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  1. 01-13-2019, 11:21 AM #1
    AnglerMike
    AnglerMike is offline
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    Yamaha F115 4 stroke

    I've got this motor on a 2009 Skeeter SX180. I'm only running 43-44mph.at about 5400rpm What can I do to get the most out of this motor? I've installed a 4" JP I'd like to be 50-55mph?what can I do?
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  2. yam911
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    #2 01-13-2019, 01:34 PM
    Prop the motor so that it can reach ~ 6000 RPM with the boat loaded when the motor is wide open throttle with the motor trimmed up only to the point of best efficiency and no further.

    Now what particular propeller will provide the best WOT speed will be anyone's best guess. I don't see you getting 50+ MPH out of the boat however.
    Last edited by yam911; 01-13-2019 at 01:40 PM.
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  3. yam911
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    #3 01-13-2019, 01:39 PM
    Brand new at a very light weight in cooler temperatures it only got to 47 MPH at WOT.

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  4. Tromanoski
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    #4 01-13-2019, 09:07 PM
    According to the chart it looks like you are at about the correct speed running 5400 rpm.
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