Keihin 2bbl carb fast idle adjustments (cold starting engine, rpm need to be around 2000 rpms)

all adjustments need to be done when engine warm. Carb is probably due for an overhaul for one thing due to alcohol in fuel.
With engine off, connect tachometer. Disconnect and plug inside vacuum hose of the fast idle unloader. Engage fast idle cam by opening and closing throttle fully while holding choke valve closed. Start engine.
If fast idle speed is not to specification, reset fast idle by turning fast idle adjusting screw, located behind fast idle unloader, on carburetor. Reconnect the vacuum hose and disconnect tachometer.
idle speed 2000-3000 rpm

Thanks for the response.

What/where is the fast idle unloader? Is the fast idle screw (black knob) with
spring screw in the back of carb referred also as the throttle stop screw with this 2 bbl keihin carb?

Thanks!

Keihincarb

Here is a pic of the choke fast idle control . The unloader screw may be inside the diaphragm in previous pic.

I went ahead and looked inside of the diaphram of the fast idle unloader
and no adjustment screw visible..Just a diaphram , spring and pin. So
question still remains..How to adjust cold start idle to 2000 rpms.??.
I understand all information given in previous responses and pictorials.
Just where is the adjustment screw. ?? thanks

there is no screw you'll have to bend a tab in pic to get it to idle correctly like you want it.

Ok..Seems to me that it is a bit odd/unusual method of increasing the
rpms...Let me explain how I got into this situation...At the beginning
the vehicle would work just fine. Then one day, I would hit the gas pedal
and engine just quits/dies/turns off (but idles fine)...I eventually found
the cause (accelerator pump 4" vacuum hose crimped up, cutting off fuel
going
to carburetor). But before I found out what caused the problem in the first place, I took carburetor, merely cleaned
it up etc. (didn't purchase kit etc., didn't touch float etc., took it apart (3 pieces) and just cleaned
it up and replaced the carburetor back into vehicle...But through time I
adjusted this and that, but because I had one vacuum hose that I missed that wasn't connected, all adjustments got out of whack. So I was wondering in order
to not have to bend tab as suggested, would adjusting the mixture
screw setting (haven't touch it, but know where it is) solve my low
cold speed/idle problem. Of course after that, do all of the above
mentioned procedures etc....thanks

looking the manual it shows a model EA not ED is for your car. that is the only model we have listed. I've even looked online and not found that carb. adjusting screw is supposed to be behind fast idle unloader which you have said isn't there. I finally found a pic that may be your carb it shows the fast idle screw if this isn't it I have no idea what to tell you.

Not the correct model/picture of my carburetor. That would be too easy.
U-tube had a video showing bending of tab as you've
suggested..It just seems by doing it that way is too mask the real problem.
Northern Ca. weather isn't that extreme..After all it was working just fine
before the constricting 4" vac/fuel tube etc.. On ebay , a place down in LA.
sells/rebuilds remanufactured carburetor such as mine, with live testing
done (ie pre-set of rpm, fast idle, and fuel mixture). That's one option
I'm considering if all else fails.. With the knowledge I'm acquiring about this problem, I'm getting closer in getting it back on the road. It only has 60k miles on it. Thanks for all the information and help.....Thanks again