Yamaha R1 Series 2015 Service Manual page 343

Table of Contents

Compression pressure (with oil applied into the

Higher than without oil

Same as without oil

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• Spark plugs

13 Nm (1.3 m·kgf, 9.4 ft·lbf)

Spark plug (new)

18 Nm (1.8 m·kgf, 13 ft·lbf)

• 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).

• Ignition coils

Refer to "CAMSHAFTS" on page 5-9.

• Air cut-off valve

Refer to "AIR INDUCTION SYSTEM" on

• Air filter case

Refer to "AIR FILTER CASE" on page 7-4.

Refer to "FUEL TANK" on page 7-1.

• Fuel tank cover

Refer to "GENERAL CHASSIS (2)" on page

• Rider seat

Refer to "GENERAL CHASSIS (1)" on page

Piston ring(s) wear or

Piston, valves, cylinder

head gasket possibly

ENGINE INSPECTION

Troubleshooting