Water in oil? - Kawasaki KLR 650 Forum
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post #1 of 12 Old 03-20-2016, 05:07 PM Thread Starter
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Water in oil?

Just picked up an 08 klr 650. Maintained and modded by a klr enthusiast, and good guy. Recently (year or two) had eagle Mike 658 kit put on. Took bike for first ride, noticed white/yellow foam in oil level window and in oil cap. Immediately dropped oil, little dirty, but not bad, filter ok. Pressure tested coolant system, very slow leakdown, didn't seem bad, no coolant leaks, smoke, no drips from water pump drain hole. No water immersion known from previous owner. Any ideas? Next steps? Rad was full of coolant but overflow bottle was empty prior to ride, I topped it up. Thanks to all for any comments.
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post #2 of 12 Old 03-20-2016, 05:17 PM
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Welcome! A fellow Albertan too boot!
In the cooler weather (lol, like here) it's quite common for these bikes to form some condensation that shows up in the site glass and on the bottom of the oil filler. My 08 does it if I'm doing short trips in cool weather. The remedy is to take if for a good long run and get it hot enough to clear the condensation from the oil.

Now, if your bike is producing more than a light film you might have a coolant leak. However, if your coolant isn't going down and your not getting white smoke from the exhaust I kind of doubt it. Even more so if you didn't see any water in the drained oil, it's usually pretty obvious when you dump the oil if you have coolant in it.

One more item of interest on the KLR's is that the oil looks filthy fairly quick after you change it. Yours has the 685 (oops, 658!) so you might not run into it, but on my stock 08 the oil in the window is pretty much black after a few hundred km's. Kinda weird too, it's the only bike I've ever had that blackened it's oil like that.
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post #3 of 12 Old 03-20-2016, 05:18 PM
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IF there is a slow leak down and you are getting water for sure in your oil then i would be going after the head gasket and or the head surface itself. I always check every head surface for flatness while doing the swaps, do a visual check also to see if there is any cracks inside the head around combustion chamber and passage ways....2 years ago I had one come in with the same issue but it was left to freeze and the owner didn't say anything, i did all the work, no signs of anything at all, started it up and it instantly sent all coolant into oil.....it had a massive crack in the cam chain tunnel...it was weled shut and resurfaced and it's running today.....just as an example.....if you got it super cheap etc below what you thought is a good deal then this is why.....I would run it to make sure it's first not just condensation built up then if it continues it would be teardown time imho. IF you are capable of turning a wrench and have wrenches et, it'll cost you a head gasket and side cover gaskets, just to look. Then it'll be whatever you find after that.
Sorry.....fingers crossed.

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post #4 of 12 Old 03-20-2016, 06:20 PM
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It's condensation as Stew suggests so let your blood pressure come down. Don't think you have anything to worry about.

Where in Alberta are you located???
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My Kaw Barn - 2004 KLR, 2006 Concours (sold), 1997 Bayou 400.

"It's a friggen motorcycle, it's not supposed to be comfortable, quiet or safe. The wind noise is supposed to hurt your ears, the seat should be hard and riding it should make you shit your pants every now and then. "

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post #5 of 12 Old 03-20-2016, 06:20 PM Thread Starter
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Water in oil?

Thanks for the replies. I'm hopeful that it is condensation related. Due to picking it up in the middle of winter, I may have been guilty of starting it up a time or 5 to listen to her run. Previous owner is a trusted guy, he never had this issue. I've read a few stories now about short trips, and cool weather causing this with others. I'll keep an eye on the overflow tank to see if it draws down over time. Because the oil itself seemed fine, I believe condensation is the culprit. I'll put some synthetic in her and run her up to temp. She has the pro cycle "thermobob" copy. Any info if it is as good as the original? Anyways it should allow the engine to come up to temp faster, and stay there. The bike runs strong, no smoke, so I'll keep my fingers crossed and wait and see. Thanks again!
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post #6 of 12 Old 03-20-2016, 06:22 PM Thread Starter
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Whew! Thanks. Fort Mac
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post #7 of 12 Old 03-20-2016, 06:25 PM
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If you are ever down Edmonton way drop by for a brew ski. Darned if I'm going up to Fort Mac!!
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My Kaw Barn - 2004 KLR, 2006 Concours (sold), 1997 Bayou 400.

"It's a friggen motorcycle, it's not supposed to be comfortable, quiet or safe. The wind noise is supposed to hurt your ears, the seat should be hard and riding it should make you shit your pants every now and then. "

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post #8 of 12 Old 03-20-2016, 06:34 PM Thread Starter
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I may do that!
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post #9 of 12 Old 03-20-2016, 06:38 PM
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It has to be condensation if you have started up during our freezing winters just to listen to it for a second or 200...lol....it needs to burn off all the water now, so run it as it is for a few good runs then drop the oil to clean the cases out but i would run her first....imho. Now I hear you starting it and not riding it then that is what it is....plain and simple.lol
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post #10 of 12 Old 03-20-2016, 06:44 PM
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If it turns out not to be condensation and the clutch cover case has been recently removed, the water pump seal may have been damaged when the case was put back on. It is easy to damage this seal on the edge of the shaft.
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