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    Year of 200 hp Merc from Serial No. ?

    Mercury 200 serial # OC198715 Can someone tell me what year this motor is? (1987 ???)
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    Merc 200 water flow

    I am troubleshooting the cooling system on a 1987 Merc 200hp. My question: there is a hose coming from the thermostats and this goes to a tee fitting. One end of the tee goes to the telltale and the other appears to go back into the exhaust manifold (I have disconnected it momentarily and...
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    '88 200 Merc Possible Overheating

    I have a 200 Merc that I believe is overheating. The temp gauge is at the 3/4+ mark after only a little while (I just recently got the boat so I have not idea if it ever ran at a lower point). I am in Florida (it is about 90 deg. here) and I took a few temperature readings off the heads right...
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