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1975 Evinrdue 25hp
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<blockquote data-quote="wmk0002" data-source="post: 400074" data-attributes="member: 13975"><p>Are you judging the compression by the feel of it when you try to pull start or did you actually test it? It's possible it has great compression numbers, however, the cylinders may not be within 10-15% of each other. This would contribute to a rough idle. I'd warm it up, pull both plugs, ground the plug wires and do an actual compression test. </p><p></p><p>If this checks out, I'd then check the spark, then mess with the carb last.</p></blockquote><p></p>
[QUOTE="wmk0002, post: 400074, member: 13975"] Are you judging the compression by the feel of it when you try to pull start or did you actually test it? It's possible it has great compression numbers, however, the cylinders may not be within 10-15% of each other. This would contribute to a rough idle. I'd warm it up, pull both plugs, ground the plug wires and do an actual compression test. If this checks out, I'd then check the spark, then mess with the carb last. [/QUOTE]
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