vent it to the ground that is something you can get in trouble for I am sure. For example, I empty the residue into my oil container and dispose of it with my dirty oil at the recycling center..

@@jordantserghanos2604 True but Vapors are a problem too. Charcoal canisters on all newer vehicles surprised that hadn't been mandated on motorcycle's.

Harley finally joined every other Vehicle manufacture that is already doing it, direct injection is a problem and it is not going away anytime soon, and it is getting worse. over 60% of all vehicles are doing this now and more will be in the next 5 years. Including motorcycles, some already have DI, some are being developed.

@@roadglide1745 My '98 Sportster had a vapor recovery system with canister, California at it's finest. The air box had a trap door that was vacuum controlled to keep the fuel vapors from escaping plus the vacuum controlled the fuel valve and closed it off when not running, they called it VOES.

True not like mine leaving the exhaust loose and not putting back some bolts on the clutch cover

Your words are so kind. I appreciate your post…..Doc

Great idea!

Naysayers? Some think puking hot dirty oily air into combustion chambers is a good thing?

Sportsters benefit also.

I agree, most Harley dealership employees showing good honest modifications other than stock brand stuff might not keep there jobs. I’m thinking Doc is either the owner or he is a plain very valuable employee.

thank the EPA..screwing up motors since 1970.

It would be nice if Harley Davidson fix problems like that themselves instead of expecting customers to do it.

Re burn that spells emissions control lol

If you have any mechanical ability at all, you can buy the hose, T, and a couple of extra breather bolts if you do it the way shown in the video for pennies on the dollar.

@@bigbob21 who makes the pre drilled manifold?

Its mostly water though right? it came from the motor so it couldnt be lethal for the motor in small quantities ..... baxter on his channel suggests only doing an ebs if your bike breathes really heavy.... on the M8, most carbon buildup on the pisions is because of sumping not IBS.

No it’s actual oil. Just wipe off the inside of intake mine used to be coated in oil before modifications

@@JDJD-xn4jewhat modifications did you do?

Agreed! however, you are still injecting, hot oxygen depleted air into the combustion process.

O

So you have put a camera in you combustion chamber and seen the clean pistons with your idea over Doc and just about everyone else? ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-23XS_5f_t_o.html

@@scott_0492 very little oxygen depleted air is getting in, the overwhelming amount of fresh air being sucked into the throttle body more than makes up for it.

Yup took me a min to play w oil levels. I noticed if it was a hair underfilled im good. A hair over it spits oil.

I wondered if crankcase pressure is cause , and shouldn't that be addressed first and like yours solve end result!

@@kpnomad7 An internal combustion engine is basically an air pump, when pistons move up & down the air on top of the piston isn't the only air being displaced, the air underneath the piston is also affected as the piston moves up & down which is why some type of crankcase ventilation is required in order not to build up too much air pressure(& vacuum) into the crankcase, the E.P.A. requires crankcase "gasses" to be routed and vented back into the air intake track of the engine in order to burn off any unburnt gasses(that may slip by the piston rings) to help reduce hydrocarbon pollution, the problem that Harleys have with oil in the air cleaner is that the crankcase vents are being overworked by the excess pressure of ever increasing engine volumes and with the extra air pressure the oil suspended in the crankcase vents doesn't have enough time to separate from the air and return back to the oiling system, the hope of adding an additional point of ventilation into say the dipstick apparatus such as the feuling is to decrease the overall excess pressure from the system itself helping the overall efficiency of the ventilation thereby giving the suspended oil more time to separate.

@@trekbsg will moco deny warranty for external breathers , like these or dipstick breathers???

@@kpnomad7 Good question, I wouldn't think so but it's a good idea to verify with dealer or moco, my bike is already out of warranty so it's not something I'm personally concerned with.

I ordered their catch can kit last week. stoked!

Your right they do, but at a huge price, you can make your own for under $25 and with almost no mechanical knowledge, it’s super easy.

I’ll be ordering that for my sportster soon

@@charliepoodle5151 their kit really isn't that huge of a price. If someone doesn't know what all goes into a system like that, it makes it pretty simple since they include everything you need. All the products I've gotten from them are quality products and when it comes to my engine I'm buying quality

@@beardedforlife3740 it is compared to how easy it is to do yourself and with the same quality products. Why pay a premium just for a name ? It’s not even visible......

Like dad said,”measure twice-cut once” Research until You are satisfied

Do you think that would work on a EVO ?

Is that a new dance? stumbling across video's? How is that even possible? Did your cat empty your video cabinet on the floor? Do you stumble across every meal you eat, too? How do you get to work? Do you stumble across the pavement without wheels on your car? Just wondering.

As it comes out as barely visible vapour you would think it wouldn't be such an issue with the running/tuning and quite likely emissions. But as the engine gets older and starts to wear out the vapor will increase. car manufacturers run the crank breather into the cam/valve cover I'm sure HD can do this its just the way HD have done it and plan to continue to do so and cost cutting...In 2020 sportsters are no longer sold in the EU and UK due to their poor emissions, it was stated that its not worth HD up grading the emissions its just easier to delete them from the range....

And what does this do to the warranty? HD isn't fond of mods and could invalidate the warranty.

That’s because running to intake makes vacuum

@@camomanofcranham This isn't really a Harley problem, other motorcycles also do this from what I have gathered, if not all of them. Few months back I installed an airbox removal kit into my old carbed 2005 Triumph Speedmaster. The kit contains K&N pods that are slapped right into the carb (or throttlebody if you have newer injected model) and for the breather tube, which used to be attached into the now tossed airbox, a small K&N filter to prevent creepy crawlies and crap getting into the crank case. Anywho, I checked the inside of the airbox and it was quite nasty. It had gathered quite a lot of oily gunk in there during its 18 year lifetime. Good thing my baby is not sucking that crap into the engine anymore...

