1992-1998 Kawasaki PWC Jet Ski Service Repair Manual., Page 21Get this manual
Excessive Noise Every manufacturer designs stock exhaust system keep noise minimumA poorly maintained or modified exhaust system will produce excessive and disturbing noiseThis is form of air polution and is illegal in most statesAutomotive Replacement Parts When replacing fuel, electrical, and othe parts, check be sure they marine type and Coast Guard ApprovedAutomotive parts not made to the high standards of marine partsThe carburetors must NOT leak fuel; electrical equipment MUST be able to operate in gas fume enclosed without exploding; etcAutomotive parts could cause fire endangering the operator, passengers, and the craftThe part may look the same and even have similar number, but if it is not MARINE is not safe to use and will not pass Coast Guard inspection
Overloading Each personal watercraft is designed carry specific number of personsAttempting to board more passangers than the is designed carry, will upset weight distribution causing marked decrease in performance and possible loss of control2-5 BOATING ACCIDENT REPORTS