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    40hp Seahorse with Helicoils

    Some are probably familiar with my saga with an old beaten up 1967 Seahorse. I just replaced the coils, got spark and was excited to get going when the new plugs I ordered (JC6) with a kit did not fit. They were too small. And I had previously ordered some QL77JD4 plugs that also did not fit...
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    Two new coils bad? '67 40hp Seahorse

    Just got a rebuild kit for my coils. One original coil was bad and one good (Good coil tested 3200 ohms on secondary btw). When I tested the new coils, I got nothing on the secondary of either. I feel like I could be doing something wrong but I wanted to see if this happens before I send them...
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    Seahorse 40 won't throttle up

    Just took my Seahorse out for the first time and after doing minor PM's. It tried to come up to full throttle, but then just sat past idle. It sputtered a little, but what I would expect from an old 2 cycle. It ran fine for quite a while though at high idle. My first thought was the vacuum...
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    1967 Johnson 40 Seahorse Vacuum Switch question

    New to this forum. This is my first "real" boat. First outboard, so I am new to a lot of the parts and workings of these engines. So far I have done some basic PM's to the engine. But a lot of things are not working (Even though the engine fires right up and runs great). One of the...
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