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Thick blue oil like substance from valve cover gasket

6 posts in this topic

I just parked the 14 YZ450 and noticed some thick blue oil like substance on the stand as I was getting ready to throw it on. I wiped it up so I don't have a pic to show but further investigation shows where it ran down the side of the cylinder from just under the valve cover gasket. I didn't pull the tank or airbox so I'm not sure if there is any on top of the valve cover or not. Any ideas what this could be? I guess worth noting is that I have changed the air filter and the filter oil I'm currently using is red in color. Bike has about 4 hours on it.

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Mine had blue oil in it when it was new, yes.

Mine was blue also on my 450fx. I just changed it yesterday.

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