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SportsBoat_F5K12.book  Page 139  Monday, July 4, 2022  11:40 AM



                        Trouble recovery


                          TROUBLE            POSSIBLE CAUSE                 REMEDY          PAGE
                         Boat speed   Cavitation   Jet intake  clogged  Clean               140
                         too slow or   Engine overheat*  Jet intake clogged   Clean         140
                         loses power
                                                   Cooling system   Clean                   105
                                                   clogged
                                     Fuel filter   Clogged          Have serviced by Yamaha   —
                                                                    Boat Dealer
                                     Spark plug    Fouled or defective   Have serviced by Yamaha   —
                                                                    Boat Dealer
                                                   Incorrect heat range   Have serviced by Yamaha   —
                                                                    Boat Dealer
                                                   Gap incorrect    Have serviced by Yamaha   —
                                                                    Boat Dealer
                                     Fuel          Stale or contaminat-  Have serviced by Yamaha   —
                                                   ed               Boat Dealer
                         *Engine speed will be limited to 3500 rpm.









































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