2006-2008 Yamaha RS, Vector, Rage Factory Service Manual, Page 35Get this manual

2006-2008 Yamaha RS, Vector, Rage Factory Service Manual, Page 35

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COMPRESSION PRESSURE MEASUREMENT ENGINE OIL LEVEL INSPECTION
The difference in compression pressure between cylinders should not exceed 100 kPa (1 kgcm2, 14.2 psi)6 Install: Spark plug Spark plu