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I have a 1990 landcruiser with a 3f engine, i just replaced the carburetor and set idle mixture screw to 2 and 1/2 turnsout as the book says but i cant get it to idle at all. Standard aisan carb. Any

1990 3f landcruiser aisan carburetor

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  • Joshua Hill Jan 06, 2013

    It will only run above 1000rpm as soon as it drops below this it dies.



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  • Cars & Trucks Master
  • 50,527 Answers

Check that the idle solenoid shut off needle is connected . It is used to stop engine run when the ignition is turned off. If it is not connected the idle circuit of the carby will not function and the engine stops.

Posted on Jan 06, 2013


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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
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Posted on Jan 02, 2017

  • 22326 Answers

SOURCE: carb mixture screw ineffective

flexable pipe from manifold to fixed pipe for the brake servo its porous and sucking in air

Posted on Jan 10, 2009

  • 6674 Answers

SOURCE: I don't know where the air/fuel mixture screw is on my carb

There should be one screw (I'm assuming it's the Carter YF carburetor 1 barrel) that's by itself away from linkages etc, more to center at base of carb where it meets manifold, that is angled approx 45 degrees going in to base. That should be your mixture screw. What symptoms are you experiencing anyway?

Posted on Apr 04, 2009

  • 881 Answers

SOURCE: The carburetor is running too rich and fouling the

Afew things to check first before you start playing with it is to take out the air filter if dirty replace it ,Chrck the exhaust and see if its carboned up if so burn it over a fire and then tap it to remove all black carbon Then check the carby again as all carbys have a mixture screw and a air vent screw and check the compression to make sure the plug is caused by
richness and not oil.
Also check the engine breather pipe as a blocked pipe can cause the same thing.
Let me know how you get on Ron

Posted on Nov 04, 2009

  • 2002 Answers

SOURCE: 350 chevy with elebrook carb will not idle below

Manually operate the choke mechanism and watch to make sure it fully releases. Quite often mistakes can occur when putting the pieces back together and it won't fully release off fast idle.Are you absolutely positive that you didn't forget an o- ring or ball when you put the carb back together? Is there any chance there is a gasket upside down? Could the power valve be in wrong? These types of things could create that problem, there is too much gas going through your idle circuit.What happens when you turn in the idle screws? Are you sure about the timing? I don't have specs for a 1/2 ton but all the specs in my Chilton give me 6 degrees in California and 8 degrees everywhere else. These numbers cover all models of cars for a 1978 350. Hope this helps.

Posted on Oct 24, 2010

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1988 daihatsu charade carburetor

If we are talking the three cylinder CB23 engine the mixture screw is hard to get to and has an anti tamper shroud to stop prying fingers.

The Aisan carby is pretty reliable and problems with them on these engines is usually due to improper vacuum hose connections, or improperly adjusted idle, fast idle and deceleration screws.

A/F ratio is around the standard 14.7, but being a carby you will not get consistent mixtures because the jets sizes are fixed . On an EFI engine you can control the fuel flow, but not so with jets.

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