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Thread: 310 ecu

  1. #1

    310 ecu

    Hello guys, i Have 310r with This problem , idle is perfect , after i pull trotle engine run as if is rich , This problem finisch when engine pass 4000 RPM , but ski make only 100 km/h Very low speed. Is possible This problem is ECU with bad map? ECU is stock. Thanks


  2. #2
    Check your spark plugs.

    Mine was doing basically the same (see the thread WOT studder)

    I checked the plugs and they were horific..

    I'm changing out my plugs this weekend. Hopefully that'll fix it. The consensus among people is that this is the symptom and fix.

  3. #3
    Mark Mark2007kawasaki's Avatar
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    Quote Originally Posted by samui View Post
    Hello guys, i Have 310r with This problem , idle is perfect , after i pull trotle engine run as if is rich , This problem finisch when engine pass 4000 RPM , but ski make only 100 km/h Very low speed. Is possible This problem is ECU with bad map? ECU is stock. Thanks
    Yes mine had the same symptoms..... changed the plugs and it has run perfect since installing new plugs at 46 hours.

  4. #4
    Gsmith88's Avatar
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    Seems like the more you idle around the faster the plugs foul. I always try keeping mine above 2k rpm. Just a theory though ..

  5. #5
    250s with 2 water boxes and no exhaust filter fouled out plugs every 25 hours or so, 300 plugs with exhaust filter and 1 water box lasted 100 + hrs, the 310 back to 2 water boxes are fouling plugs again and start hard ??????????

  6. #6
    My dealership mechanic told me he had only one word of advice to keep my 310 out of the shop, just put in new spark plugs.

  7. #7
    nicjak's Avatar
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    fouled plugs are caused by guys not blowing out water boxes, and possible manifold leaks which are common..the later can be fixed with composite gaskets, the earlier can easily be achieved in raising the front of the ski and giving a few quick blips of the throttle from what i sometimes see are guys to scared to give it blips because there dealer has told them just to idle..

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