2005-2009 Kawasaki Brute Force 650/KVF 650 4x4 Service Manual, Page 96Get this manual
COOLING SYSTEM 4-9 Coolant
Pressure Testing Remove the front fender (see Front Fender Removal in Frame chapter) Remove the radiator cap, and install cooling system pressure tester [A] on the radiator filler neck
OWet the cap sealing surfaces with water or coolant to prevent pressure leakage Build up pressure in the system carefully until the pressure reaches 123 kPa (1.25 kgfcm2, 18 psi)