2001-2005 Yamaha WaveRunner GP800R Factory Service Manual, Page 281Get this manual
E EJU00354
Cooling water pilot outlet
This watercraft is equipped with cooling water pilot outletsWhen the engine is running, cooling water is circulated in the engine, and then it is discharged from the pilot outletsTo check for proper operation of the cooling system, check that water is being discharged from the pilot outletsIf water is not being discharged from the outlets, cooling water may not be circulating in the engineWhen this occurs, stop the engine and check for the cause(See pages 2-13 and 5-4 for further instructions NOTE: If the cooling water passages are dry, it will take about 20 seconds for the water to reach the outlets after the engine is started