Hi guys, carbs have arrived (woo!) do they operate using a vacuum takeoff from the manifold as this pipe here would suggest?

that one goes to the back of the air box i believe. on the filtered side of the filter.

they look real good

okay so not really very important then..

there arent any other obviously mysterious pipes, so i guess its a case of putting them on a manifold , connecting the fuel and edis to the engine and pressing the go button?

pretty much, yeah.
i'm not entirely sure what those pipes do, but from looking at them, i think they help operate the sliders (the bits inside that go up and down)
but yeah, connect to manifold, fuel in the bottom, 4 wires or something for the edis/coil/crank sensor, and crank the starter

As Blake said. Don't whatever you do just block the open end off though like I did. It plays hell with the fuelling and stalling and I couldn't pass SVA.
If I remember rightly that tube splits to each carb and provides a jet of air to each carb below the butterfly valve so it may be an idea to put a filter on it. I haven't but need to as I think mine are getting a bit of crud going through.

They look similar to blade carbs, I just put a breather filter on mine and it runs without issues.

Fit a small air filter on that pipe it stops crap getting in

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[Edited on 24/9/09 by jacko]

ah, i sort of assumed that they sucked air out the top of the diaphrgam from difference in pressure etc, but it sounds even easier than i thought

I have to ask, why bike carbs on a car engine?

all carbs do is mix fuel and air, big bike carbs are designed to do this job for a high performance engine and are produced in large quantities so the relative performance boost/cost ratio is vfavourable. Same for bike throttle bodies.

Just a vent pipe that on mine goes down a long pipe hanging down near the lower chasis rails.


Description

[Edited on 25/9/09 by YQUSTA]

On the bike they equalise the air pressure when the big scoop is ram air 'boosting'.

With no ramair on our cars they just need to be free to air. I just pulled the rubber hoses off and pointed the plastic connectors between the carbs down, or you can run them into your air filter if you have one (I don't)

I blocked them on my Striker and it caused havoc, backfiring, dumping fuel into the air filter etc.. be warned!