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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...
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...
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...
