I have a REXY 50 with the minarelli horizontal ac engine. I have a problem with it not having any spark. It was working fine then it didn't have spark. I bought a new racing CDI, HIGH OUTPUT COIL, NEW STARTER AND NEW STARTER SOLENOID. I installed everything and checked for spark with the spark plug in the boot and grounding it to the engine case while cracking the starter and still no spark. Anyone have any clue what to check or what the problem could be? I don't know what to check and what the problem could be. Any help would be greatly appreciated. Thank you.