Motorcycle Repair: i got a 1989 kawasaki kx 80 ,my anti freeze and oil is mixing, kawasaki kx 80, head gasket

Question
i have a kx 80 and my motor oil and anti freeze is mixing i replaced the head gasket, base gasket,side cover gaskets and its still mixing.i took the drain plug out from the bottom of the motor and my anti freeze will leak right out. i dont know whats wrong can u help me?

Answer
Hi Jesse,

Oil seal are worn or defective, or the cylinder or cylinder head may have a fracture.

Perform a cylinder compression test. Follow with a leak-down test.

Pressure test the cooling system.

Inspect the water pump seal and crank seals.

Respectfully,
Mark Shively