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  1. #1

    Help with a pair of 2013 kawasaki STX15F's

    2-2013 STX15F's both have the same issue & both have less than 25 hrs. The problem is eratic idle and the rpm will hang up around 3000 sometimes which may coming into a docking area dangerous & tricky. Here's what we've tried so far;
    KDS-No faults
    ISC valve's ok
    compression 200psi+
    cam timing is on
    valve clearance good
    tried new ecu & throttle body
    throttle cables ok
    smart steering tests good
    tried a new oil temp sensor, cause old one reads high, no change
    Kawi doesn't have the answer either

    Ideas anyone, would sure like to pull one out of the hat, Thanks

  2. #2

    Join Date
    May 2007
    Minneapolis MN
    I would just disable the smart steering system and see what happens. I didn't have the erratic idle but did have the high idle once in a while when coming into the dock. If your bars are turned at all and you let off the throttle completely, the ECU will take over and bump the engine speed a little. If I remember correctly, I removed the magnet or sensor that is attached with screws to the base of the helm assembly and used a cable tie to keep it from banging around.

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