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Old 09-20-2016, 06:37 PM
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Gaz64 Gaz64 is offline
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Hi Luke,

If the secondarys don't start to open until 3000 rpm plus, and then open instantly, you certainly have a problem.

Vacuum secondary carbs don't open at that rate.

Starting at 3000, they should open gently and not wide open until about 7000.

Can you post some photos of your carbs and linkage please?

Fix the opening rate of the carbs and you will fix the dangerous concern you have.

Gary
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