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    Overheating 7.4L Yamah I/O 1992 260 HRS

    New to Boating<br /><br />I try and run engine once a week for 10 minutes to charge the batteries and circulate the oil during the winter here in Washington. However, today after placing water muffs over the intakes on the out drive and starting the engine, no water was being expelled form the...
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