MX-5 Miata Mazdaspeed L4-1.8L DOHC Turbo (2004)
Spark Plug: Service and Repair
SPARK PLUG REMOVAL/INSTALLATION
CAUTION: To avoid breaking the spark plug, be sure to fit the socket squarely over it.
1. Disconnect the high-tension lead.
2. Remove the spark plug.
3. Install in the reverse order of removal.
Tightening torque:
15 - 22 N.m {1.5 - 2.3 kgf.m, 11 - 16 ft.lbf}