[Orleans]

Why does one of my carbs sliding valve flutter up and down at idle?
Rubber seal looks good.

 

[bitzz]

Check the spring and the bleed hole at the bottom of the slide.

 

[Orleans]

Spring length compared to the other one? Bleed hole is where ?
Thanks

 

[bitzz]

Spring length compared to the other one? Bleed hole is where ?
Thanks

Yes, compare one to the other, if you think the other is operating correctly.
the bleed hole at the bottom of the slide beside the needle. be sure it is clear.