Oil in Air cleaner!! - Harley Davidson Forums: Harley Davidson Motorcycle Forum
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post #1 of 6 (permalink) Old 09-13-2019, 07:06 AM Thread Starter
Join Date: May 2018
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Oil in Air cleaner!!

So last night after riding home, I noticed a very small amount of oil on the right side of the bike (02 883 sportster). Mentioned it on a sportster facebook page, and someone said to check for oil on the bottom and behind the air cleaner. Sure enough there was oil, as well as a small amount inside the filter box itself.

Someone said breather bolt assembly in the head.

Any thoughts?? And is this a common issue?
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post #2 of 6 (permalink) Old 09-13-2019, 12:00 PM
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HD routes the oil back into the throttle body inside the air cleaner because of EPA restrictions. A buddy of mine bought a used 2013 Street Glide and his filter was saturated. We ran a external breather from DKCustomproducts and that fixed the issue.

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post #3 of 6 (permalink) Old 09-13-2019, 12:03 PM
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Stock breather?
Oil not over filled?

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Last edited by Thunder~Struck; 09-13-2019 at 04:05 PM.
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post #4 of 6 (permalink) Old 09-13-2019, 03:31 PM
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Going to an external vent is a good idea, but if the tank is overfilled it still could do that until you find the correct level.

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post #5 of 6 (permalink) Old 09-13-2019, 10:27 PM Thread Starter
Join Date: May 2018
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Air cleaner is all stock yes. I changed the oil about 3 or 4 weeks ago and made sure I put in the spec. amount. Air filter probably needs changed, but doesn't look all that dirty to me
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post #6 of 6 (permalink) Old 09-14-2019, 07:17 AM
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If there are no other problems, only a small oil film will coat the inside of filter, and sooner or later, if not cleaned, will drip out. Make sure to never overfill the oil, make sure filter is clean, make sure the crankcase vent is clear.
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