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  1. #1
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    Sombody tell me about the OX66 225 Motors

    Looking at a boat with an ox66 and want to hear an opinion from Yamaha experts.

  2. Member
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    #2

    Re: Sombody tell me about the OX66 225 Motors (Bassman04)

    I've had mine for over a year now... solid motor. Loving it! Next question is.. which prop?



  3. Member esoxfly's Avatar
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    #3

    Re: Sombody tell me about the OX66 225 Motors (Bassman04)

    Give it a quick search on here, as it gets asked alot about OX66's. There's quite a bit of discussion on what to look out for, common maintenance issues and so on.

    Bottom line is they're awesome motors (I had one before it blew and I made the switch to a 4 stroke) but there's a couple of things you have to do to take care of them and keep them running right.




    Ranger 200C/F225 Sport

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    #4

    Re: Sombody tell me about the OX66 225 Motors (esoxfly)

    What should I look out for? and its a Yamaha prop soon yto be a merc if I buy it

  5. Member
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    #5

    Re: Sombody tell me about the OX66 225 Motors (Bassman04)

    I have a 99' ox66 225. Replaced the o2 sensor a few times and fuel pumps and still runs like the day I bought it.

  6. Member
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    #6

    Re: Sombody tell me about the OX66 225 Motors (kensafishin)

    I have a 99 200hp ox66. If it blows tomorrow, it has been a good running reliable engine. I have replaced the low pressure fuel pumps and 02 sensor once. Running seafoam regularly in your fuel will prevent most of the common issues with them.



  7. Member
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    #7

    Re: Sombody tell me about the OX66 225 Motors (desotorad)

    I've had mine for over 3 years and 250 hrs and it's a great motor. They have a few maintenance quirks like the O2 sensor, VST filter, and 3 low pressure fuel pumps. But, once you get a little basic info on them, each are easy to diagnose and fix. The OX66 motors are reliable and strong running motors.

    Keep them decarb'd and use a synthetic or synthetic blend oil and you will almost eliminate any O2 sensor or plug issues.

    Each spring, I do all of my annual maintenance. It gets new plugs, O2 sensor cleaning, 10 micron fuel filter, new lower unit gear lube, grease all of the fittings, and spray a coat of CorrosionX under the cowling. I use Pennzoil synthetic blend oil. Since dropping Yamalube, my plugs look almost new after a year of use (75-100 hrs) and my O2 sensor looks good too.

    Just don't run WOT everywhere and they aren't too bad on gas. I usually cruise 3500-4000 rpm and it run 5600 rpm WOT. The power is excellent. My holeshot is great. I am on plane within a boat length or 2 and it will throw you (or wife) out of the boat if you aren't holding on.

    With ANY used motor, get is looked at by a reputable mechanic. Especially a compression check, etc. Even though they are great motors, with improper or no maintenance, or abuse, they will suffer.


    2002 Pathfinder 2400V
    2002 Yamaha 225 OX66

  8. Louisiana Bass Club Moderator
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    #8

    Re: Sombody tell me about the OX66 225 Motors (Bassman04)

    I had a 99-225 Ox66 and besides the O2 sensor and plugs the motor never had a wrench on it in the 5 yrs i had it.

    JOHN202

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    #9

    Re: Sombody tell me about the OX66 225 Motors (JOHN202)

    They may not get the best fuel mileage but they are about as reliable as a tank.

  10. Member
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    #10

    Re: Sombody tell me about the OX66 225 Motors (shortcast)

    My motor was completely submerged(sunk) in saltwater and still runs like a champ! Just the simple maintenence that was mentioned above is key. It does enjoy gulping fuel and oil though!

    1999 2200v Pathfinder w/ dual station Tower.
    2001 225 Yamaha Vmax ox66

  11. Member
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    #11

    Re: Sombody tell me about the OX66 225 Motors (MeanGreenPathfinder22v)

    how much fuel and oil is normal?

  12. Member esoxfly's Avatar
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    #12

    Re: Sombody tell me about the OX66 225 Motors (Bassman04)

    <TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Bassman04 &raquo;</TD></TR><TR><TD CLASS="quote">how much fuel and oil is normal?</TD></TR></TABLE>

    That's a relative term. It all depends on how your run the motor, size of the boat, the water you run, even the temp outside. When I had mine, pushing a heavy 20' 620 hull through the constant chop (drinks more fuel than flat water) of Lake St. Clair and me driving it fairly conservatively with a 50 gallon tank, I'd go through a half tank in two or three outtings. Oil too. It was last year, and I never really thought about it, but I'd go through a gallon of oil maybe every four or five outtings.

    What I have noticed is the comparison between that motor and my four stroke now, but we're not talking about four strokes here....

    Even last year though at $4.40 a gallon, it never kept me from fishing. Owning a big glass boat with a big honkin' motor, that's just part of it.




    Ranger 200C/F225 Sport

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    #13

    Re: Sombody tell me about the OX66 225 Motors (esoxfly)

    Love the motor...only downside is it loves the gas and oil. As mentioned, just some little maintanance and it will last a long time. However, if you are looking into buying something like that, gas and oil consumption is the least of your concerns...IMO.

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