I have a 1986 Toyota with a 22r. After rebuilding the carb a while back, it tends to have a high idle. The obvious solution is to turn down the idle screw, however, the plug is still covering the idle screw since I saw no reason to mess with it. It should still be at the factory setting as far as I know.

It still starts and runs great. I am getting about the same mileage as before I did the rebuild. If the vehicle is warm, then it will occasionaly backfire when I shut it off, however I blame the high idle for that.

I checked the linkage and it does not seem to be binding.

I guess my question is what should I try before I take out the plug and mess with the factory set idle?

Read my carb faq in my signature. That screw with the plug is the idle mixture screw - don't mess with it. The idle speed screw is what you're looking for... read the FAQ for info on that.

-Scerb

Thanks for pointing that out. I was thinking of the mixture screw. I pulled my head out of my A$$ and gave the idle speed screw a 3/4 of a turn out and it fixed it right up. I did some errands in town today and made several stops. Each time there was no dieseling and best of all no backfire. Now I just have to find the guy that thought I was shooting at him the other day at the gas station and applogize. <img src="/forums/images/graemlins/lol.gif" alt="" />

I think I have mentioned it before, but your website regarding the 22r carb is outstanding. When I rebuilt the carb, I read it thoroughly before starting.