I have fire from the stator all the way to the cdi and every now and then i'll have a spark from the coil. However, 9 out of 10 times, nothing from the coil. Coil has checked out to be a good coil. Should i have fire coming back from the cdi to the coil? I assume i would, but not sure. Is there a way to check the cdi? Can it intermittently(sp) work? Or is it either good or bad? Thanks for any help.