7-4 COOLING AND LUBRICATION SYSTEM RADIATOR AND WATER HOSES RADIATOR REMOVAL • Remove the under cowlings. (8-5) • Drain the engine coolant. (2-17) • Remove the radiator assembly. (3-5) • Remove the reservoir tank 1, cooling fan 2 and bracket 3 from the radiator. E RADIATOR CAP INSPECTION L • Fit the cap 1 to the radiator cap tester 2. P • Build up pressure slowly by operating the tester. Make sure that the pressure build-up stops at 93 – 123 kPa (0.93 – 1.23 M 2 kgf/cm , 13.2 – 17.5 psi) and that, with the tester held stand- still, the cap is capable of holding that pressure for at least 10 A seconds. S • Replace the cap if it is found not to satisfy either of these two requirements. Radiator cap valve opening pressure Standard: 93 – 123 kPa 2 (0.93 – 1.23 kgf/cm , 13.2 – 17.5 psi) RADIATOR INSPECTION AND CLEANING • Road dirt or trash stuck on the fins must be removed. • Use of compressed air is recommended for this cleaning.