I recently bought an 04 yz450. As soon as I got it I changed the oil and filter, replaced the stock air filter with a K&N and took it out for a weekend ride. It performed good and I had no problems (except some hard starting on cold mornings). After I got home I changed the oil again and checked it.. it didnt register on the stick (idled it for a good 4 mins). I added a little more and it registered high but in the range. Took it for a 20 min ride and it ran fine. Parked it for a few hours then fired it up again and got about 500 feet before it died. I started it after what seemed like 30 kicks and drove it home where it died again and then wouldnt start. First thing I did was check the oil which was just about coming out of the dip stick hole. Changed the oil again thinking maybe I did something wrong.. still won't run. So I check the spark and sure enough there was none. I went through the testing for the stator coils and the ignition coil. While I did this I found that the wire for the neutral sensor was melted and had broken, so I crimp connected that back together after testing that too. After that all of the tests passed except for the ignition coil. I got a reading of 0.000 Ohms across where the connector goes (supposed to be .08-.1?) So I bought a used coil off Ebay for $30 and tried it.. same problem. Measured that one and got 0.000 Ohms as well. Could I have two bad coils.. a bad CDI box, or a bad meter? I will bring the coils to the local dealer tomorrow to have them check them out but I was wondering if any of you had any suggestions.