oil leaking from breather on a 1995 883 sportster. will it stop?
here is the problem the best i can word it, i have an excess of oil leaking from my air breather. from what i understand oil bypass in the top end is directed into the breather to be "recycled" or burned instead of dripping onto the ground as in days of old. i am getting a build up of oil in between the jugs as the oil leaks out of the breather instead of being burned or sucked back into the carb. anyone have some solutions? thanks for your time.
The heads breath into the air cleaner from the factory for EPA reasons. The two bolts holding your air cleaner to the heads are the breather bolts. Inside the head are umbrella valves which are little rubber valves which help to separate the oil vapors from the air. Some oil droplets will exit the breather bolts with the intended path into the carb intake which is then burned off in the engine. The umbrella seals tend to wear out and need replaced after several years. You will need to replace those. Another option is to get a head breather kit (even the dealer sells one) and install which then directs the oil mist to the ground. One thing I would do for sure is run a compression test and leak down test on the engine if the blowby is excessive to rule out internal engine issues.
It has been answered already but lower your oil level a little or just wait and it will do it by it's self. It is normal for an oily mist to enter the breather but if the bike if past half way up the dip stick is hen you'll see an excess there.
Poor piston ring to cylinder seal increases blowby which increases the amount of air/oil coing out of the head breather bolts. Also if the umbrella seals are getting bad they will allow more to escape.