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1967 Evinrude 18hp Fastwin low speed sputtering and missing
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<blockquote data-quote="SumDumGuy" data-source="post: 353957" data-attributes="member: 12459"><p>Were the ignition components changed at rebuild?</p><p>Ensure that the points are set correctly, test the coils and condensers.</p><p>If you have determined that one cylinder is not firing then the cheapest thing to do would be to start swapping ignition components.</p><p>Swap the plugs and see if the opposite cylinder fires. If no pop .... swap the coils , then the condensers, then the points.</p><p></p><p>I had the same thing just happen with a 53 15hp - top fired, bottom would not fire. I did the swap 'o' rama up to the point of the points. I figured the points were good as they had good continuity when closed. After swapping everything except the points the lower was still not firing. So, I ended up getting an old set of points I had hanging around and surfacing the contacts. I installed the points and cranked the motor. It was then very apparent that both cylinders were firing.</p></blockquote><p></p>
[QUOTE="SumDumGuy, post: 353957, member: 12459"] Were the ignition components changed at rebuild? Ensure that the points are set correctly, test the coils and condensers. If you have determined that one cylinder is not firing then the cheapest thing to do would be to start swapping ignition components. Swap the plugs and see if the opposite cylinder fires. If no pop .... swap the coils , then the condensers, then the points. I had the same thing just happen with a 53 15hp - top fired, bottom would not fire. I did the swap 'o' rama up to the point of the points. I figured the points were good as they had good continuity when closed. After swapping everything except the points the lower was still not firing. So, I ended up getting an old set of points I had hanging around and surfacing the contacts. I installed the points and cranked the motor. It was then very apparent that both cylinders were firing. [/QUOTE]
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1967 Evinrude 18hp Fastwin low speed sputtering and missing
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