first thing u shuld try is look at your rpm gauge and crank the engine if you see the needle moving or flickering that means you are geting spark and the problem is fuel, Next if the needle does not move at all ,with a test light and ignition key in the on possition check if the is power on the black with orange wire on the ignition coil, if there is not power there look for a blown fuse if you cant find one get a wire and run it to the +side of the coil and try to start it, if it works that means you have a blown fuse somewhere, Next you can also try this. run a wire from ground, now you need somebody else to help you, your assistant sits in the cockpit looking at your tach and u simply tap the IG- terminal {located right next to the check conector} with the bear tip of the wire the is grounded, a a rate of 2 to 3 times per second the needle should move and you should get a spark. if the rpm gauge moves but you dont get a spark at the coil it means you have a bad coil if you do get the spark at the coil this means you have a bad ignitor. hope this helps