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mercury racing 575s

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Old 04-30-2003, 10:26 PM
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GAMEMAN
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Default mercury racing 575s

Has anyone been having any problems with these motors what kind of hours logged before rebuild.
 
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Old 05-01-2003, 08:07 AM
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Thumbs up Mercury 575's

I have about 60 hours on mine. I had to switch to a hotter spark plug to eliminate an idling problem. Other than using a lot of fuel over 4,000 rpm, they are great! If I had to do it over again, I would have chosen the 525's. They run almost as fast, use less fuel, cost a lot less, have closed cooling, and no blowers to maintain. I am still trying different props to get the max rpm and speed. By the way, the sound of these motors may be worth the price!
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