I have an 02 raptor 660R that I bought last weekend and I notice there was no violent in the radiator so I put some in and went to start it and I took a few time for it to finally start and when I did the hose from the radiator to the water pump shot off and all the coolant drains out. I check te oil and there was coolant in the oil so I asked around and I was told I probably have a blow hea gasket. I have already had the water pump checked and thermostat and they are in perfect working order. Oh and when he engine strta to get hot it will start to smoke seems like it's coming from the radiaor but not sure. I why I need to know is how yo replace the head gasket!! Is there anything special I need to do or watch out for? A step by step would be awesome!