So I flushed out the coolant put in some fresh shit at the beginning of the season around April, everything has been fine except for the coolant level in the reserve tank constantly changing. Some nights it would be really full, other nights really low. Thats passed and the coolant level has been a lot more "stable", but now with cooler weather there has some been white murky shit at the bottom of the reserve tank which appears much denser than the coolant. What is the murky shit and whats causing it? My bike hasnt been overheating and has been running fine.

When you say murky, is it milky white or grayish? If it is, check your oil sight glass and see if the oil looks funny also. Hopefully you will reply with "no, the oil looks fine". If the oil also looks milky, then motor oil and coolant are mixing. Not good.

Kind of hard to say what the coolant looks like. Its always a very small amount, maybe a centimeter high. Hard to say if it looks milky white or grayish, Id lean more towards gray however the oil looks fine, a very deep black/honey color. Im using some Motul Motocool Expert shit, I dont know if its actually good or not but Motul is a reputable name so I went for it. Heres what the bottle looks like

http://www.moto.ru/files/408661-Motocool%20Expert.jpg

Too bad I cant take any pics of what it looks like, parents took the digi cam and theyre out of the country.

You can always send an oil sample in and they will analise it for you. The report you get backs tells you if coolant is present in the oil.

You can always send an oil sample in and they will analise it for you. The report you get backs tells you if coolant is present in the oil.

I dont think theres any oil in the coolant, if there is then Im gonna fucking flip out, a blown head gasket will piss me off beyond hell.

Edit: just mixed some of the coolant/oil Im using and after thoroughly mixing the two together, the oil is lighter and rises to the top and theres no sign of the milky white shit in my coolant tank.

Cool, then at least you can cross that off the list. If this was the first time you flushed the coolant in the bike or if you changed the type (or sometimes brand) then you might be seeing some of the old coolant not mixing with the new or residue from the cooling system flush. As long as the bike is not overheating then you should be ok.

It happens on mine also no idea what causes it I just flush it

Ok Im bringing this thread back because this coolant issue is pissing me off. Again I flushed the tank and cleaned it last night, filled it up and then this morning I check it. Again I find that almost half the time is filled with this denser white shit. Could it be that the coolant Im using is going to shit?

Why don't you try switching coolants and see if it happens again. It might be that the coolant is separating. You are using good stuff, so I don't know what else to try.

Im kinda strapped for cash right now, I need to get this shit sorted out before winter comes.

that's usually what oil looks like when it mixes with coolant. Could be a seal on the waterpump impeller shaft that is allowing some oil to seep past.

that's usually what oil looks like when it mixes with coolant. Could be a seal on the waterpump impeller shaft that is allowing some oil to seep past.
I did a little test, I took some oil and coolant then mixed it in a coke bottle and shook it for a bit. Left it to settle then the next day I checked it out. It had coolant on the bottom, white murky shit in the middle and then oil on top, however in the reserve tank the murky shit is always at the bottom.

Would it be the #11 o-ring youre talking about?

http://img180.imageshack.us/img180/2755/waterpumplm3.png

Update: When I drained out the old coolant in the reserve tank, I left it in a bottle and checking it out now, the top of it is a "bright" green like coolant usually is, then it slowly fades into a yellow with the white murky shit at the very bottom. I hope to hell that this isnt a blown head gasket, if it is then Im selling the bike. What can cause a blown head gasket?

I did a little test, I took some oil and coolant then mixed it in a coke bottle and shook it for a bit. Left it to settle then the next day I checked it out. It had coolant on the bottom, white murky shit in the middle and then oil on top, however in the reserve tank the murky shit is always at the bottom.

Would it be the #11 o-ring youre talking about?

http://img180.imageshack.us/img180/2755/waterpumplm3.png


Number 5

Pics... Oil looks low because I had it running. The pic of the pop bottle coolant, its not as green as it looks. The top looks like that but fades to almost a yellow color. Bottom of the tank you can see the white murky shit.

where can you send oil to get it analyzed? We do it to our helicopters but i haven't heard you can do it for cars.

I was wondering what happens when the coolant boils over? On some very hot days I remember the coolant bubbling a bit, but the temp of it was about 100 celsius and apparently the coolant is good for up to 130.

where can you send oil to get it analyzed? We do it to our helicopters but i haven't heard you can do it for cars.
http://www.blackstone-labs.com/
Standard test is like $20.

I was wondering what happens when the coolant boils over? On some very hot days I remember the coolant bubbling a bit, but the temp of it was about 100 celsius and apparently the coolant is good for up to 130.
When the coolant gets too hot, the resevior fills up and spills out the overflow tube. Usually it leaves little to no coolant in the resevior once everything has cooled off. I don't think your problem is related to high temps. I'm guessing either contamination, or possibly some chemical reaction with contaminants and the new coolant.

Why don't you try doing a complete and thurough flush of the entire system using only water and no coolant. Drain everything, fill with water, then drive around a bit so that the thermostat opens and water flows through everything. Let it cool, then repeat.

See what happens then. By eliminating the coolant, is may be easier to determine what is forming in there. And the possibility that some reaction is happening with the coolant you're using can be ruled out.

Is that coolant a pre-mixed coolant? or is it concentrated? If it does not say it is pre mixed, you should mix it 50/50 with distilled water. That looks REAL bright in the pics... so I am wondering if you are not mixing it right and thus it is acting crazy.

