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  1. #1
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    Yamaha Over Revolution Control

    For those of you that have run your motor into the RPM range where the subject control takes place, what are you seeing, feeling, hearing, smelling, etc.?

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    #2
    I haven't ran my 4.2 SHO to the rev limit, but my previous rig had an F150 that I hit the limit on a few times. Nothing dramatic occurred, It lost a bit of power and rpms dropped. I suspect the ECM dropped out a cylinder or two.
    Allison XB-21 ProSport
    Yamaha 250 SHO
    Croxton Razor 4XL

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    #3
    Quote Originally Posted by PSM207 View Post
    I haven't ran my 4.2 SHO to the rev limit, but my previous rig had an F150 that I hit the limit on a few times. Nothing dramatic occurred, It lost a bit of power and rpms dropped. I suspect the ECM dropped out a cylinder or two.
    But it was noticeable correct?

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    #4
    Quote Originally Posted by yam911 View Post
    But it was noticeable correct?
    Yes it was noticable, but not drastic.
    Allison XB-21 ProSport
    Yamaha 250 SHO
    Croxton Razor 4XL

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    #5
    Thanks.

    In another forum a guy said it could not be noticed. I suspect he was talking about a motor that uses an electronic throttle valve to limit RPMs versus a model that misfires cylinders.