2008 Yamaha Motorsports Grizzly 450 Auto. 4x4 Special Edition Owners Manual - Page 122

Coolant reservoir capacity (up to the maximum level mark): 0.25 L (0.26 US qt) (0.22 Imp.qt) ECB00401 EBU23592 To change the coolant EWB01880 WARNING POTENTIAL HAZARD Removing the radiator cap when the engine and radiator are still hot. WHAT CAN HAPPEN You could be burned by hot fluid and steam blown out under pressure. HOW TO AVOID THE HAZARD Wait for the engine to cool before removing the radiator cap. Always place a thick rag over the cap. Allow any remaining pressure to escape before completely removing the cap. 1. Place the ATV on a level surface. 2. Remove panels E and F. (See page 8-9.) 3. Place a container under the engine, and then remove the coolant drain bolt. (Use a trough or a similar object as shown to prevent coolant from spilling on the footrest.) 8 CAUTION: G If coolant is not available, use distilled water or soft tap water instead. Do not use hard water or salt water since it is harmful to the engine. G If water has been used instead of coolant, replace it with coolant as soon as possible, otherwise the cooling system will not be protected against frost and corrosion. G If water has been added to the coolant, have a Yamaha dealer check the antifreeze content of the coolant as soon as possible, otherwise the effectiveness of the coolant will be reduced. NOTE: G The radiator fan is automatically switched on or off according to the coolant temperature in the radiator. G If the engine overheats, see page 8-61 for further instructions. 8-27