1200 xlt Yamaha waverunner will not turn off - Yamaha Boating

SOURCE: Overheating YAMAHA XLT 1200 jet ski

you may have something clogged in a water passage but more than likley u have a bad sensor the sensor is located on the main exhuast if you go on the right side of the ski and look in the engine compartment it will be located at 9 oclock u will see it sticking out of the exhuast with one wire comming out after u run the ski and the buzzer goes off pull the seat and see if the engine is really hot if u can not touch it will be hot but it has to be very hot for the sensor to pick it up if u can touch the motor and exhuast it is a bad sensor

SOURCE: how do we start a yamaha 1998 xl 1200 wave runner

first put a new battery in it. then put your lanyard in the handle bar clip push the start button make sure that you have a life jacket on when your in the water and make sure that u attach the lanyard to your wrist or life jacket

SOURCE: yamaha waverunner excessive smoke

White smoke means coolant in the combustion chamber. Most likely a blown head gasket. You will have to tear the engine apart to be sure.

SOURCE: Waverunner will not start

Check the fuses under the front in a round cover, 1 fuse is for the starter,but the cover must be on after checking the fuses.

SOURCE: I have a 2002 yamaha waverunner xlt 1200. it will

hate to break it to you. carbs need to be rebuilt. the new fuel doesnt bode well for the carbs, clogs a really small filter and jets in the carbs
just had it done for the second time for a cost of $550/each time