Question about 2005 Suzuki Boulevard C90

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How do you adjust air screws on 05 c90 fuel injected throttle bodies?

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They are on the side of your carb, turning it in decreases the air, turning it out increases it :) make sure you get the right screw, the otherone is your idle screw, the iel screw is usually he biggest

Posted on Aug 01, 2010

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How do you adjust idle on toyota 3.4 v6


If the vehicle is fuel injected, its not adjustable, and is computer managed.

If the vehicle is equipped with carb, then adjust the screw on the throttle body, until it runs right.

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Can anyone tell me the location of idle adjustment screw on 1990 4-runner v-6


If it's fuel injected, look on top of throttle body for a large screw that accepts a flat blade screwdriver. adjust by turning screw out slightly to increase RPM's;in to decrease. Unlike a carb stop screw, it's a jet controlling flow of air @ idle.

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Where is idle screw on 05 road king


Hi Anonymous, the idle set screw is on the right side of carburetor it's a brass screw with a spring behind it. Also there is a cam stop screw where the ends of the throttle cables hook into. If your fuel injected go to www.v-twinforums.com/twin-cam-88-engine-technical-discussion/73639-adjusting-idle-fuel-injection.html Good luck

Apr 11, 2014 | 2000 Harley Davidson FLHR-FLHRI Road king

1 Answer

Adjust air fuel mixture


there is a set screw in the front of the throttle body, to adjust it, but first why do you need to adjust it ? if low idle then it could be your TPS or IDLE AIR CONTROL VALVE, this valve is on the back of the TB and should be cleaned first, take the two.screws out which are torx heads and I think.a 25, once you have it out, take TB cleaner and a non lint towel and spray and clean, also clean the port where it sits in to, on these Dodges they are known for these to be carboned up, this would give low or high idle, also check to see if you have your 5volt reference on this sense, the TPS and crank sense, this one is hard to get to, it sits on top of your transmission bell housing on pass side. before you go touching the.idle set screw, check these and clean.idle air control valve first

Dec 04, 2013 | Dodge Dakota Cars & Trucks

1 Answer

Where do i find the idle air control valve


Depends on what type of car it is, if its got a carb there is a little screw in front of the throttle (there is a cable coming from the fire wall to the top of the motor) turn it in to increase and out to decrease. If it is fuel injected you will need to remove the air box and locate the throttle body. Then locate the screw adjustment and turn it in to increase throttle. If it is fuel injected you will probably need to check the mass air flow sensor, throttle position sensor, and the O2 sensor.

Dec 28, 2012 | Cars & Trucks

1 Answer

Where is the fuel sensor?


Jennifer,
Yes, that helps. The THROTTLE POSITION SENSOR is a black plastic device [abbreviation is TPS] mounted on the throttle body. It is held on with 2 screws and has a 3 wire electrical harness plugged into it. The easy way to locate the throttle body [in case your brother does not know] is to follow the black rubber tube which goes from the air cleaner to the engine. the aluminum device that rubber tube connects to, is the throttle body. There is another sensor called the IAC [Idle Air Control Valve] which also is attached to the throttle body. The IAC usually has 4 wires, rather than 3, going to it. That is the easiest way to differentiate it from the TPS [Throttle Position Sensor]
The TPS can be changed by unplugging the wiring connector and removing the two mounting screws. To further complicate the issue, Ford used two styles of TPS. One style has slotted holes for the two mounting screws. The slots are designed to allow the sensor to be adjusted. The second TPS design does not have slotted mounting holes in it. It can only go on one way, and is NOT adjustable. If your car has the style with slotted holes, you will need to use a computer scanner to read the voltage of that sensor [with the key on, engine off and gas pedal [aka throttle pedal] at idle. If the voltage for the TPS is between 0.9 and 1.1 volts, everything is OK. If the voltage is not within that tolerance, you must loosen the mounting screws and move the sensor in the slotted holes, to get the proper voltage reading.
If this is all to confusing for your brother, you will need to take the car to a professional mechanic.
Does your brother know if your engine has throttle body fuel injection or four individual fuel injectors? I ask, because that also makes a difference.

Nov 27, 2011 | 1998 Ford Escort

1 Answer

My engine rpm is too high


if fuel injected clean the throttle body.remove the intake hose and get one peice of cloth to clean the throttle by rubbing the inside surface.maybe you need to adjust the idling screw move it clockwise to close the air supply

Feb 17, 2011 | 1992 Mercury Topaz

1 Answer

Idle adjustment tool for fuel injected 2.5 liter engine. there is a screw adjustment below the throttle body assembly, what size wrench (hex head) is used?


Idle is controlled by an idle air control valve and the throttle position sensor-that setting you are referring to is set at the factory, the ECM will override any changes you make. You should clean thoroughly the throttle body and the PCV valve ,check for any vacuum leaks, and possibly remove the Idle air control and clean it, being careful NOT to get the top half wet with cleaner (electronics).

Jan 24, 2011 | 1995 Jeep Wrangler

1 Answer

I pass every test for smog except for the emissions (HC) part. The limits are 120 at 15mph and 95 at 25 mph. I'm at 155 and 160. I've replaced the catalytic converter, entire exhaust from tail pipe to...


Has anyone tried adjusting the fuel air mixture?

Based on what I am reading this is a gas engine and I am also assuming it is fuel injected. (Or does it have throttle body fuel injection?)

I suspect a case of dirty fuel injectors at the moment. They will need to be removed and cleaned.

If you have throttle body fuel injection then you will need the fuel air mixture adjusted.

If you respond can you let us know the "engine size" that is installed please. It would help us to help you in troubleshooting.

Thanks for using Fixya. Kelly.

Feb 08, 2010 | 1993 Chevrolet K2500

1 Answer

Car will start but wont stay on


Idle adjustment. You didn't state the vehicle, so I will post two possible solutions.

Fuel injected engines typically have an IAC valve in the throttle body. This valve adjusts the throttle plate to be open to a certain extent. The computer can control this valve as need based on the density of oxygen in the air. Remove the throttle body and clean the IAC valve or replace it if necessary. Mechanical (gas engine) experience necessary.

Carb engines typically have an idle adjustment screw on the exterior that may need adjusted. Mechanical (gas engine) experience necessary.

Dec 30, 2008 | 1993 Chevrolet Suburban

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