No, definitely not. There is no measurable voltage to coil on a CDI system and you can damage things by trying to test stuff incorrectly. A CDI cannot be tested by most people. By this I mean you need a very exclusive CDI tester, There are probably just a handful in the world. Use the service manual to measure the resistance of parts that feed the CDI, in this case it is only the pickup coil, if they are good, CDI is bad.