Mixture screw on su's?

This might be a silly question but iv'e just changed the engine on my series 2a V8, it had strombergs on before but now with the new engine it has su's and i can't remember which way it is to turn the mixture screw to weaken/richen
Could someone please refresh my memory :der:

Cheers

in is weaken out is richen from memory

That'll do me,cheers

fett said:

in is weaken out is richen from memory

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I aint done one for years but I'm sure it t'other way round.

cant see how as in closes the valve. starting point is wind all the way in and the 2-3 turns out.

fett said:

cant see how as in closes the valve. starting point is wind all the way in and the 2-3 turns out.

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Not on an SU mate.

Now i'm confused

on su carbs winding in will weaken the mixture winding out will ritchen it. or at least it did on my rover v8. austin mini. austin 1300vdp.maxi etc.

Try this link mate

http://www.zhome.com/ZCMnL/tech/su.html

lyron said:

on su carbs winding in will weaken the mixture winding out will ritchen it. or at least it did on my rover v8. austin mini. austin 1300vdp.maxi etc.

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Thats what I said!

just ignore sloby rob he is a wind up merchant

dellboy1959 said:

Try this link mate

http://www.zhome.com/ZCMnL/tech/su.html

Click to expand...

Cheers for that,I know what I'm doing now

thanks again to everyone

If they are HIF with the float bowl under the carbs then remember to srew in to richen the mixture (screw in to put more fuel in)

The early carbs with the float bowl on the side and the mixture screw underneath is up (in) to weaken and down (out ) to richen

Just tweak them until the engine runs at its fastest on idle and adjust throttle stops to bring idle down again.

fett said:

Thats what I said!

just ignore sloby rob he is a wind up merchant

Click to expand...

Just done a Google and found this. If this is the type of SU we're on about here am I still a wind up merchant. :bounce:

Tuning - Single | SU - The SU Carburetter Company



Forgot to say, if it's the old type of SU take the dashpot and piston off, turn nut under carb anti clockwise till jet is flush with bridge, then turn nut clockwise 12 flats, re assemble and adjust as normal.

if they were simple they wouldnt have invented efi