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    70 HP Stinger Mean Machine ignition issues

    I have a 70 HP big orange Stinger mean machine this motor runs great until the motor gets good and warm like when your all the way on the other end of the lake.When I shut it off to use my trolling motor and try to restart the motor and then NO SPARK ON ALL CYLENDERS .So now after being towed...
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    How do I get more HP from my Merc 650

    I have heard that on some outboards you can use bigger carbs to increase hp. So I thought if I put bigger carbs on my Merc 650 Keikhaufer I could increase the hp to 80 or 90 hp. In my last post I was informed that a Merc 80 or even a 90 hp uses the same carbs as my 650.So is there any way to...
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    Bigger carbs for my 65hp Keikhaufer

    By the way I am new to the forum. I have an old 1967 - 68 Merc keikhaufer 65 hp. Can I up the HP by putting bigger carbs, say 90 hp carbs on my Merc and then use a bigger prop to get more speed? My Starcraft currently does 31 mph.I figure bigger carbs would just get me up to speed quicker so a...
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