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Idle RPM's for Merc OB??
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<blockquote data-quote="turbotodd" data-source="post: 437076" data-attributes="member: 7376"><p>675 is the factory specification.</p><p></p><p>If it won't go to 700 without stalling, it has problems. Carbs, air leak, timing, synchronization issue, fuel quality issue, could be a million things causing it but it should easily go 700rpm or a little less without problem. I remember messing with them years ago and when set properly, they'll idle clear down to around 550-600 and stay running. They'd go lower but get iffy below about 500.</p><p></p><p>In water vs out of water doesn't make a huge difference if the carb's are set correctly. Maybe 25-50rpm at most.</p></blockquote><p></p>
[QUOTE="turbotodd, post: 437076, member: 7376"] 675 is the factory specification. If it won't go to 700 without stalling, it has problems. Carbs, air leak, timing, synchronization issue, fuel quality issue, could be a million things causing it but it should easily go 700rpm or a little less without problem. I remember messing with them years ago and when set properly, they'll idle clear down to around 550-600 and stay running. They'd go lower but get iffy below about 500. In water vs out of water doesn't make a huge difference if the carb's are set correctly. Maybe 25-50rpm at most. [/QUOTE]
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Idle RPM's for Merc OB??
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