Why would oil disappear?

[Drinknthink]

I have no leaks on my bike, but all the oil that was in it it somehow disappeared. I've never put oil in it since I bought it, and didn't need it until now. It has no leaks, so why would the oil disappear. Could the PO have put in car oil and it burned off, or what. Any thoughts?

[05RedKat600]

Never put oil in it....how many miles is that? Did you ever check the sight glass on the side?

[Drinknthink]

Yeah, it was full when I bought it and never got low until I rode it all summer this year. And Ive put about 4,000 miles on it this summer. Any thoughts?

[05RedKat600]

Yeah, it was full when I bought it and never got low until I rode it all summer this year. And Ive put about 4,000 miles on it this summer. Any thoughts?

Yeah, you've burned it off. Should change it now according to the manual. Also, it may have come out the breather tube as a mist that is connected to your airbox.

It's normal to use oil, especially on an oil cooled bike. The oil tends to get really hot and thin, and gets eaten easily. Best to keep an eye on it, especially with that nice handy sight glass on the side.

[cintidude04]

Oil doesn't 'disappear', but yes I agreee it has burned off and I also think you should keep up with oil changes.

[flash007]

Beens your in the southern belt where temps reach the 100+ oil will disapate more rapidly than than cooler climates. running 4k on the oil doesnt help as the manuall states 3k mile intervals.

[Drinknthink]

Thanks guys.

[scottynoface]

The manual states 3k mile intervals because it was written in the eighties...just fyi...