Hey guys... I'm fairley new to street bikes and have a question ...I just got a 92 zx6d for a song but it is mixing oil and water... my question here is are these kinda like a dirt bike in that when the water pump fails it can cause this? Or would it more likely be head/head gasket failure? I'm a car mechanic and plan to do this work myself, just trying to figure where I should start... thanks for any input. .