Question about Suzuki DR-Z 400 S Motorcycles

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More on ... 2006 Suzuki DRZ400S oil leak from bottom of air cleaner.

Hello,

I bought the bike with 2,400 miles on it. I am assuming that the previous owner was not able to do any significant damge to the rings during that period of time but, I do not know for sure.

I have not ridden the bike that hard so, I do not believe that I have damaged the rings. The bike now has about 6,300 miles on it.

I took it into a Suzuki dealer and they basically just checked the oil level, which was fine, and they wiped out the air cleaner.

I did not notice any leakage for about a week but, then it started again. I guess that it took that long to build-up in the air cleaner before it started to leak out again.

Come to find out, this bike came from California so, it has extra emmision **** on it. I wonder if that has complicated this situation?

Is there a value on the breather hose that may be defective?

See...

http://www.westfieldyamahasuzuki.com/pages/parts/viewbybrand/default.aspx

and...

http://www.westfieldyamahasuzuki.com/pages/parts/viewbybrand/default.aspx

for part lists.

Do you think that the extra emmisions **** is complicating this problem? If yes, can the extras emmisions **** be removed? How do I do that?

Do you have any other suggestions as to how I can prevent oil from enterring the air cleaner case from the breather hose?

--
Thank you,
Tom Kraus
tkraus@centtech.com

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Add a pcv valve by disconnecting the hose form the breather box and installing a universal crank case vent pcv valve p.c.v positive crankcase ventilation
this should solve your problem, you can purchase this valve at any parts store like advance auto parts o reilly or auto zone

Posted on Jan 22, 2009

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Posted on Jan 02, 2017

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SOURCE: More on ... 2006 Suzuki DRZ400S oil leak from bottom of air cleaner.

Hello,

Thank all of you very much for taking the time to help me resolve this problem.

As it turns out, after two trips to the Suzuki dealer and $200+ later, it was determined that the previous owner had removed the Oil Return Tank and tied-up the hoses.

Apparently, he thought this was unnecessary emissions equipment but, the Emissions Control section of the Service Manual does not even mention the Oil Return Tank.

I have not noticed any oil dripping out of the Air Cleaner over a two week period, after a new Oil Return Tank was installed.

When buying a used bike, ALWAYS ask the owner several times what parts have been removed and/or added?

--
Thank you,
Tom Kraus



Posted on Mar 16, 2009

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