PERIODIC MAINTENANCE AND MINOR REPAIR6-4265. Engine overheating EW000070WARNING@Do not remove the radiator cap when the engine and radiator are hot. Scalding hot fluid and steam may be blownout under pressure, which could cause serious injury. Open the radiator cap as follows. Wait until the engine hascooled. Remove the radiator cap stopper by removing the screw. Place a thick rag like a towel over the radiator capand slowly rotate the cap counterclockwise to the detent. This procedure allows any residual pressure to escape.When the hissing sound has stopped, press down on the cap while turning counterclockwise and remove it.@NOTE:@If it is difficult to get the recommended coolant, tap water can be temporarily used, provided that it is changed to the recom-mended coolant as soon as possible.@Wait until theengine has cooled.Check the coolant level in thereservoir tank and/or radiator.Level is OK.Level is low, check thecooling system for leakage.Noleakage.Leakage. Ask a Yamaha dealer to inspectand repair the cooling system.Add coolant. (See NOTE.)Restart the engine. If the engine overheats again, ask aYamaha dealer to inspect and repair the cooling system.