I'm working on a 55 HP mariner tiller 1998 ? made in Japan that has no spark.I get a pulse on my LED test light from the orange trigger wire from the cdi that goes to the coil when i pull it over.I tried an old skidoo coil and got a spark but i tried 2 other used mariner coils and there was still no spark.If any one has the resistance measurments for the coil and CDI i would really apreciate it.Thanks Bill