Hello! So I recently just purchased a brand new 23' KX250...
1) Put about an hour on the break in oil. Changed oil, changed filter, no issues.
2) Week later, washed the bike from the previous ride and headed to the track with the fresh oil and oil filter change. Put about 30 minutes on it. Get back to the shop, oil was milky tan through the sight glass, so I decided to change because I know that this is usually not a great sign. (Oil filter was free of debris, coolant level was fine, and no white smoke when riding. So no coolant is leaking into the engine.)
3) I proceeded to drain and put some fresh oil in once again along with a new oil filter. Ran bike for about 30 SECONDS, took a look through the sight glass.. already the oil was milky tan. (My buddy stopped by our shop about an hour after and said that the oil looked normal. Maybe there was still some of the old stuff in there that settled by the time he showed up?)
Overall I am very confused & slightly worried. The bike is brand new with hardly any time on it, and I do NOT ride hard! (C Class baby!) I've talked to a few of my other buddies who are much, much more experienced & knowledgeable in moto. Some of their suggestions are, "bad oil", "part of the break in period", "get off the clutch!", and "maybe one of the nuts on the engine are loose & water seeped in when washing". I hope someone will be able to give me some suggestions as what to do or what the issue may be. Bike is completely stock and I cannot afford to rebuild this thing! (Picture below is from the oil change after riding 30 MINUTES).
Air foaming. How does it look in the sight glass if you let the bike sit for 30 mins after riding?
Thanks for the response. Bike sat for about 4 hours after riding before I checked the sight glass/oil came out like shown in the picture. I have not yet rode the bike since I last changed the oil because of the immediate color change after idling for 30 seconds after changing. What would cause air foaming? What could the potential damage be?
Possible condensation from night/day temp swings and washing the bike with cold water. And also starting the bike and not really getting it good and hot and burning off all the condensation. More likely in humid areas.
Not familiar with the Kawi, but what type of engine breather does it have? Is it open like the Austrian bikes or plugged like Hondas are/were? Condensation like this was an issue on Hondas because the breather is plugged and is a routine maintenance item to open it up, let the condensation drip out, and clean the watery oil sludge out.
How about smell? Does it smell sweet? Burnt?
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Take it straight back to the shop.
no smell!
I’d be heading to the dealer.
Looks weird to me. Make the dealer aware before you put any more hours on it. Probably something minor but still.....i'd document that with the dealer just in case.
Its straight up water in the oil. so either head gasket, water pump seal leaking, open rad and see how low the coolant is
it does not take much water, like a few ounces to create a milk shake affect. Its got to come apart and inspect! unless there is some obscure thing that you are not sharing, (and I doubt you are not) its water, water, water and its got to be coming from the rad. there is no other place for it to come from.
Hopefully just a water pump seal or head gasket.
That's the weird thing, no coolant lost what so ever.
Any chance water got in the exhaust or intake when you washed it?
I see you're from Wisco. With the drastic change in temps you guys have had in the past week, I could be condensation. I lived in Minnesota a couple years ago and had my brand new kawi do that when I rode Cedar Lake. I changed the oil and filter and never had a problem.
I cannot see water from condensation, at the needed amount, causing that level of contamination. Maybe i am wrong, but your lawnmower, weedmaker, etc etc sit all year long, cold hot, rain shin etc Its prob water pump seal, seeping, and the level of water can drop a few millimeter and not look low and that is a lot of water across both rads. So if you change the oil. run it for 20 min and its milky, its not condensation. you could clobber the exhaust with water and it still is not going to get into the cases. heat will dissipate some water but there is enough to cause that, hence its gotta becoming from somewhere
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