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  1. #1
    gray's Avatar
    gray Guest

    Default "Enginewon't rev above 300

    "Enginewon't rev above 3000revs,and is eratic till it gets warm, then runs smooth but still at 3000revs, Seqence is : Switch on, all lights come on, 1st off engine check light then oil light, then temp. and rev lights go off together. Rev needle goes to 4000 then drops to zero.Engine starts ok is eratic till warm, buzzer goes off at 5 sec intervals and is stopped by pushing in the key. This problem is not coverd in the manual,"

  2. #2
    Join Date
    Sep 2006
    Location
    SF BAY AREA, CALI, USA
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    8,649

    Default u might want to plug it into S

    u might want to plug it into SDS
    HUMAN BUILT = HUMAN FIXED

    CERTIFIED MARINE TECHNICIAN

    WWW.JUSTINTIMEMARINE.COM

  3. #3
    gray's Avatar
    gray Guest

    Default "Thanks for that. Help, whats

    "Thanks for that. Help, whats SDS?"

  4. #4
    Join Date
    Sep 2006
    Location
    SF BAY AREA, CALI, USA
    Posts
    8,649

    Default Suzuki diagnosis system

    Suzuki
    diagnosis
    system
    HUMAN BUILT = HUMAN FIXED

    CERTIFIED MARINE TECHNICIAN

    WWW.JUSTINTIMEMARINE.COM

  5. #5
    gray's Avatar
    gray Guest

    Default "Thank you very much, i'll

    "Thank you very much, i'll get it down to a suzki agent.
    Many thanks, graham White"

  6. #6
    Join Date
    Sep 2006
    Location
    SF BAY AREA, CALI, USA
    Posts
    8,649

    Default let us know

    let us know
    HUMAN BUILT = HUMAN FIXED

    CERTIFIED MARINE TECHNICIAN

    WWW.JUSTINTIMEMARINE.COM

  7. #7
    gray's Avatar
    gray Guest

    Default "O.K, Booked in for next thur

    "O.K, Booked in for next thursday. 11th sept"

  8. #8
    Join Date
    Sep 2006
    Location
    SF BAY AREA, CALI, USA
    Posts
    8,649

    Default cool

    cool
    HUMAN BUILT = HUMAN FIXED

    CERTIFIED MARINE TECHNICIAN

    WWW.JUSTINTIMEMARINE.COM

  9. #9
    gray's Avatar
    gray Guest

    Default "SDS showed low oil pressure 3

    "SDS showed low oil pressure 3 times with a gap between of 121 hours and 134 hours. Changed the oil pressure switch. Problem remains. What do I try next? Can I attach an oil pressure gage, if so where and what should the pressure be with a warm engine?"

  10. #10
    Join Date
    Apr 2008
    Location
    Posts
    161

    Default "Just a little left field ques

    "Just a little left field question,What motor,boat and prop are you running ??"

  11. #11
    Join Date
    Oct 2008
    Location
    Tauranga New Zealand
    Posts
    3

    Default Sounds like the IAC valve(

    Sounds like the IAC valve(Idle Air Control)is not working properly.The IAC valve controls the amount of air going into the engine.When the motor is idling the throttle plates are completely shut und the only air that can get into the engine is through the IAC valve.It opens and shuts at varying speeds controlled by the computer.If its stuck open it will cause erratic cold running and fast idle when hot.Your mechanic should know that!!!
    The rev counter showing 4000rpm when you turn the key on means that the engine has done 400 hours running.

  12. #12
    gray's Avatar
    gray Guest

    Default "Many Thanks Shane, Ive got an

    "Many Thanks Shane, Ive got another mechanic lined up,i'll show him your message. Ta Graham"

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