SOURCE: 2006 yamaha waverunner wont idle
what is it idle at? how much? remove your seat check air filter if is black oily remove it and see if that fixes your problem you may want to change your spark plugs as well # one cylinder may be starting to foul the new yamahas are the worst for fouling plugs use a cr8eb instead of the cr9eb the 8s are hotter and work better try those and let me know thank you
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: strong vibration 2004 yamaha xlt waverunner
Something was stuck to the intake obstructing flow.
When you shut it off it drifted away.
It is a good practive when in weedy or heavy debree areas to get clear shut the motor off count to 30 then restart and gradualy excelerate to make sure it is clear. used this method for ten years now and seems to work well for me.
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