Yamaha R1 Series 2015 Service Manual page 363

Spark plug
13 Nm (1.3 m·kgf, 9.4 ft·lbf)
Spark plug (new)
18 Nm (1.8 m·kgf, 13 ft·lbf)
TIP
• Before installing the spark plug, clean the
spark plug and gasket surface.
• If the spark plug is a new one, tighten it to 18
Nm (1.8 m·kgf, 13 ft·lbf).
• Install the ignition coils "1" in the direction
shown in the illustration.
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CAMSHAFTS