Wen i aacelerate my jetski bogs down an sumtimes cuts out,cud carbs need rekiting or claening,an wat the best fuel 2 run on cheers.
Sounds like you might have a little water in your fuel system, check the fuel filter for water then clean carbs, dont forget to check the gas tank for anything sitting in the bottom.
SOURCE: 2004 gp1300r jetski 20 mins riding and overheating
pull out the cat temp sensor and check to see if its bent. if so then its definently your catalist, even if not bent chances are still good it has failed. you need to be sure which light is coming on. does it look like a tube with squigly lines going up?
SOURCE: Overheating sensor on Yamaha Jetski keeps going off
I just had this problem. Put a heat sensint temperature gun on it - one of those laser temperature reading devices that measures temp within 1/10th of a degree, then scan the entire engine. Since those readers can tell you the temp of a spot that is the size of a dime or less, you will most likely find the area under the sensor is hot. Withing 60 seconds you will solve the problem. Best to compare you ski side by side to another so you can see what the norm is. Scan every square inch around the sensor. Pull the exaughst manifold and clean it up if possible (if not, but a new one) There are often times small holes in the casing that get plugged that spray water on the inside of the manifold below the sensor.
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