1996 marlin powered by,1200cc harley davidson .. has no spark

I don't know anything about a Marlin. Matter of fact, I don't even know what it is but I know ignition systems. Get a test light or better yet, a DVOM (Digital volt ohm meter). Put the meters function switch in DC volts 50 volt range. Connect the black meter lead to a good ground, turn on the machine's ignition switch. Using the red meter lead or the test light, touch it to one side of the coil and then the other. You should have voltage on the coil. If you have voltage on both sides of the coil and you don't have a spark, you probably have a bad Hall effect sensor in the timer cavity of the engine. Turn the ignition switch off and take the wires off both ends of the coil. Put the meter's function switch in R X 1 scale. Touch one meter lead to each of the coil's primary winding terminals where the wires came off. You should read between 2 and 3 ohms. If not, the coil is bad. Now, find the "hot" wire by turning the ignition switch on and using the meter in the DC volts function to test for voltage. Connect the "hot" wire to one of the primary terminals of the coil. To the other, connect a plain piece of wire that has had the insulation stripped from each end. Turn the ignition switch on and momentarily ground the bare ended wire you connected to the coil. When you take the wire away from ground, breaking the circuit, you should see a spark at the plugs.

Good Luck
steve