Motorcycle Stalls At Idle When Warm

Once fully warm and still running, turn the Low Speed Needle clockwise on your Linkert carburetor one notch at a time until the engine starts to miss. Place the choke control cable under the intake manifold from the front of engine (front pull choke). The take off is fine when I intentionally bring the idle up to 1500-2000 rpm. If you are still uncertain if they are opening or not you can take a normal paperclip and clip it onto the secondary diaphragm rod. I also moved to a 13. Best advice is to read owner's manual re running in new engine, & do that until engine is warm. Same symptoms. These high quality Car Sounds, Hot Rods, NASCAR, Race Car sounds are for multimedia producers who need permission to use the audio included in their projects. It's caused by a lack of spark which can be either the ECU's fault (on EFI cars), or the coil on pretty much any car. 2k Views The "Poor Man's" Carb Adjustment Sometimes, you can get lucky and a simple can of carb cleaner works magic. i disabled both of those and i'll be unplugging the side stand when i remove the charcol canister. Most fuel injected engines utilize a cold start circuit inorder to maintain idle when the engine is cold. No Trouble Code Problem Hesitation / Stalling / RPM Drop Off / Bogging / Sputtering Symptoms lol : Thats a mouth full - No C. If it's turned back down to 1500, no hang. Warm idle is 750-800rpm so squeeze the clutch in before that to avoid stalling. My 02 F150 stalls every time I slow down to stop and stalls at idle too. Bike stalling at idle, when warm I have a 2001 1200c sportster that runs good, except when it gets warmed up and I have to sit at idle, in traffic, for example. Firstly ,check for the condition of the sparkplugs,clean them or even better replace them as they usually get oxidised overtime and misfire at high temps. (BTW its an 03 R6). No stalling or even much dip in the idle. Having it too far out just lessens the speed of the high idle for starting. The stalling typically occurred at idle or upon deceleration. It only happens once and then I can drop down to first with no problems during a ride. I might not have noticed this problem earlier if I started the bike and then put on my gear before riding and that's his arguement. Gets a little warmer, engine starts to die. Forum discussion: Hello all, looking for some ideas/knowledge. Comments for 2004 Ford Taurus Idling Issues. Sometimes, if I have a false start, it will idle very roughly and I have to keep on the gas to keep it from dying. Reset the IAC to run right about 18 at idle in park, this gives me like 28 in gear which is pretty awesome. If I try to ride off, it sputters and coughs a little if I don't let it warm up a bit. ok guys , i haven't ride my 2010 ultra classic for about month due to weather here. It was surging a bit at warm idle in park. If you find it does not stall with the larger jet but has to be open more than three turns with the smaller pilot jet, put the larger one in and set the fuel screw at 1/2 turn. Right around that time is when the stalling occurred. I have read up on the idle hanging issues of our bikes and have lubed the throttle cables and it snaps back nicely. The idle is very steady, and I checked the carburetor and exhaust gaskets for leakage. And as soon as I let the rpms drop the - Answered by a verified Motorcycle Mechanic We use cookies to give you the best possible experience on our website. Restart the engine. It does run just seems to give out soon after. This morning I put it on the stand and fired it up. After truck warms up starts to idle bad, and also starts making a loud suction noise like a vacuum leak. With my first R27 the miss was pretty frequent, and I thought it was a normal effect of the engine shaking the float, interrupting the fuel, and leaning out the mixture to cause the miss. It is at the dealer now. If the car idles rough this can also be indicative of bad plug wires, distributor, or rotor. Intermittent cold stalling problems are almost always fuel-related. I will see if that does the trick, but somehow I doubt it. Insert the cable bowden wire into the choke control (front or reverse pull). an engine stall on a motorcycle, particularly if the motorcycle is engaged in a low speed turn; as a motorcycle is likely to be engaged in after a cold start, will. It does not seem like the battery has anything to do with it. But if you follow a few simple rules, you can avoid hard-starting hassles and repair costs. Today, the car stalled on me while driving and would not start back up as well. Not often but often enuf to be bloody annoying. The rep is saying that it could be that the problem has always been present. When you increase the idle using the idle adjustment knob, you are simply raising the idle speed to a point outside the closed loop limits saved in the ECU. It runs pretty good when it is cold, but after about a half hour of riding it