ok so i bought a 2008 kx 65 and the guy i bought it from told me it needed an oil change and i talked to multiple people and they said a full synthetic motor cycle oil i forgot the weights of the oil but it was what they told me to get anyways like 2 days later i was riding a little track in the woods and it blew up when i took the head off i drained the oil and it was like water with the color and thickness so i checked the anti freeze and it was fine so i thought maybe some of the gas got mixed in some how but it was the same color and level so anyways this was really long but im completely lost any help would be nice thank you and also does anyone know of a good forged piston for these bike