22R Idle Speed Screw?

hellfire · 04-19-2009, 03:10 PM

Where abouts on the carb is this screw? I've had a replacement Aisin carb fitted upto my 22R and the idle is set at nearly 1,500RPM once it's warm.. It also surges when my A/C is on (going between 1000-1500RPM when Idling, but doesn't surge when the A/C is off..

Also my revs don't really drop when I'm changing between gears, and it's starting to annoy me...

Any help with pics would be greatly appreciated.

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83 · 04-20-2009, 12:31 PM

Sorry for the size but I thought if I shrunk it down you wouldn't be able to see as well. Ignore the red circles. Blue circle is the idle speed screw. Sorry it's blocked by vacuum hose...best photo I've got though. You can see the spring that the screw goes through in the circle. Anyway hopefully that gets it for you. The lower tilted screw is the cold start idle speed but that shouldn't be your issue, go with the higher flat (level) screw I've got circled. Not sure what all your issues are...but that's the idle speed screw. Make sure you throttle cable isn't binding somewhere. Check from the pedal all the way to the throttle.

hellfire · 04-20-2009, 01:43 PM

Thanks mate, I will give it a few twists and see if I can get some results eh.

kcpanages · 04-21-2009, 10:21 PM

wow thats alot of vaccum lines........... id go bonkers with that..... where is the idle screw on a weber 2 barrel

83 · 04-22-2009, 08:55 AM

Google it. There's tons of Weber info online, you can probably find the user manual that came with your carb.

04-20-2009, 12:31 PM	#2 (permalink)
83 Registered User Join Date: May 2008 Location: Montana Posts: 1,691	Sorry for the size but I thought if I shrunk it down you wouldn't be able to see as well. Ignore the red circles. Blue circle is the idle speed screw. Sorry it's blocked by vacuum hose...best photo I've got though. You can see the spring that the screw goes through in the circle. Anyway hopefully that gets it for you. The lower tilted screw is the cold start idle speed but that shouldn't be your issue, go with the higher flat (level) screw I've got circled. Not sure what all your issues are...but that's the idle speed screw. Make sure you throttle cable isn't binding somewhere. Check from the pedal all the way to the throttle. __________________ Zach '83 Shortbed 4x4 L52HD Rebuilt & Mostly Stock Last edited by 83; 04-20-2009 at 12:32 PM.

04-20-2009, 01:43 PM	#3 (permalink)
hellfire Registered User Join Date: May 2008 Location: Australia Posts: 151	Thanks mate, I will give it a few twists and see if I can get some results eh. __________________ 1989 Toyota Pickup Dual Cab 22R, 5sp, SAS, 4.88s, 2 inch lift

04-22-2009, 08:55 AM	#5 (permalink)
83 Registered User Join Date: May 2008 Location: Montana Posts: 1,691	Google it. There's tons of Weber info online, you can probably find the user manual that came with your carb. __________________ Zach '83 Shortbed 4x4 L52HD Rebuilt & Mostly Stock

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04-21-2009, 10:21 PM	#4 (permalink)
kcpanages Registered User Join Date: Apr 2009 Location: clinton, louisiana Posts: 72	wow thats alot of vaccum lines........... id go bonkers with that..... where is the idle screw on a weber 2 barrel