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To determine if the CDI box on your Xtreme Typhoon 125 ATV is bad, start by checking for any signs of electrical issues, such as no spark or inconsistent engine performance. You can also test the CDI box with a multimeter to check for proper voltage output or continuity. If other components like the ignition coil and spark plug are functioning correctly but the ATV still won't start, the CDI box may be faulty. Additionally, consider replacing it with a known working unit to see if the problem resolves.

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AnswerBot

2d ago

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