Problem with my engine oil

My bike is a K5 gsxr 750 , I just checked the level of the engine oil and the window was all gunged up with a yellow creamy subtance. I un screwed the cap and the oil has turned into this creamy stuff like salad cream. What should i do?? and what does this mean? I haven't run it all winter and have just started pottering to the shops on it i haven't yet give it a blast. Its only got 6,000 miles on the clock.

Headgasket perhaps? Could be coolant mixing with oil. Check your coolant and see if its a dark color, like brown which would indicate it mixing with the oil and vise versa.

moisture condensation..either drain and replace it "there will still be some moisture in there regardless".... or "ride" the bike and it will burn off after about an hour or so...

do NOT ride it with milky oil!!! It my have gathered some moisture from condensation, but to become milky looking indicates quite a bit of moisture found its way into the crankcase. Change the oil. and go for a quick ride - check it again. Also, check your coolant level!!!

do NOT ride it with milky oil!!! It my have gathered some moisture from condensation, but to become milky looking indicates quite a bit of moisture found its way into the crankcase. Change the oil. and go for a quick ride - check it again. Also, check your coolant level!!! Ordinarily, I would agree with that, but with these bikes it really doesn't take much water at all to make the oil around the sight glass look milky colored since that's exactly where it tends to accumulate. It's fairly common, especially in colder climates and in the Winter if you do a lot of short trips. Dip a wire or coat hangar in your oil fill hole. If it comes out milky, you have a problem and a possible coolant leak. Otherwise, it's just a small amount of condensation and it won't hurt anything as long as you burn it off at some point.

Change your oil, fill it back up and take it for a short ride. Check it again.

Ordinarily, I would agree with that, but with these bikes it really doesn't take much water at all to make the oil around the sight glass look milky colored since that's exactly where it tends to accumulate. It's fairly common, especially in colder climates and in the Winter if you do a lot of short trips. Dip a wire or coat hangar in your oil fill hole. If it comes out milky, you have a problem and a possible coolant leak. Otherwise, it's just a small amount of condensation and it won't hurt anything as long as you burn it off at some point. I would have to agree with Tee

I it has sat all winter I'd change it anyway then go ride it.