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    Tune UP Question on OMC 5.7 (Chevy 350)

    I've been noticing that my engine is not running as smoth as it was last year. When I go at full throtle and then slow down, it dies; when I try to restart the engine smells rich.<br />A tune up was performed 2 years ago (100 Hours ago)I pulled one spark plug and it looks good (I need to look at...
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    OMC Cobra Stern Drive Gear oil

    I just bought a 1993 Marlin with an OMC Cobra Stern Drive, I would like to replace the gear oil but I'm not sure what kind it takes.<br />I opened the lower gear case and it the oil seammed pretty burned (Black).
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