Question about 2001 Suzuki DR 200 SE

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Idle speed not constant, sometimes idle is slow and will die so i adjust idle up to norm then next stop will be idling way too fast.

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6ya6ya
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Posted on Jan 02, 2017

sisadsl
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SOURCE: 1976 suzuki gs400 motorcycleengine idles too high approx 3000 rpm

there should be a knob on the left side underneath the carbs, it has a flexible drive attached that opperates the idle screw.
If that is gone there will be a screw in the middle of the carbs, but do not move the screws with the lock nuts. they are for carb sync.
Dont adjust with the cable, it needs a small amount of free play, so the cable dosent rev the engine when turning lock to lock

Posted on Apr 12, 2010

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SOURCE: Hi, I have a 1981

This sounds like an air leak ahead of the carbs. Air that hasn't gone through the carbs is leaning the fuel/air mixture. Cracked rubber fittings, "O" ring seals, gaskets, and clamps between the carbs and the cylinder may not be sealing well enough. Note that a bad head gasket, bad valves or loose spark plug can also let air enter. The problem will get worse as time goes by. Do a compression check to check the valves.. Burned valves and cracked rubber seals are normally the culprits. Usually, all the valves need is to be re-lapped to provide a fresh face on the valve and valve seat. Check the site below for parts. www.babbittsonline.com

Posted on Mar 23, 2011

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1 Answer

It idles fast if I turn the idle down it stalls running rich on top end at fast idle sometimes it will drop to a very low idle and shut off


adjust the idle mixture screws first and then adjust the idle speed screw to compensate
adjusting the idle mixture screws will alter the idle speed but when properly adjusted then adjust the idle speed screw,

Aug 24, 2015 | Motorcycles

2 Answers

I changed a water hose from the water pump and now the truck dies at stop signs i can feather gas to keep it running no problem with starting


Hi Dina:
Try adjusting the idle stop on the carb. With the engine off, move the throttle linkage from slow to fast, then back to slow. There should be an adjustable stop (screw) that you can screw in a bit at a time until you get an idle speed that won't stall when it is in gear (automatic can be more of a problem than standard)

May 01, 2015 | Cars & Trucks

1 Answer

How do i stop the engine running at a fast idle


Assuming it is a completely mechanical system with no electrical or electronic control there is no actual fast idle facility unless it is provided by a Waxstat cable device fitted into the cooling system.

I think what you mean is the engine idle speed is too fast rather than it is running at "fast idle" which is a term used for a raised idle speed when an engine is cold and decreases as the engine warms until at normal operating temperature the idle speed should be normal. On an old diesel engine it is the Waxstat device if fitted that provides this facility or a hand operated throttle. Very old cars and trucks had hand throttles for fast idle but later this function was provided by the choke or strangler mechanism. Some luxury cars had an electrical device fitted but the fast idle of modern engines is invariably provided by electronics.

I expect you need to adjust the throttle stop screw of the injection pump. This is at the lever where the throttle linkage connects to the pump and there is generally two stop screws fitted that limit the travel of the lever. One screw limits the maximum travel of the lever and therefore the maximum engine speed and this is generally set during manufacture or remanufacture and sealed to prevent tampering.
The other screw is the idle screw which the lever is pulled against by a spring when at rest.
Before adjustment it is necessary to ensure the throttle linkage is not maladjusted and preventing the lever contacting the stop. Disconnecting the linkage until the idle speed has been adjusted will ensure this and then slacken the stop screw locknut, start the engine and turn the screw in or out as applicable until the desired idle speed is achieved, allow the engine to warm up and make further adjustment if necessary and tighten the locknut and reconnect the throttle linkage. Do not adjust any pump screw except the idle screw.

Good luck!

Mar 01, 2015 | John DEERE CONSTRUCTION LOG SKIDDER NIP...

1 Answer

1989 Cadillac Sedan De Ville engine stalls when air is turned on...tries to take off when stopped at stoplight..sometimes dies while driving..


It sounds like the idle compensation circuit for the engine is dirty or faulty. Have your car checked at a shop. have them check the idle air motor for dirt or malfunction. It could be that it only needs to be cleaned or replaced.

The compensation circuit adjusts the idle/slow speed of the engine. The air conditioner puts a load on the engine and this circuit adjusts the engine speed to compensate. Also, when the car is cold this circuit adjusts the idle speed to prevent stalling and help the engine warm up faster. I hope this information helps you.

