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Bike carbs needle movement
beqa16v - 10/6/12 at 01:40 PM

Hello guys

Sorry for opening a new thread but I'm really in a hurry with this
I have carbs from ZZR750 which are so called E carbs where you have to put small washers to adjust needle position. Needles on my carbs were moving freely inside the slider up and down at some extent. I put two 0.5 millimeter washers under them.
Now that I have assembled them, they have movement inside the slider as well but it is spring resisted movement, not a free movement in all carbs but one.

How should it be? Should the needles move freely in sliders, should they be stuck or should they move with spring resistance?

snapper - 10/6/12 at 02:14 PM

The slider is pulled up by diaphragm above the spring helps to damp the movement, the needle is held in the slider by the spring.
In operation this should be ok

beqa16v - 10/6/12 at 02:20 PM

quote:
Originally posted by snapper
The slider is pulled up by diaphragm above the spring helps to damp the movement, the needle is held in the slider by the spring.
In operation this should be ok


What is correct?
Free movement of the needle inside the slider (not with slider) or movement inside the slider with spring resistance?
Three needles move with spring resistance, one moves freely without any resistance.