The vent hose coming from right side rear of the head that runs up to the black plastic head shield. If I'm correct its a over flow for the oil, I have rerouted it to leak out under my swing arm. Now to my question today we out in the trails and we see a little puddle of miky grey fluids. Sure enough it's coming outta that my rerouted line. What would cause the oil to become grey and milky, yet has zero smell of oil or coolant. Again all info would be great! I haven't drained any fluids yet but plan to tonight. Thanks for all responses!