SPARK PLUG REMOVAL/INSTALLATION [MZI-3.7]
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1. Disconnect the negative battery cable.
2. Remove the engine cover. (See ENGINE COVER REMOVAL/INSTALLATION [MZI-3.7].)
3. Remove the dynamic chamber. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZI-3.7].)
4. Remove the ignition coils. (See IGNITION COIL REMOVAL/INSTALLATION [MZI-3.7].)
5. Remove the spark plugs using a plug-wrench.
6. Install in the reverse order of removal.