Question about 2006 Suzuki DR-Z 400 SM

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2006 Suzuki DRZ400S oil leak from bottom of air cleaner.

Hello,

After riding, oil drips from the cap (called a Valve) at the bottom of the air cleaner.

How do I resolve this?

--
Thank you,
Tom

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  • 83 Answers

Often times there is a engine breather tube that has to do with emissions that runs from the engine to the air filter breather box. This tube can in some cases blow oil through it when the engine is run hard. Make sure you're not over filling the engine with oil when you change it because this will cause the oil to "blow off" the excess and the air box is where it often goes.
There is also another possibility, are you using too much oil in your air filter after you clean it? This too is a common cause for oil in the air box, if that's the case I would not worry about it.
The last case scenario is one you don't want, that would be washed out rings which cause blow by and that in turn causes the engine to blow oil out of the breather tube which I'm confident it venting into the air box.
Please let me know if these resolve your question and if not give me more details and I will be happy to assist you further.
Regards,
RSelvy

Posted on Dec 08, 2008

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Posted on Jan 02, 2017

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