2004-2007 Honda Aquatrax ARX1200N3/T3/T3D Factory Service Manual, Page 133Get this manual
FLUSHING AND STORAGE Connect garden hose to the water outlet joint and attach funnel into the hose endPlace container under the rear of the vehicle to catch the coolantDispose of used coolant according to local regulations
PILOT WATER HOLE
OUTLET JOINT
Hold the funnel approximately 130 cm (51 in) above the deck and pour liters of the coolant into the funnel to fill the engine and exhaust system The coolant should come out of the pilot water hole Remove the hose and funnel
COOLANT