2003 Suzuki LT-Z400 Factory Service Manual, Page 25Get this manual
PERIODIC MAINTENANCE
Install the radiator cap After up and cooling down the engine, add engine coolant until the level is between the upper and lower lines on coolant reservoirthe
the above procedure several times and make sure the radiator is filled with engine coolant to the line of the coolant reservoircoolant capacity 200 ml (1.3