oil blowing out crankcase breather - Yamaha Rhino Forums - Yamaha UTV Forum
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post #1 of 6 (permalink) Old 06-04-2009, 05:41 PM Thread Starter
 
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oil blowing out crankcase breather

o.k. new to this site and rhinos i know someone can tell me whats up. I'm starting to get oil comeing out of the crankcase breather i checked it before we went out and the level was good came back in after about 10 miles of driving and it blew out about 1/4 of a quart of oil this just started happening i have about 300 miles on this and its a 660 thanks for any info
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post #2 of 6 (permalink) Old 06-04-2009, 05:47 PM
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Originally Posted by racerx View Post
o.k. new to this site and rhinos i know someone can tell me whats up. I'm starting to get oil comeing out of the crankcase breather i checked it before we went out and the level was good came back in after about 10 miles of driving and it blew out about 1/4 of a quart of oil this just started happening i have about 300 miles on this and its a 660 thanks for any info
you need a siphon break, unleashedutv or utvcrap sells them, it allows the oil to ride up in a bottle and fall back into the motor, it usually happens at higher rpms.

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post #3 of 6 (permalink) Old 06-04-2009, 07:52 PM
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Get that siphin brake. If you don't make sure you watch your oil level, the 660's don't oil themselves very well if the oil level gets even a little low. Keep an eye on it, or it will cost you.
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post #4 of 6 (permalink) Old 06-04-2009, 09:48 PM Thread Starter
 
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Big thanks i just ordered one!
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post #5 of 6 (permalink) Old 06-05-2009, 12:00 AM
 
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Lots of oil out of the breather is usually caused by excessive blow by of the rings. If the piston is seated well then there should be very little oil comming up the vent. There will more oil if your vent is hooked to your intake as the vacuum will pull some oil up the tube.
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post #6 of 6 (permalink) Old 06-05-2009, 01:00 AM
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That mainly happens when you are running at high RPM's. If it happening all the time you may need to freshen up your bottom end



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