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  1. #1
    Member
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    Jan 2013
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    ZX185c Which prop 23M or 25M ?

    Hello
    I have a 99 ZX185C with a Vmax 150 and I have a 23M and I am debating on switching to a 25M. I have had several people tell me I needed a 25m because their boat ran better but two different prop shops said a 23m was correct so now I am confused. lol If you have a ZX 185 could you please post your numbers and what prop you have ? Mine started out as a Twin Prop motor and someone has since switched the lower unit to a single prop if that matters. I had a guy tell me he bought his new off of the showroom floor and it had a 25M.
    Thank You
    Last edited by jlinmo226068; 02-23-2018 at 05:27 PM.

  2. Member
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    Sep 2012
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    Smiths Station, Alabama
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    #2
    I have a 1997 ZX185C and run a 25. Highest # is 62 GPS.

  3. Member
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    Jan 2013
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    #3
    Did you ever have a 23 or have you always had a 25 ?

  4. Banned
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    Aug 2011
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    Boerne & Three Rivers, Texas
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    #4
    2000 zx185 yami ox66 150, ran 62mph @ 5500 rpms with a 25m.


    question for you OP is what are your rpms?

  5. Member
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    #5
    5800 RPMs

  6. Banned
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    Aug 2011
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    Boerne & Three Rivers, Texas
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    #6
    You could turn a 25, whats your speed and do you want to go faster or what exactly?

  7. Member
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    Jan 2013
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    #7
    My speed is currently 55-56 and yes I am wanting to go faster. Granted I know my jackplate needs adjusted its just been too cold here to do that. Lol

  8. Member
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    Jan 2013
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    #8
    From what I have read it has a 2.0 gear ratio. I have been told I have alot of prop slip so I need to make a decision to either have the 23M reworked or trade it in and get a 25M the shop said it was approximately the same price either way what would you do?

  9. Member
    Join Date
    Jan 2005
    Location
    Red Oak Va.
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    10,597
    #9
    It can be worked for less than a new prop and if your buying a used 25M it might need work too.