2001-2005 Yamaha WaveRunner GP800R Factory Service Manual, Page 308Get this manual
E EJU00645a
Starting the engine
WARNING
Never start the engine or let it run for any length of time in an enclosed areaExhaust fumes contain carbon monoxide, colorless, odorless gas that may cause loss of consciousness and death within short timeAlways operate the watercraft in an open area1Launch the watercraft in water free from weeds and debris and at least 60 cm (2 ft) deep