2003-2005 Suzuki LT-A500F Service Manual, Page 204Get this manual
COOLING AND LUBRICATION SYSTEM
RADIATOR CAP INSPECTION
Remove the radiator cap lid Fit the cap to the radiator cap tester Build up pressure slowly by operating the testerMake sure that the pressure build-up stops at 95125 kPa (0.951.25 kgfcm, 13.517.8 psi) and that, with the tester held standstill, the cap is capable of holding that pressure for at least 10 seconds Replace the cap if it is found not to satisfy either of these two requirementsRadiator cap valve opening pressure Standard: 95 125 kPa (0.95 1.25 kgfcm2, 13.5 17.8 psi)