Carburetor Conundrum!
 

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Hello everyone. Working on a 1979 Suzuki GS750L. Does anyone know ‘why’ this port would be plugged? AND is it in the correct spot (carb #2)?? (see pics)
Every minute, ten seconds or so (sometimes a minute, thirty seconds) the #2 carb float bowl would spew out the bowl’s drain tube. **Yes, float heights are set properly.
So I REMOVED the plug, and now the THIRD carb spews every couple minutes.
Thoughts? Ideas?? Recollections???
ALSO... what gap should be set at slide? (see pic)
Thanks for your thoughts.