2003 2005 YFM45FAR, YFM450FAR Kodiak OEM Service Manual, Page 86Get this manual
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MEASURING THE COMPRESSION PRESSURE
Compression pressure (at sea level): Standard: 1,270 kPa (12.7 kgcm2, 181 psi) Minimum: 1,105 kPa (11.1 kgcm2, 158 psi) Maximum: 1,422 kPa (14.2 kgcm2, 202 psi