@@MaaZeus if it works that great...I'm looking at getting them for my bikes over time...

If you think you’ll do a poor job just buy a aftermarket with ebs and if you need warranty just put original back on

Which one? I have a 2020 heritage and was looking into DK

I will look up the model number and I will let you know

I used model # DK-DIY-BH-BRT $49.99

Hey Willie so you have the 107 or 114 thx

I have the 107

No.

Ciao my friend. There are many rules in Europe on what you can and can not do to your Harley-Davidson. A “freer” air cleaner will not eliminate the oil mist. There are companies that sell parts to change where the oil/air goes. If you ride your Harley like a wonderful Ducati with a lot of RPM then the aftermarket breathers that attatch to the oil dip stick can be a good thing. Also lowering the oil level to half to 3/4 instead of full helps a little……Doc

Mark Volchko does it help? I been looking at the same

@@whatstheproblem6606 I think it did. I'm happy with it. And to clarify, I put an EBS on my stock air cleaner and it vents into their 4 stage catch can.

reason i stick to Honda and Kawa

EPA bro or face fines if you are corporation

@@jimmybe64 the metrics and Polaris ie Indian don’t have these issues and they meet EPA rules.

@@turninmonyin2noise978 I dont have issue. Only when you get really big pistons making high pressure in your crank case and then burning that oil. Where does Polaris send there oily mist from crankcase? Copy them if they have a better way. Postive crankcase ventilation is what Harley uses. You can't vent to atmosphere like older vehicles.

Yes you can change your air cleaner. Depending on your choice and the exhaust modifications on your bike you might have to add fuel. An inexpensive change is yo remove the football cover and add a plate to the outside circle. Get creative on designs. You will need to purchase a Rain Sock to cover when In Thunderstorms. Try looking on line at the Drag Specialties catalog. You could spend all day choosing a cool air cleaner…..Doc

@FABRY ROCK just another hater that can`t afford a Harley, hey?

@@Peter-976 i rode more than you to say that

Mines pretty badass.. sorry about your luck

@@Lettersandstuff how many miles?

blah, blah, blah, great input 🙄

Not sure where you were going with this comment but I always live a Radial story…..Doc

I don't want to rain on your parade of "Honda is awesome" but they are going to the Direct Injection style that is causing this issue due to EPA and EU regulations. The 1100 Africa Twin already has it and the New Rebel will also. Kawasaki is going to be doing it in the next couple of years also. This problem has been plaguing Cars for over a Decade now and more and more cars, trucks, vans, ECT are getting them year after year. Might want to actually look into what is causing it instead of going "Harley bad" Oh yea, Indian Motorcycles do this also.

@@Evirthewarrior I live in the uk, HD are not very popular, ive only ever seen two in the last 10 years, both were broken down, im more in to my groms tbh, but some of the HDs look cool and i think its a shame there not more popular x

@@hhuodod2209 Yea, smaller bikes might not have this issue, but as engines get more powerful, more and more are going to the Direct Injection and circulating the oil back into the engine to burn it off. There are a few solutions being worked on, like Toyota's Dual injection where they alternate between DI and Valve injection, but you still get build up on the cylinder heads. It is not going away any time soon and literally every car and motorcycle manufacture is looking at doing this if they have not already.

@@Evirthewarrior That kind of sucks, luckily im restoring a kmx 125, its a 2stroke that makes lots of nose and has no environmental crap to deal with. If only it had abs. Never been interested in bike bikes, i can ride a small bike on the edge and not go to jail.

Yea,but who the fu#k wants a Honda,they are for women and kids.

Thank you kindly…..Doc

Sorry to hear of your distress. Are you the one that services your bike? I believe you have multiple issues. Start with the battery. If three to four years old=replace. A Harley depends on a good strong battery. Next charging system check. A voltage regulator going bad can drain a battery. Note: a 5 mile to work ride at low rpm in the city struggles to recharge the battery after starting. With the battery and charging system all working their best, I would replace the intake seals. I am sure a 9 year old seal is leaking. Question: when was the fuel filter changed? If never now is a good time to install a new one. All the above are the building blocks for a good running Harley….Doc

A post a little too strong for me. By the way, take a close look at the 2024 CVO air cleaner breather system….Doc

Thanks for sharing your experience…Doc

Communication is lost between throttle grip and throttle body. I’m sure you have current engine codes…Doc

Where is the fun in that….Doc

That old crank case breather going up to the air cleaner….would puke a pint if the bike sat for a month….Doc

Well done Jose…..Doc

Thanks for sharing your tech tip....Doc

If the aftermarket part causes damage warranty will not cover…..Doc

I don’t have states. 3-5 Hp more. The belief by me is it is better to burn air and fuel then air-fuel and oil…..Doc

Lon if you are in question about any modification and how it would effect your warranty, check with your local dealer or call HD customer service…Doc

You are so right. A lot of information out there. I am a believer in the EBT. The other modification are good for large motors that use the upper RPM spectrum (4K-7K) on a daily basis. In my opinion….Doc

EBS it is !! Thanks doc . At times I wish I wouldn’t have got rid of my vtwin so much negativity about this M8 motor freaking headache .

Please use your engineering degree to help design a better product working for the Harley-Davidson Company….Doc

Assembly oil on rings and pistons?….Doc

@@LowCountryHarleyDavidson Thank you sir! Makes sense.

Usually builds up in the lower portion of the filter then drips….Doc

Glad to hear of your external air breather. I endorse an oil stick breather for owners that run in the 4000 to 6000 RPM range….Doc

@@LowCountryHarleyDavidson thanks Doc. I appreciate you getting back to me so quickly.