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  1. #1

    My HO done let me dowm :(

    I went to take my last ride of the season and she wouldn't start right up. Prior, she'd been 100% reliable. After about a dozen or so cranks, she started, idled poorly for a few seconds, then died. Few cranks later, the same. Had to get another battery to run in parallel as mine was getting weak.

    Then I got it started and immediately revved it up to around 1500rpm. Was able to hold her there for a couple minutes - sounded perfect. Let off on the idle and she stalled. I was able to repeat this a couple more times before giving up.

    So, it starts hard and won't idle for more than a few seconds. If I catch it just right and rev it, it will run great. If it had a carb I'd say the idle circuit is plugged, but I know nothing about FI systems to know if the problem is even close.

    It is a 2006 FX-HO. No mods, purely stock. Fresh gas, always treated with the marine version of stabil. I'm hoping someone here has seen this before and can offer some advise. Kind of a bummer, but being a Murphy, I expect this kind of crap luck. lol!


    Thanks in advance!


  2. #2
    i will get all the rest i need when im dead corkycat's Avatar
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    change the plugs, sounds like you have a plug or 2 down

  3. #3
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    Sounds just like they act when the map sensor is unpluged

  4. #4
    volltrex's Avatar
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    Don't think the 06 has a specific map sensor. They have throttle & cam position sensors, also air temp, but no oxygen & knock sensors.

    I would change the plugs for a start & take it from there. Have seen water in the fuel cause these symptoms. Blocked injector/s? Also check the air bypass motor hoses are on, although this would only give you a rough idle.

  5. #5
    YoYamma's Avatar
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    Sounds like something minor, I'm sure you'll get it sorted out.
    Definitely try new set of plugs.
    How many hours on it, and how often do you use it?

  6. #6
    Plugs huh? Interesting. It gets about 25-30 hours a year - not a whole lot. She might have maybe 120 hours total. I will try some plugs - easy fix to try. Thanks!

  7. #7
    I'll bet it's the plugs,these HO's don't like it when the plugs aren't clean...had sluggish issues with my 2008 FXHO this spring, new plugs fixed everything..

  8. #8
    smacota1's Avatar
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    Quote Originally Posted by MurphsFXHO View Post
    Plugs huh? Interesting. It gets about 25-30 hours a year - not a whole lot. She might have maybe 120 hours total. I will try some plugs - easy fix to try. Thanks!
    +1 I normally go through two sets of plugs a season....these things love to eat them up...... "07 HO"

  9. #9
    abracadabra's Avatar
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    Quote Originally Posted by smacota1 View Post
    +1 I normally go through two sets of plugs a season....these things love to eat them up...... "07 HO"
    +1 I have an 09 232 limited twin HO and I had this same problem at 20 hours and thanks god it was just the plugs...

  10. #10
    volltrex's Avatar
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    Quote Originally Posted by smacota1 View Post
    +1 I normally go through two sets of plugs a season....these things love to eat them up...... "07 HO"
    Using higher octane fuel helps stop the plugs fouling.....also do not let motor idle for too long when cold.

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