What I did the other day was removed the reserve tank and connected the tube to a hose and then ran it to a bottle, turned the bike on and left it until the fan ran. I thought I had the system properly bled but air bubbles came out, little bit of coolant, more air, little bit of coolant and that continued for a bit until only coolant came out. Then I hooked it back up to the reserve tank and poured fresh coolant in so it would be "sucked" back into the engine.

Of course I go for a ride and theres a little bit of the shit in the bottom already.

My plan of action so far is take the tank off, clean it out thoroughly to make sure none of the residue is left on the inside, then do the same thing that I mentioned above, and then go for a ride. If this doesnt work then Im going to flush out the coolant and run 50/50 distilled water/vinegar for a bit, flush, repeat, then run distilled water and do that two more times to make sure that all the deposits and whatnot are out.

Is that coolant a pre-mixed coolant? or is it concentrated? If it does not say it is pre mixed, you should mix it 50/50 with distilled water. That looks REAL bright in the pics... so I am wondering if you are not mixing it right and thus it is acting crazy.
Coolant is premixed, says on the bottle "ready to go, do not dilute" etc etc. Its pretty bright.

I drained out the reserve tank yesterday and low and behold, the coolant wasnt what fresh coolant looks like. It was almost a yellow, so something tells me that there must be something contaminating it. Im starting to think now it was the "distilled" water I used, which was actually just water from our dehumidifier, I was too cheap to buy distilled, but its sure as hell costing me now though.

Almost everyone I've talked to has noticed this stuff. If it were a blown head gasket, your going to have coolant in your oil, not oil in your coolant. I've got it in mine too. Could be left over assembly lube, a little oil leaking past the water pump, contaminates from the atmosphere.... hard to tell. As long as your crankcase oil isn't turning white and that crap in the overflow tank doesn't increase in size rapidly... I think it's fine. My roomate's 636 does it too.

Almost everyone I've talked to has noticed this stuff. If it were a blown head gasket, your going to have coolant in your oil, not oil in your coolant. I've got it in mine too. Could be left over assembly lube, a little oil leaking past the water pump, contaminates from the atmosphere.... hard to tell. As long as your crankcase oil isn't turning white and that crap in the overflow tank doesn't increase in size rapidly... I think it's fine. My roomate's 636 does it too.
I drained it out 2 days ago, filled it up, went for a ride yesterday, now I got about 4-5 mm sitting at the bottom of the tank, not much. Ive only noticed recently, like within the past 2-3 weeks. Its also been a lot colder this month than last.

I'll see if cleaning out the tank will make a difference, if not then I guess I can take the water pump off and inspect the seal, but I really dont want to do that.

That's pretty quick I guess. Get some of it out and send it to blackstone. Everyone is wondering what the hell this stuff is. Could be a simple as aluminum oxide, or as bad as leaking bushing on the water pump. Only one way to be sure.

I switched to engine ice and haven noticed this again so you might wanna concider a better coolant

Hmmmm, when I've blown a seal and had oil and coolant mix it wasn't that color

http://www.gixxer.com/forums/attachment.php?attachmentid=22947&stc=1&d=1159665698



It was more of a grey-ish color closer to this

http://www.groupelacasse.com/gl_admin/images/P22.jpg

If you keep flushing your antifreeze and running it all this time.. have you had to fill your oil at all?? notice any oil level difference? all the problems ive had its been antifreeze going into the oil.. never oil into the antifreeze.. and I dont remember seein it posted, but when youdrain your system and let it stand -does it separate too? Or is it just happening in the resv.

If you keep flushing your antifreeze and running it all this time.. have you had to fill your oil at all?? notice any oil level difference? all the problems ive had its been antifreeze going into the oil.. never oil into the antifreeze.. and I dont remember seein it posted, but when youdrain your system and let it stand -does it separate too? Or is it just happening in the resv.
I havent flushed the coolant yet, just the reserve tank. Im a bit strapped for cash so first Im going to clean out the reserve tank and then see what happens. Oil hasnt dropped one bit, its the same amount Ive had in it since the last oil change. I looked in my radiator and it appears fine, nice and green like new coolant should look like, its only in the reserve that this is happening. If you mixing it together, it'll mix, but after a while it will eventually settle to the bottom.

your fine...it's the coolant...everybike I've seen has that stuff at the bottom of the reservoir bottle...

yeah I wouldnt worry too much about it, might just be picking up leftovers and not reacting well... Dont think it will hurt anything.

Well an update, went back to the place where I got it from and asked the dude if he knew anything about it. Apparently theres an additive in it that makes it so that it doesnt react very well with any other type of coolant, and the curdling is the result.

Well, Im gonna bump this thread.

The shit is still in the tank, and I know for sure its not oil, and Ive narrowed it down to aluminum. Talking with a mechanic thats been in the trade for a long time, and has worked on everything from cars to rigs, he figures that there are air pockets in the cooling system thats allowing some areas to have little contact with the coolant, and thus, the aluminum is being corroded.

Two questions, what could be causing this corrosion (antifreeze is aluminum safe) and how can I stop it from continuing? I thought maybe Water Wetter, it'll "break down" the coolant molecules and allow them to contact the block better.

Oh, I also found this (http://www.yet2.com/app/insight/techofweek/26288?sid=200), seems like a good read related to this subject.

was the coolant premixed with distilled water? or maybe you should try an entirely different brand of coolant

The first coolant I used was premixed, the second batch I used I premixed myself with distilled water.