Aug 16, 2010 | 1989 Cadillac Sedan DeVille

1 Answer

Carburator settings


If you have played with them the only way is to get it going pretty well is" ....
find the idle screw - usually larger - and turn in 1/2 a turn - hopefully that will keep it running - then find the 'slow' running screw turn it in until it stops then turn out 1 and 1/2 turns. Leave the fast one alone.
Get it started then adjust idle screw so its faaster if need be.,, now slowly turn the 'slow' screw in then out say 1/2 turn and listen for it either speeding up or slowing down leave it at the point where it sounds ok and try giveing a few 1/2 speed rev ups. If it goes back and idles as before - leave it.

The fast screw... (first make sure your exhaust outlet is totally unblocked - the slightest restriction here will cause it to never run right at high speed). Start it up and then try full throttle - same thing as before try adjust the fast screw first in a little then out until it runs well at what seems the faster speed it can - then check that it accelerates well from idle to full speed. If not adjust it a little more until it does.
Once it will idle ok and return to idle and also run full speed, then you can back off the idle screw until it will idle without the chain racing arond the bar.

Bear in mind th chain wil be racing around while you adjust it so keep fingers kids and idiots well away..because you are adjusting it with that chain moving..

Nov 07, 2009 | Poulan Wild Thing 2375 18" Gas Chain Saw...

2 Answers

Chainsaw blade turns constantly, even when idling.


If the chain turns on the bar when the saw is at idle, then the idling speed is still too fast. If you turn the idle screw down until the chain stops moving, it should still idle well enough not to stall. The chain should not move at idle.

If you turn the idle screw down until the chain stops and it won't idle, then you have to adjust the low speed carb screw. Odds are if you back off the idling speed until the chain stops moving you'll be fine. The idle screw is usually the one with a spring under it to maintain torsion. Somes the throttle plate, the one with the throttle wire against it, will rest against a screw stop for idle control. This is the easiest adjustment. Just back it out until the plate returns more and the speed will drop.

Make sure it is lubricated and not clogged up with sawdust.

Jun 08, 2009 | Echo 30.1CC Chainsaw With a 14 In.bar and...

1 Answer

Carburator tune up of charadade 1992 sedan. The engine is running too fast while idle at 1200 r.p.m.


Before you start check the status of your choke. One that is stuck on will cause a high idle. If the choke checks out, proceed to the following:


You should have what's called a 2 needle carburetor. A larger screw adjustment for idle, and a smaller for high speed.

Start by adjusting your low speed (idle) needle until you reach the desired idle. I prefer about 850rpms. Do this with the engine running and adequately warmed so that your adjustments are not thrown off by the automatic choke.

Next slowly open up the high speed needle. As you open it your idle speed will gradually increase. Adust it in 1/8 turn increments, pausing after each adjustment to allow the changes to take affect. Keep opening it until you stop increasing your rpms, then take it back 1/8 of a turn.

Next readjust your idle mixture screw so that your idle is back down to 850rpms.

Apr 29, 2009 | 1992 Daihatsu Charade

1 Answer

Engine dies at all speeds


I suspect an IAC (Idle Air Control) valve fault, or it could just be that the idle speed requires adjustment. Have you had a flat battery or a battery replacement recently? This can cause the computer to loose its learned idle settings and bring up these sort of issues. The idle should relearn itself in this situation after a few days, but sometimes requires resetting properly.
A competent auto technician should be able to diagnose and rectify a fault like this quickly, the idle systems are not too complicated on these vehicles.

Mar 03, 2009 | 2001 Ford Taurus

1 Answer

Poulan chainsaw 46cc 20" chain


You normally have 3 screws - idle speed - slow running and fast running.
First take care as if it runs faster than idle speed that chain will be whipping around also.

Second you have to determine what is the problem. Is it faulty at low speeds or high speeds ? or won't it idle.
If it has turn stops fitted to the screws you only have a small adjustments either way.

If it won't idle, try turning in the idle screw a half turn - until the chain just starts to move slowly.
If its dying at slow speeds, get is going and slow turn the slow screw out until it starts to run a bit rough then turn it back in to the point where its running smoothly.

Bad fast speed can be caused by simple things such as a blocked muffler ( insects too - I had one blocked off by a mudnest wasp) - otherwise get it running at full and adjust the fast screw as per the slow one - out till its rough then back in slowly until its smooth.

Suggest before all this tho that you get it running with the cover off the carby and then give it a good squirt of carby cleaner first - it may just clear out any 'poop' thats there.

(Have faith even tho I have a Poulan with a carb that refuses to run on anything but carby cleaner. I have pulled it apart a few times and renewed all the perishable bits buts its a real pig)




Feb 28, 2009 | Poulan Pro Chain Saw 46cc 20"

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