i took the cap off the oil tank on my ds650 and it seems to have a greenush yellowish tint in the oil. what could cause this? and i also keep hearing a weird grinding/spining sound on the left side. and ive noticed that my fan is always going. i need help guys

 

Coolant!
Do you have any seepage out of your weep hole? It's supposed to come out there long before it gets inside of the crankcase.

 

whats a weep hole?

 

you need to buy a manual or bring it in to get fixed ..