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Discussion Starter #1
What other causes besides a leaking water pump seal would cause the oil in the sightglass to look "milky"?
This bike has just been overhauled
 

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Cross your fingers. If the block was washed down, some solvent or water could have remained. I'd change oil and see if it reappears.

Got any oil in the cooling system? That might indicate head gasket.
 

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In four years the only time I've seen water in oil on a KLR was after a day of riding through rivers and mud. We figured it got in through the oil breather somehow. Like Bigiron said, "change the oil out, flush the engine and see if it happens again".
 

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What other causes besides a leaking water pump seal would cause the oil in the sightglass to look "milky"?
This bike has just been overhauled
A little bit of condensation and a short ride to mix it with the oil will cause this. Take it out for a half hour+ ride and get the motor warm. The condensation will evaporate and the oil will look normal again.
 

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Good point about the cold weather. Causes different metals to shrink at different rates maybe increasing tolerances so that a seal would leak.

Ride it a little and see what happens. Watch the coolant temp for overheat tho in case it is a headgasket, etc.
 

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I'm voting it's cold weather. How cold is it where you are?
 

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Discussion Starter #8
Thanks for your quick replies!
I am new to KLR's and this forum and I am VERY impressed with all your help.
No condensation problems here in the Philippines! GREAT RIDING all year!
I had some condensation problems with bikes when I lived in California, but never here.
Checked the coolant today and it was down some.
I drained the coolant and don't see any oil in it.
Pulled the water pump off and the rubber seals with the spring look o.k. but I'm going to see if I can get a new one here cause it's the easy way out.
If it is the head gasket would'nt I see steam coming out of the pipe or oil in the water?
Thanks for your help.
 

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Remove the radiator cap when the engine is running and watch for air bubbles if you see air bubbles it is most likely a head gasket or poss warped head. when a head gasket goes bad it does not alway's let water in the oil or oil in the water. do that check after you get the water pump put back together if you see no bubbles change the oil and keep an eye on it.
 

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Discussion Starter #10
Hold the phone..........back up........boy, am I STUPID!!!!!
Drained the oil. No coolant in it!!
Then I discovered that I was looking at the aluminum in the sight glass which made the oil look like a tan color. I thought that it was the coolant in the oil but it's not!!!
The oil pump setup on these things is really cool! I have not had too many water cooled bikes in the 52 years I have been riding but I like the seal set up on the KLR. No wonder why not many people complain about them.
Thanks again for all your help.
Sad part is that I will probably have more dumb questions in the future.
By the way, I'm in love with this bike!!! It is all that people say they are and more.
Anybody that complains about no power or vibrations should have ridden the old Harleys that I grew up on!!!! Ride for one hour and wrench on it four six!!!!
 
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