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Discussion Starter · #1 ·
Have been having issues with my 99 zx6r, after warming up bike will rev hang any where between 4500-7k rpms. Throttle is operating properly no vacuum leaks found have put two sets of carbs on the bike and it still will not act right, normal idle all carbs are synced air screws set right. Im losing patience with this bike
 

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Culprits include
Air leak/s.
Over Fueling (Float Heights)
Worn Car Spindles
I would make sure the float heights were bang on.
Replace the Carb Rubbers as there close on 21 years old now and might not be seating right on the cylinder head.
Worn spindles you can't do much about unless you get a set of low mileage ones used.
 
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