Boat motor trouble

Discussion in 'Fishing' started by KYBOY, Nov 2, 2018.

  1. KYBOY

    KYBOY 12 pointer

    Apr 21, 2005
    ok I’ve got a 9.9 evinrude(about a 78 ) it has a new carb, new fuel pump, new plugs.
    It’s starts fine, idles good but when you run it in gear under load it sputters and dies taking about 30 minutes to get it started again. When restarted it idles fine etc but then the same thing again when you put it under load..
    Any ideas???
  2. barney

    barney 12 pointer

    Oct 11, 2005
    Sounds like the high speed jet has a drug for sure.
  3. 120+

    120+ 12 pointer

    May seem like a dumb question but are you turning the choke off when you hit the gas?
    Dark Cloud likes this.
  4. Dark Cloud

    Dark Cloud 12 pointer

    Aug 14, 2009
    Lawrence Co.
    Sounds like it’s fluid in itself
  5. inchr48

    inchr48 10 pointer

    May 14, 2013
    NW Indiana
    Check your air intake. I had a mud wasp nest one time and at speed it would clog the air intake and bog out. Idle was fine.
  6. claynut69

    claynut69 6 pointer

    Nov 14, 2007
    pulaski, co
    Just had my Yamaha 9.9 in shop. It died after 1 hr of use and wouldn't start. Shop rebuilt carb which it needed but would not continue to run after. Found old dirt dabbers nets in vent line to carb. Cleaned and runs like new.
  7. Bee

    Bee 8 pointer

    Mar 14, 2005
    i have a evinrude 15 with similar year and about ten years ago it started to do and still does/did the same thing despite carb work, gas line changes, fuel tank changes, etc. I finally just let it sit cause I couldn't make it do right. Still sitting
  8. DH13

    DH13 12 pointer

    Jan 13, 2012
    Shelby county
    Water pump check water pump. Had one that done that. Idle try to run it it quit. Water pump impellors was wore out. Caused engine to over heat. Had very little water coming out of pee tube. New water pump it ran fine.
  9. Duster

    Duster 12 pointer

    Make sure your fuel tank is venting.
  10. Meatstick

    Meatstick 10 pointer

    Oct 25, 2013
    Washington County
    High side jet
    barney likes this.
  11. Feedman

    Feedman Cyber-Hunter

    May 28, 2003
    In the basement
    Do you have an inline fuel filter.
    rabbit dawg and barney like this.

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