bike has no spark, any advice or tips tracing problem?

 

Is their no spark from the plug wire or the coil? Elim.the plug wires and think coil. Go from there. Are the wire(s) to the coil live? One should be hot when you turn the ign. switch on. Use an in-line test light if you keep the plug wires on and use a test light for the wire(s) going to the coil.