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  1. #1
    Join Date
    May 2020
    Location
    Steamboat Springs, CO
    Posts
    160

    Default Random Engine die or stall out

    I was just wondering if anyone else has experienced this same situation. Went to Flaming Gorge the last 4 days. First day.....Cruze up canyon about 20 minutes at around 25 or so. Rans smooth as can be. Set up for surf session and filled everything up. Decided to test the wave before we started. We were cruising along for a few minutes and then all of a sudden the engine dies. We all looked at eachother like WTH was that. Figured it was a fluke, so our rider hopped in and we started to surf. Worked fine on her first pull and then she fell. Second pull as we got her up, died. Now I was concerned. Pulled her one more time, pulled her up slow and didn't just floor down the cruise control and she surfed for a few minutes and died.

    We all decided something was up and we needed to go back to the marina, tie up and start hitting google up. Drained and went back with no problems. After about a hr, and no ideas from google, we decided maybe it was the cruise control. We all went back on the lake, and filled up. I decided I would try it one more time with no surfer with cruise control before I started testing new options. No problems. Surfed first person....no problem.....second person no problem. It was like nothing happened at all. Surfed 3 more straight days maybe 6 hrs each day, no problems. Boat ran great for the whole trip.

    Just got back last night and thought I would see what peoples thoughts were. I have some thoughts about gas, partical caught in gas intake, computer cruise glitch. It was not overheating. Fluids were all good. Maybe fuel filter. I don't know.

    Any thoughts?

    I will just listen

    Thanks all....much appreciated.

    D
    2022 MAX
    Steamboat,CO

  2. #2
    Join Date
    Mar 2021
    Location
    South Georgia
    Posts
    1,379

    Default

    I am guessing no codes popped up on the screen? It does sound like it could be gas related. Change out your fuel filter/water dryer to be safe. Did it start right back up with no problems each time?

    Sent from my SM-G781V using Tapatalk
    2021 Moomba Makai
    Black Cherry Metal Flake & Fire Red
    Nibral OJ 15.5x15 Altitude/Wake prop w/1.76 trans v-drive
    Wet Sounds bow speakers & 10's on the Tower & ported sub

  3. #3
    Join Date
    May 2020
    Location
    Steamboat Springs, CO
    Posts
    160

    Default

    Quote Originally Posted by HFarr View Post
    I am guessing no codes popped up on the screen? It does sound like it could be gas related. Change out your fuel filter/water dryer to be safe. Did it start right back up with no problems each time?

    Sent from my SM-G781V using Tapatalk
    No codes...no problems starting up. I have new fule filter...always have one on hand....thats my first project.
    2022 MAX
    Steamboat,CO

  4. #4
    Join Date
    Jan 2021
    Location
    Columbus, Ohio
    Posts
    973

    Default

    Fuel related 100%.
    Water would be my first guess. Add a fuel treatment to the tank to help with water and fill up with fresh gas from a high volume station.
    2015 Moomba Mojo Surf Edition
    4,000lbs
    Manual Flow

  5. #5
    Join Date
    May 2018
    Posts
    4,550

    Default

    Did you accidently bump your kill switch with your right leg?

    I recall this being common/possible on the moombas.

    Also a good idea to exercise your killswitch contacts.


    Sent from my iPhone using Tapatalk
    2021 Supra SA 400
    2018 Supra SA 400 (SOLD)
    Michigan

  6. #6
    Join Date
    Feb 2018
    Location
    Boating on Lake Martin, AL
    Posts
    1,373

    Default

    Was going to say it sounds like maybe you tapped your kill switch with your knee or something. It is very easy to do and it’s so sensitive that even the slightest touch will activate the kill switch. Remember it is two method switch both with the push button and also with the lanyard clip.

    When I first got my Max I killed it like 3 or 4 times my first few outings before I realized what I was doing and hitting the kill switch by accident. I made mental note and changed my sitting position slightly to keep my right knee away from it.
    Last edited by haknslash; 07-13-2022 at 12:28 PM.
    2019 Moomba Max "MOOMBAE"
    Mods: Wakemakers upgrade + 500 lbs of lead
    2016 Yamaha AR192 - sold

  7. #7
    Join Date
    May 2010
    Location
    Salt Lake City, Utah
    Posts
    1,576

    Default

    Quote Originally Posted by larry_arizona View Post
    Did you accidently bump your kill switch with your right leg?

    I recall this being common/possible on the moombas.

    Also a good idea to exercise your killswitch contacts.


    Sent from my iPhone using Tapatalk
    This. Happend to me several times on the old boat. I actually had a hat hanging from the throttle and it would bump the kill switch when i would turn left and the seat would move over just enough to push the hat up against the kill switch. It was maddening trying to figure it out!
    Scott
    2021 Craz
    2007 Mobius LSV
    1997 Sea Ray 190

  8. #8
    Join Date
    Sep 2017
    Location
    Ft Gibson Lake OK
    Posts
    311

    Default

    Quote Originally Posted by Holdmybeer View Post
    Fuel related 100%.
    Water would be my first guess. Add a fuel treatment to the tank to help with water and fill up with fresh gas from a high volume station.
    Yep my exact thinking on this one as well.
    2021 Makai

  9. #9
    Join Date
    Mar 2010
    Posts
    150

    Default

    Does sound more like kill switch than fuel to me. Water in fuel usually shows up every time you put the engine under a load. I had a problem with the fuel pressure relay on my boat which presented similar to this but it doesn’t translate as I have a indmar assault 310 carb.
    Pat L
    2005 Outback
    Leonardtown, Maryland

  10. #10
    Join Date
    Mar 2020
    Posts
    110

    Default

    Not exactly the same but similar except when mine died I lost all electrical power, dead in the water. Turned out to be a relay not plugged all the way in somewhere near the engine
    2019 Moomba Makai
    400 Raptor
    650 lbs lead
    Wakemakers rear upgrade

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