A: First, be sure to start with a known good, fully charged battery. If you are confident that you have no spark, check for stored DTC’S (diagnostic trouble codes ) in your speedo head. If there is an error code, it may steer you in the right direction. If you can find what the ohms reading should be for the primary and secondary of your coil (without spending aprox $60 on the electrical manual for your bike); test your coil. You can often find this information on line, but sometimes have to read through a lot of forums before finding the correct info for your make and model. Another common reason for no spark, on your 2004, is bad crank position sensor.
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