2006-2008 Yamaha RS, Vector, Rage Factory Service Manual, Page 34Get this manual

2006-2008 Yamaha RS, Vector, Rage Factory Service Manual, Page 34

COMPRESSION PRESSURE MEASUREMENT INSP ADJ COMPRESSION PRESSURE MEASUREMENT NOTE: Insufficient compression pressure will result
Compression gauge Compression gauge: 90890-03081, YU-33223 Compression gauge adapter: 90890-04136, YU-33223-4 5Measure: Compression
pressure Above the maximum pressure Inspect the cylinder head, valve surfaces, and piston crown for carbon depositsBelow
the minimum pressure Squirt few drops of oil into the affected cylinder and measure againRefer to the following tableCompression