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SX250Z Code Indication - Carbon Build up

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  • SX250Z Code Indication - Carbon Build up

    Code indication on wink & blink – the code comes up 33 which is ignition timing is being slightly corrected (when stating a cold engine).
    So I have that code but what needs to be done to fix this problem.

    I am getting a lot of carbon build up, as I ***** at slow speed for 5 hours in the morning and then make a short run back to the dock and then do the same thing in the afternoon.
    The water has been about 45 to 53 degrees on top so I don’t know if the engines are getting hot enough to clean out some of the carbon build up. I do use Yamaha Ring Free and have started to clean the 02 sensor each year after replacing one.

  • #2
    Check with your local dealers to see if they have tried changing thermostats or anything to account for the conditions in that area.
    Regards
    Boats.net
    Yamaha Outboard Parts

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