17. IGNITION SYSTEM ATV 300/250 PERFORMANCE TEST Ignition Coil CDI Tester Test the performance with a ignition unit tester. · Operate the ignition unit tester by following the manufacturer`s instructions. · Use the special connector to connect the ignition unit. If the spark is weak, inspect the spark plug Spark Plug CDI Unit and CDI unit. If both of them are normal, replace the ignition coil with a new one. PULSER COIL INSPECTION Remove the front fender. (Refer to the chapter 2) Disconnect the pulser coil wire coupler and measure the resistance between the blue/ yellow and green/white wire terminals. Resistance: 105110 /20C Refer to the "A.C. GENERATOR/FLYWHEEL" section in the chapter 16 to remove or install. 17-7