How many hours to many on outboard?

Discussion in 'Outboards' started by sqdqo, Feb 25, 2007.

  1. sqdqo
    Joined: Jan 2007
    Posts: 8
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    Location: Mich

    sqdqo Junior Member

    How many hours are to many on a salty outboard without a rebuild?
     
  2. redtech
    Joined: Feb 2007
    Posts: 253
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    Location: suger pine, ca

    redtech Senior Member

    depending on how you treat it i've seen between 500 and 3500hrs
    don't over prop, good oil and a little decarbonizer every now and then will keep you going for a loooong time.
    my self i've repowered boats will 2500+ hrs without rebuilds that still ran strong
    my last last boat ran a fitch with 3100 hrs when i sold it (never rebuilt luckly)
     
  3. makulaf
    Joined: Mar 2007
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    Location: fla

    makulaf New Member

    you can check your compression. If it is way off from factory spec, or if the different cylinders are substantially different, chances are you need a rebuild or at least freshened up. you can also remove the plugs, get a bendable small tip flashlight and look inside the cylinders to see if you still have cross-hatching on the cylinder walls. If you see scoring on the walls instead, then time to rebuild. It is easier/better to pull the heads to examine the cylinders, but you will need to replace the gaskets if you do it this way.
     
  4. Verytricky
    Joined: Oct 2005
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    Location: London

    Verytricky Large Member

    Exactly how long is a piece of string?

    I know race tuned engines that need a rebuild after 1 hour!
    My dad still has his 80Hp outboard going some 15+ years later with 100's hours a year.

    It really depends on too many factors to give an answer, but basically if it is high performance and/or if you gunn it, it needs work quicker.
     

  5. markjisaacs
    Joined: May 2007
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    Location: st vincent

    markjisaacs Junior Member

    5000 hours

    I have a friend who ran twin 200hp yamahas commercially for over 5000 hours and they were never opened, infact they were still fine the day he sold the boat.
     
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