250-500cc 2010 WR300 - White Oil

So I just drained my oil and it came out all white....water is in my transmission oil...where should I be looking for the source?

head gasket??

Did you cross (go through) some deep water lately?

Fat Tire Flyer - No water crossings....

Sceep, thanks...I've been asking around and someone suggested Head gasket or water pump seal? Next question is how do I flush this stuff out? multiple oil changes..? And could there be any long-term damage done because of this?

my oils white too

I use mineral spirits ( not the white stuff in Home Depot), fill and drain a couple of times then follow up with cheap 10/40w a couple of times,
then fill with the good stuff. I have thought about filling with denatured alchohol to pull out the water.

Not on a 2 stroke. If you didn't go through some serious water, it's most likely the water pump seal.

yah its the water pump seal. Just got done doing mine. After u get it replaced do flush it out couple times.

Can be headgasket (inner) as well.

If it was the o-ring in the head (They dont have a gasket) water would be coming out of your exhaust too and it would be intensly hard to start.

Drain oil, refill - run for 1/2 hour then do it again.

Dont worry about kero or anything. Just use the cheapest oil you can find for the flush out.

If it is the o-ring then you can change them without even taking the tank off its so easy.

Stu

dont think its my head gasket, the bike runs great and starts easy, and no external leaks

Sometimes the aluminum clutch discs will leave the oil looking whitish/grayish. I had a Honda that did this and I replaced the aluminum discs with all steel discs and it never did it again.

I think if it was water it would be more hot chocolate color. Also did you measure how much came out? Thinking is if it was water leaking into the case it would have made the quantity alot more than should have come out. If it was enough to change the color.

This is what came out of my lower end all 800ml

Looks like water.

That's what mine looked like after sucking a bunch of water through the breather

well i changed the oil a few time since the last underwater excursion. The guys at Halls says that the water pump seal is the usual suspect so i ordered and ill check it after the next ride,

Hi, so I called Halls and they concur with the suggestion that the water pump seal is the culprit. I am going to replace the water pump seal, I've never done it before...any suggestions? Is there a sticky or video that you can recommend? I am handy on a bike but I am open to suggestions....

Yep that is definitely water. The aluminum would make it much more gray. Never done a water pump seal, so if you end up with some good tips let us know!! Good luck.

Ha, excellent timing. Changed mine to the same last night, ended up tearing down and going through everything. It's gotta be the water pump seal on mine as well, but I'm trying to find how to pull that bastard apart to replace it.

I know on mine you have to remove the left side cover or which ever side the clutch is on and remove the impeller shaft. Getting the seal out is a different story. Dont know the correct way to do it it just takes time and patience.