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    Mercruiser 170 runs bad when hot - voltage regulator issue?

    So the boat starts and runs fine when it's cold, but after a while, it starts to miss and run very poorly. When this happens, if I then hit the trim (or something electrical), it will completely fall on it's face and lose power. But I noticed that it seems to run fine for a long time if it...
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    How to convert 7.5 hp to 9.8 - vroom vroom

    I have an '81 7.5 merc. How can I convert it to the output of the 9.8? I've heard you can swap the carb or perhaps re-jet the carb, but I haven't gotten a definitive answer. Has anybody done this? BTW, I'm a noob on here, so go easy on me!
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