About my carb problems.

I just checked the throttle cable, everything looks fine, One thing I did notice, there is 2 different locations like an inch apart that you can connect the throttle cable to, both of them pull the throttle but one seems to have some play before actually pulling the throttle. Which one should it be connected too? Mine is connected to the one closest to the carburettor (Furthest of the two from the firewall).

Zac

Edit: Now that I think of it one is prolly for cruise? Which one?

That is the right one.The one with play in it is for the cruise,as truck should not go into cruise mode below 40mph.The play insures that it wont.BJ

Ok hmm.... I wonder what should be next?

Zac

. . . i'm probably going to regret getting involved itn this . . .

Can you post a picture of what, exactly, you attempted to adjust?

There are three external adjustment points, plus a fuel enrichment screw on a stock carburetor.

You may have a worn out bi-metallic choke spring.

Ahh, Ok so from what I just read when I searched 'B2200 Idle adjustment' it said that the four way screw is the one for mixture and also will bring the idle up. This IS the one I tried to adjust.

Where is the other one?

Heres a pic of what I adjusted. Sorry for the quality its just on my cell in the dark.

Zac

looks like the idle screw

From the Carb diagram in the article stickied to the engine area I can clearly see what the idle adjustment is and it appears that it goes in one of the two holes that are in the bottom right of the picture (The two holes one above the other, both look to be about 3/8" to 1/2") Am I right that it should go around here? Do you see it on the picture or see where it should go?

Zac

I could very well be wrong on that, I was just going by this:



"Q: How to adjust the carburator for 1990 mazda B2200?
A: Just under the air filter, cab side, you'll find two adjusting screws. One (A) "flat-head" screw, next to the throttle cables, and one (B)"4 way" screw used for the idle mixture. The first one (A) ajusts the idle speed, clockwise to hasten, counter-clockwise to lower. The second one (B), is the mixture screw. Clockwise enrichens the fuel mixture, and increses the idle. Take your time and adjust both screws for maximum performance. Also, check to see if there is a sight-glass on your carburator, and notice how well your float works."

Which said the 4 way is the mixture... But I dont know.

Edit: My guess is I was adjusting (From diagram) 23-340 and the right one is 23-374 but like I said in this picture: the idle screw is definitely 89 which is right at those two holes I mentioned but could not see on my carb.

Zac

Now you are. You need to get this truck fixed.
This truck should have been fixed a long time ago with all the help he got.

This is a classic choke issue.

Drop two cans of methanol "DRYGAS" into the gas tank, and change the fuel filter out for a new one. Drive it

A warm engine doesn't have choke issues.

Pull the fuel filter off carefully and blow it out into a clean container and see if it has water amoebas in it. If the filter is harder to blow through than a new one, throw it away.

You picture shows you trying to adjust a hot idle speed screw. If your engine was still on the high idle cam, that screw is disabled.