Question regarding Airrated Oil from Head tube

4 replies to this topic
  • John_Lorenz

Posted May 16, 2002 - 05:42 AM


Hey my bud just got a 02WR426, I have a 00YZ426.

He went riding yesterday and after he noticed that a spot of milkie drainage was on the Truck bed.

There was an earlier post @

With the same question in 2001.

Has anyone determined or come up with a explain other then the post. I believe this is airated oil. Day was cool and the bike was trailed around mildly "VERY Mildly" probably rode 1 1/2 hours on it.....

I have not seen this from the YZ

[ May 16, 2002: Message edited by: EgoAhole ]

  • MN_Kevin

Posted May 16, 2002 - 07:08 AM


This is very normal AND expected.

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  • Ga426owner

Posted May 16, 2002 - 07:24 AM


This is very normal especially if you overfill or base your oil level on the top line portion of the dip stick oil level indicator. I fill mine to the mid mark & have little to no leakage. Yes it is aerated oil.........

  • ISBB

Posted May 16, 2002 - 07:42 AM


Whew i was gonna ask the same question a couple days ago but i fingerd it was cuz i put a bit too much oil in it... not like comin out the top but a little over the full mark.. i too had went on mild trail rides taht day for bout 2 1/2 hours and parked the bike and a hour later noticed the same milkyoil on the concrete of the garage then i came to the conclusion that i put too much oil and it just overflowed.. OHH WELL... a littl emore mobile 1 down the drain..

  • blue_beast_wins

Posted May 17, 2002 - 12:35 PM


Call it condensation folks, no doubt you went throu a river or even a puddle will do it.


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