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  1. #1

    Default 2012 Moomba Mojo Seems to have serious sluggish issues during acceleration.... help

    This just started a few weeks ago and I don't know exactly what to think of it. Here is the only way I can describe it...

    As I am throttling, it seems that the prop is not engaging with the water.... The RPM goes up and you can hear the engine rev up, but I am not accelerating like I should, I am WAY behind. It is like either the prop shaft is slipping, the prop is slipping, or the gears are slipping. It is the only way to describe the feeling.

    I looked at the prop and it needs to be reconditioned thanks to a few bumps and tweaks to it so I am wondering if that bumps are creating too many air bubbles and the prop is not connecting.

    I am taking her to the dealer tomorrow but before I do I was wondering if anyone here has had this happen to them and know what it is.


  2. #2
    Join Date
    Jul 2008
    Snellville, GA & Lake Sinclair


    maybe from the "bumps and tweaks" you've knocked the key loose and your spinning the prop on the shaft?
    2016 Supra SA 450
    2015 Supra SG 450
    2012 Moomba Mojo
    2008 Moomba OBV

  3. #3
    Join Date
    Aug 2011


    The prop is causing cavatation(air bubbles) have it repaired..
    2002 Moomba Mobius LSV - Sold
    2006 Moomba Mobius LSV

  4. #4


    Quote Originally Posted by wolfeman131 View Post
    maybe from the "bumps and tweaks" you've knocked the key loose and your spinning the prop on the shaft?
    That's what Cindy said Drew.. Hope it's not the tranny...

  5. #5
    Join Date
    Jan 2008
    Tallahassee, FL


    Ouch. I would definitely check my fluid levels in my v-drive and tranny, check coupler bolts to the shaft, inspect the keyway. Shoot, just take it in. (I'd also throw my back up prop on and go for a ride though.)
    My Mom said I'm not allowed to get wet!
    2008 LSV
    2000 Outback LS (sold)
    Exile Tunes
    P5 Danielo Diamond 58"

  6. #6
    Join Date
    May 2009
    North End Lake Lanier GA


    That just doesn't sound right. I'd check transmission fluid, and stop running the boat. until you find something wrong. Other wise you might do some real damage.

    Boat had a 2year drive train warranty. Take her in.
    Malo <--- Means--Evil or Mean One. This explains a lot.
    2013 Mojo 2.5 Skylon Tower. Bestia < Beast >

  7. #7
    Join Date
    Mar 2003
    s.e. washington state


    Put your spare prop on and see if that makes a difference. I think cavitation.
    1998 Mobius
    310 HP PCM

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