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'57 3hp Johnson operating RPM
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<blockquote data-quote="airshot" data-source="post: 504566" data-attributes="member: 1183"><p>Idle speed should get down to 600 rpm or in that neighborhood. Had one many years back, would idle down so slow you could almost hear each cylinder fire. I don't know what wot rpm is, but it is much higher than 2450 !!</p><p>I would start with a good carb rebuild, you will end up there anyway even if you find another issue. Get a kit ( factory) so you have the new gaskets and needle and seat. No since doing half the job....</p></blockquote><p></p>
[QUOTE="airshot, post: 504566, member: 1183"] Idle speed should get down to 600 rpm or in that neighborhood. Had one many years back, would idle down so slow you could almost hear each cylinder fire. I don't know what wot rpm is, but it is much higher than 2450 !! I would start with a good carb rebuild, you will end up there anyway even if you find another issue. Get a kit ( factory) so you have the new gaskets and needle and seat. No since doing half the job.... [/QUOTE]
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'57 3hp Johnson operating RPM
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