Topic: New to me carb issue

[Sdsbassist]

So, what would cause one carb slide to not raise when the others do? It lags behind the others for some reason. It starts to raise when the others are about 1/4" up.

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[ekpent]

 Are they the early style 750 round top carbs ? If so there is a bracket inside of the slide that holds down the needle jet and also holds the larger shaft that pulls the slide up and also where you do your synch adjustment. There is a chance that the bracket may be bent or tweaked. One way to tell is if the slide is removed that shaft is very floppy. Gets tweaked when people force a seized up slide when they are dirty or gummy. Another issue could be that slide is way off on its synch adjustment.

[Sdsbassist]

This is exactly what happened then. The card were gummed up so I'm not surprised that this happened.

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[ekpent]

 If that bracket is bent and your lucky enough to get the two screws out that hold it and your needle jet then its easy to bend back. I gently used my vise and checked it with a micrometer to a known good one.

[Sdsbassist]

Thanks again!

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