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    Water coming out exhaust manifold (thermostatstuck open?)

    Hi, <br /><br />Yesterday, I noticed water sputtering out of the exhaust manifold on my 250hp OX66 right after I started the engine. It seemed to stop after I had run the boat for a short while. <br /><br />I'm guessing, based on what I've read in other posts about thermostats being stuck...
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    VST Filter Replacement on 2001 OX66 250hp

    Hi,<br /><br />I've found some great threads on problems that people have experienced w/ the rpms dropping out abruptly on these engines, and it seems that the likely culprit is either the VST filter or the O2 sensor. My buddy is going to give me a hand cleaning the O2 sensor this weekend, but...
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    Engine control slipping on 2002 Yamaha 250 OX66 Saltwater Series

    Just purchased 2002 Contender 23 Open w/ the engine above, and pretty much anywhere above 3000 rpm, I have to hold the engine control arm in place or it slowly slips back to a lower rpm. I imagine this is a pretty easy adjustment, but I was hoping for some advice before I start tearing into the...
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