milky sight glass

[slantman]

any ideas what might be causing this?
the dealer said it might be gas, might have a faulty injector. anyway i have to take it back up there so they can check it out. because when i took it up there it looked clear after about 45 min it started to get kinda milky. damn the bike only has 6,000 miles on it. and its out of warranty when i stick my nose down in the oil filler it does smell kinda gassy, the dealer are always telling me its ok ride it, but he wanted me to leave it there he said there is something in there and wanted to know if i had a trailer because he did not want me to ride it.

[expat1970]

well if you had a faulty injector i would think that a FI light would come on to show fault.in my experience ,milky oil would lean more towards coolant leak(head gasket)how is your coolant level?.you can take a small sample of your oil and drop a bit on some paper towel.if any fuel in oil it will create a larger ring around oil drop and be slightly lighter in color. good luck just my .02

[hayazuki]

or just condensation...I'd change the oil and filter and watch it closely.

the very best information would just be to send off a sample, have it analyzed and you'll know exactly what's in it.

[slantman]

coolant level is fine. the deal said that if it was coolant that it would stay milky all the time, and when you tip the bike over to view the sight glass the oil looks fresh.

[hayazuki]

..condensation.

[kromdom]

or just condensation...I'd change the oil and filter and watch it closely

+100! this would be the quickest/simplest/cheapest way to "troubleshoot". However, as already pointed out, a LEAK is a common cause of "milky" oil

[Mr Brown]

Regardless of the cause, a milky sight glass is never good. The dealer is right about you not riding the bike. Some sort of contaminant is in your oil, either fuel or coolant, and your oil isn't able to do what it should. Bearings ride on a very thin film of oil, and if it's contaminated failure can result. Best to get it investigated before you do more damage.

[hayazuki]

lol, how's he gonna get it hot enough to evaporate the condensation that's forming on the sightglass without riding it??

if it was my bike, with the issue as described, i'd take it out and ride it hard, get it hot for at least an hour or longer and see if the moisture disappears

[Mr Brown]

lol, how's he gonna get it hot enough to evaporate the condensation that's forming on the sightglass without riding it??

if it was my bike, with the issue as described, i'd take it out and ride it hard, get it hot for at least an hour or longer and see if the moisture disappears

The problem with that is that if it's not condensation, you risk a major issue when you're done. I would rather drain the oil and examine it than ride it. Better safe than sorry.

[expat1970]

any ideas what might be causing this?
the dealer said it might be gas, might have a faulty injector. anyway i have to take it back up there so they can check it out. because when i took it up there it looked clear after about 45 min it started to get kinda milky. damn the bike only has 6,000 miles on it. and its out of warranty when i stick my nose down in the oil filler it does smell kinda gassy, the dealer are always telling me its ok ride it, but he wanted me to leave it there he said there is something in there and wanted to know if i had a trailer because he did not want me to ride it.

but he said after a 45 min ride?but i totally agree with oilchange/fiter first

[slantman]

yes i drove it about 25 miles to the dealer it looked clear and he said it looked fine but then we let it sit for about 45 min. and it started turn milky again.

[Blanca BusaLess]

What kind of oil is it to begin with ?
Many types of car motor oil have modifiers in them that will bubble up and then turn milky if used in a motorcycle .

Brother put penzoil in his ZZR600 and it looked like a chocolate shake after 100 miles.

[expat1970]

What kind of oil is it to begin with ?
Many types of car motor oil have modifiers in them that will bubble up and then turn milky if used in a motorcycle .

Brother put penzoil in his ZZR600 and it looked like a chocolate shake after 100 miles.

thats a good point,there are a lot of peaple out there giving bad advise on thing they know nothing about

[CCbusa05]

lol, how's he gonna get it hot enough to evaporate the condensation that's forming on the sightglass without riding it??

if it was my bike, with the issue as described, i'd take it out and ride it hard, get it hot for at least an hour or longer and see if the moisture disappears

+1 !!!

[slantman]

i run Mobil 1 Racing 4T

[hayazuki]

is your oil foamy?
pull the fill cap, is it slimy, like congealed milk on the bottom?

or do you just have a foggy or whitish area on a part of you sight glass?

water is a normal product of combustion to the tune of about 3 quarts of water in the form of water vapor produced per every gallon of gas burned.

it's the normal chemical reaction of burning hydrocarbons. nearly all of the water vapor leaves via the exhaust system but a very small amount will enter the crankcase the same way excess fuel does, by the rings. the water vapor normally evaporates due to the temperature of the engine and is vented from the crankcase through the crankcase vent.

if you don't get your engine hot enough to evaporate the water vapor it will condense on the coldest surface, aha, your sightglass, especially in cooler weather.

not saying this is whats happening in your situation but it's common during cool weather and or short rides.

hope you get it figured out and it's not an engine problem. while not impossible on a 6000 mile busa motor, i would guess it's just some condensation you're seeing, especially when you wrote the oil looked clean when you leaned the bike over. they're a pretty tough motor....

like i said earlier, you can always send a sample to be analyzed, it'll come back showing everything you need to know.