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Nikki carb secondary operation?

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Old 02-02-23, 06:54 PM
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Nikki carb secondary operation?

A simple question on a stripped Nikki, should you see the secondary butterfly open if you are running engine in neutral and just open the carb fully by hand? I am not sure that the vacuum is working an i am trying to stay away from mechanical secondary setup.
Old 02-03-23, 12:09 AM
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free revving the ending will not cause them to open. there's just not enough of a vacuum signal for them to open before they close. engine needs to be under a load. there's a thing called the bread tie trick where u wrap a small piece of wire a few times around the plunger shaft, and slide it up to the top. then go do some wot pulls. if they r working, u will see the wire has moved to the bottom.
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Old 02-03-23, 12:45 PM
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Michael,
Thanks, I will try that test. Seems like it should be easy to do, hope to see movement.
Regards, Marty
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