Oil blow out the breather

What would cause oil to blow out the breather on a Harley Davidson Sporster 1200 motor?

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Anonymous Mar 19, 2014

Oil is coming from my breather on my Harley 1200 sportster
Anonymous Mar 20, 2014

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Anonymous Mar 28, 2014

What causes the kickstart on a 1965 Harley Davidson XLCH to operate for a while, then pass through with little to no resistance?
Anonymous Mar 31, 2014

My 1985 harley ss is puking oil out vacume line and blowing oil out thesides of motor been sittin cuple years

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Anonymous

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Posted on Nov 20, 2008

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An overfull oil tank will do it. Even if not overfull just about all harley's will blow oil out the air filter. Unless there is a bunch of oil coming out, it's not a problem What I've found is that the air filter eventually gets saturated and then starts to leak through. The level in the oil tank doesn't seem to matter. If you change the air filter the problem goes away, until the new one gets saturated and then it starts all over again. My plan is to get a K&N air filter, which you can clean yourself and save having to buy a new air filter every 4,000 miles or so.

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Anonymous

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Posted on Mar 23, 2009

SOURCE: oil blow out the breather

too much oil; bad umbrella valves in rocker covers;

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What causes oil to come out of the breather on a Harley?
Top breathing engines breath, or vent, through the top breather bolts which are threaded into the heads of a Harley Davidson motor. The air inside a motor is saturated with oil. When oil drips out of an air cleaner assembly, it is usually an indication that the air cleaner element is due to be cleaned, or changed.Oct 22, 2019

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I found this article that should help you alot with theory part of why this is happening.'
It's from a sportster but an older model than yours. Take a look and see if you can get it cleaned up.
http://www.mklsportster.com/xloilblowbyarticle.htm

Good Luck and Thanks for using FixYa

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