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  1. Z

    New motor is hard to start

    Hi All,<br /><br />I bought a 2003 Merc 90 classic. I had trouble getting it running on the weekend. It seemed starved for gas. When I squees the prim ball I can hear air whistling through the vent on the gas tank. The ball never really gets hard. Any suggestions?<br /><br />thanks.
  2. Z

    Outboard Security question

    Hi all,<br /><br />I have just bought a 2003 Mercury 90 and I'm wondering what others do to secure their outboards motors from being stolen? Maybe I'm being a little parinoid, but.... my boat sits on my cottage lot out in the open. I have it chained to the trailer, but bolt cutters would take...
  3. Z

    What's it worth

    I have a 1975 Mercury 850 Thunderbolt with 1 cylinder with zero compression. I have bough a new Merc 90. What should I ask for the old Merc? Also, I have hydrolics that are about 3 years old that were used for the 1975 Merc.<br /><br />Thanks
  4. Z

    zero compression

    I have my 1975 merc 850 tested and one of the Cylinders has zero compression. The shop is telling me $3000 for a power head rebuild. Any comments?
  5. Z

    What is going on here

    I have posted some of this already, but have some new info.<br /><br />Here is whats happening. (Keep in mind that I'm brand new to this).<br /><br />I have a 18' Doral runabout (http://www.cronkwright.com/HPIM0990.JPG) with a Mercury thunderbolt 850 (http://www.cronkwright.com/HPIM0991.JPG) and...
  6. Z

    Prop Question

    Hi All,<br /><br />I've been trying to gather some info about my boat; <br /><br />I want to know what the specs of my prop are, but there are no markings on it. Can I measure it and if so, how?<br /><br />Thanks in advance.
  7. Z

    Info on a 1975ish Mercury Thunderbolt 850

    Hi,<br /><br />I'm must wondering in anyone would know of the "specs" of this motor. <br /><br />thanks.
  8. Z

    Boat size vs motor size

    Hi All,<br /><br />I'm brand new to boating so I'm pretty green. I have a 18' 1975 Doral Runabout (around 2500 lbs or so) with a Mercury Thunderbolt 850. It runs great but....<br /><br />I'm wondering if the 850 is a little under power for the size of the boat. It takes to boat around 5 mins to...
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