18. IGNITION SYSTEM K-XCT 125i SERVICE INFORMATION GENERAL INSTRUCTIONS Some electrical components may be damaged if terminals or connectors are connected or disconnected while the ignition switch is "ON" and current is present. When servicing the ignition system, always follow the steps in the troubleshooting.. The ignition control module or ECU may be damaged if dropped. Also, if the connector is disconnected when current is flowing, the excessive voltage may damage the ignition control module or ECU. Always turn off the ignition switch before servicing. A faulty ignition system is often related to poor connections. Check those connections before proceeding. Make sure the battery is adequately charged. Using the starter motor with a weak battery results in a slower engine cranking speed as well as no spark at the spark plug. Use a spark plug of the correct heat range. Using spark plug with an incorrect heat range can damage the engine. SPECIFICATIONS Item Standard NGK CR7E Spark plug Spark plug gap 0.60.7mm Ignition timing TPS Ignition system ECU 18-2