Primary breather
Thread Starter
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Seasoned HDF Member
Joined: Jul 2017
Posts: 5,749
Likes: 1,603
From: High Point, NC.
To answer your question, the vent retrofit is HD's de-facto repair for transmission-to-primary fluid transfer. It's been reported that some dealers will not perform the retrofit under warranty unless transfer has been verified and documented by them. It's a relatively simple self-install, worst-case scenario.
@ 17K myself, mine is not transferring. I have nothing on my bike to address transfer.
@ 17K myself, mine is not transferring. I have nothing on my bike to address transfer.
after 39,000 miles on my 8 / 2016 early build oil cooled 107 my transfer was minimal enough that I stopped worrying about it..it would have met the 5 oz in 5000 mile replacement criteria but I was told it was not a warranty covered 'fix' because it was a TSB..since it remained completely manageable for so long, not only never got worse, seemed to stabilize, so I wasn't planning on doing it regardless of who was fitting the bill
Road Warrior
Joined: Jul 2009
Posts: 1,579
Likes: 144
From: SC
So, I haven't been here much lately.....too much good riding weather.
But wanted to get something confirmed. I initially had some trans fluid transfer issues, had them check it at the 5000 mile service. They checked it a couple more times and said it was fine. I dont believe them, but its ran great since then......17000 miles on the bike now. So I didn't worry about it.
Warranty is out now of course, but what is the deal with the primary vent that comes with newer bikes. Is this a tech bulletin? Can I get the vent installed on my bike? Should I?
Thanks for any info.
But wanted to get something confirmed. I initially had some trans fluid transfer issues, had them check it at the 5000 mile service. They checked it a couple more times and said it was fine. I dont believe them, but its ran great since then......17000 miles on the bike now. So I didn't worry about it.
Warranty is out now of course, but what is the deal with the primary vent that comes with newer bikes. Is this a tech bulletin? Can I get the vent installed on my bike? Should I?
Thanks for any info.
if not, its like $36 or so from Surdyke, and about an hour to install at home with a regular drill and 11/32 bit. The kit includes a new primary gasket, vent tube, and drain plug oring.
Thread Starter
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Seasoned HDF Member
Joined: Jul 2017
Posts: 5,749
Likes: 1,603
From: High Point, NC.
If my indy does it, it would only be like 60 bucks and if HE messes it up, its on him. 60 bucks is cheap peace of mind to me..haha
Stellar HDF Member
Joined: Apr 2007
Posts: 2,339
Likes: 486
From: Nor Cal
I bought the vent kit for 30 bucks and installed it myself in less than an hour, I dont know of any cheaper insurance out there. no brainer IMO
Stellar HDF Member
Joined: Apr 2007
Posts: 2,339
Likes: 486
From: Nor Cal
virtually impossible to mess it up IMO
Road Master
Joined: Aug 2012
Posts: 1,008
Likes: 229
From: Saskatchewan
I had all kinds of fun getting the vent installed. One call to Harley Canada and it got done. I had it first documented at a dealer in Colorado but my dealer said they had to document it too. To top it all off they were charging me to check the oil levels. The dealer claimed they needed to document it before Harley would send the kit. I talked to a dealer in the US and was prepared to ride down to pick up the kit and do it myself.
In my case it was off the dipstick in aprox 1500 miles. I don't care if they claimed there was still enough oil in the transmission to prevent damage, how do you know if there's anything left in it when it doesn't touch the dipstick? Not reassuring when you're 1000 miles from home.
In my case it was off the dipstick in aprox 1500 miles. I don't care if they claimed there was still enough oil in the transmission to prevent damage, how do you know if there's anything left in it when it doesn't touch the dipstick? Not reassuring when you're 1000 miles from home.
HDF Community Team
Joined: Mar 2017
Posts: 7,889
Likes: 4,451
From: Texas
This is true, unless it was documented while under warranty, as was my case. I noticed transfer while under warranty, took it in to dealer along with the service bulletin, they said nothing was wrong. Fast forward two years and I'm 6 months out of warranty, noticing more transfer. I took the bike in along with the updated service bulletin and service record showing the transfer issue noted. The dealer called the Moco and the Moco installed under warranty.
Thread Starter
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Seasoned HDF Member
Joined: Jul 2017
Posts: 5,749
Likes: 1,603
From: High Point, NC.
This is true, unless it was documented while under warranty, as was my case. I noticed transfer while under warranty, took it in to dealer along with the service bulletin, they said nothing was wrong. Fast forward two years and I'm 6 months out of warranty, noticing more transfer. I took the bike in along with the updated service bulletin and service record showing the transfer issue noted. The dealer called the Moco and the Moco installed under warranty.
It wouldn't surprise me though that my service dealer didn't have a record of me asking them to document it. Thats how shady they seem to have become, but I may have to find out. Thanks!
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Advanced
Joined: May 2019
Posts: 75
Likes: 17
From: Mountain Md.
Dropped my 19 SGS off today at the local dealership, to have the vent kit installed, under warranty. Mine likes to transfer the tranny oil to the primary. Added close to 10 oz. in 4 months of owning it. Also having a SE tuner installed while it's there.
Did you take 10 oz out of the other side?