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View Full Version : blowing oil through crankcase breather



chowy12
11-07-2013, 04:10 PM
Can anyone tell me the symptoms of blowing oil throigh my crankcase breather? 06

blacknblue#2
11-08-2013, 06:20 AM
Your getting "blowby". It can be caused by a few things. Crank seals, a pressure releif valve thats not operating correctly, or at worst case you could be due for a top end rebuild.

2001400exrida
11-08-2013, 06:28 AM
Also over filling your oil will do this as well. lots of people put a whole qt in their crank side and end up with a oil blowing out when the pressure builds.

blacknblue#2
11-08-2013, 06:46 AM
agreed that is actually a very common mistake. These motors dont hold much so too much or too little can make a mess of things in different ways haha