2004-2005 660 Yamaha Rhino Factory Service Manual, Page 230Get this manual

2004-2005 660 Yamaha Rhino Factory Service Manual, Page 230

RADIATOR AND COOLANT RESERVOIR

CHECKING THE RADIATOR 1Check: radiator fins Obstruction CleanApply compressed air to the rear of the radiatorDamage Repair or replaceNOTE: Straighten any flattened fins with thin, flathead screwdriver2Check: radiator hoses Cracksdamage Replace
3Measure: radiator cap opening pressure Below the specified pressure Replace the radiator capRadiator cap opening pressure 107.9137.3 kPa (1.0791.373 kgcm2, 15.3519.53 psi)