starts to chug, chug, chug, then looses power and just dies. Here are some: Stalls at idle, stalls when I put the clutch in, stalls when I turn a corner, misfires, surges, no power, cuts out, no power at top revs, runs rough, etc. this has happened maybe 6 times in 2400 miles. My bike will occasionally stalls at a stop sign, also during take-off from a dead stop the engine seems to one to - Answered by a verified Motorcycle Mechanic We use cookies to give you the best possible experience on our website. Thanks, I will have the dealer check the kick stand switch also. Also noticed short intake hoses in front of fairing pointing toward airbox openingbut can't possibly reach. When you crack the throttle, the system switches to open loop mode and its the transition that causes the stall. In carburetted vehicles a similar device known as an idle speed control actuator is used. Even more so after you've run the battery down, tried push starting it or even leaned the bike against something so you can deliver a "better" kick, yet it still won't start and run properly. 1) Readjust the pull-off or replace if necessary. Even if I pull that fast idle lever all the way, it'll sit at 1500rpms and jump up and down below 1,000rpms and then eventually stall. " (November 2016): "My wife bought a brand new GT650 in 2013. Faulty or Poorly Adjusted Fuel Intake System. Today's updates. I rode 25-30 miles at about 45ish mph stopping occasionally at lights to work. I have a Graves full exhaust (utilizing stock O2 sensor) and PowerCommanderIII with the Graves Superstock map on it but have heard that even totally stock R1's are having this problem. 2014 Bonneville, hesitates coming off idle (when opening throttle), sometimes stalls with clutch full in when the throttle is open (normal launch). My '12 EFI Speedy keeps stalling and I ain't paying no more $$ to get the feedback like that - better ask the community (thanks in advance!). There is an idle speed adjustment screw on the top of the throttle body (down a hole) which appears to be a orfice that bypasses the throttle blade. Eventually during the day when its hot, it actually stalls when in neutral or when I press the clutch and let the rpms fall. It's wierd because it ran fine last week when I rode. Hi everyone I just brought home an 85 maxim 750. When you crack the throttle, the system switches to open loop mode and its the transition that causes the stall. adj carb idle screw at 1 1/2 turns out and not it. It would make sense this is why the bike is stalling. My second R27 does not do it as much - mainly just when cold. I have a 2007 Ultra classic (its stock except for the SE 255 cam) that runs fine and idles fine in temps under 85 degrees. But if you follow a few simple rules, you can avoid hard-starting hassles and repair costs. has half thank of gas in it as it shows i still ride another 100 mile before fill up. The motorcycle engine often stalls at idle after warm up. Liquid-cooled, 999. To help them modernise and develop motorcycles with much broader global appeal Royal Enfield recruited dozens of staff from Triumph, and elsewhere in the motorcycle industry, to gain as much expertise as they can in order to bring a new range of much higher quality Royal Enfield motorcycles to market. Debunking the Motorcycle Kill. Only ran good with the choke on or keeping the throttle open a little. It follows a typical path from the float bowl through the main jet, into what is called the idle well, which is a small. set valves at. After replacing the head the engine would not idle, so I had the carburetor rebuilt. Crower's high performance camshafts, crankshafts, connecting rods, roller lifters, rocker arms, valve train components and large variety of aftermarket engine parts for international and domestic automobiles, diesels, boats, tractors, motorcycles, and trucks. After riding for about 15-30 minutes, I have to keep my hand on the throttle or it stalls when stopped. It almost seems like a choke problem. It follows a typical path from the float bowl through the main jet, into what is called the idle well, which is a small. After the engine is hot, it will idle unattended for as long as I need it to. Holley's products also include performance fuel pumps, intake manifolds & engine dress–up products for street performance, race and marine applications. Ok, So Im at my whits end!! I just bought, in Oct 20011, a used 2007 BMW F800ST (no warranty). The bike refused to maintain an idle at stop lights and died on me twice. Hello all, I hope you guys are doing well and are enjoying your Himalayans! It has been a while since I have lurked here been riding on the Himmi too. Either way the solution is the same. Nevertheless, Billy progressed well and, when the family moved to Bromley in Kent in 1971, he transferred to the Ravensbourne Grammar School. Do not post these threads in any other forum. If the previous owner(s) didn't keep up on maintenance, you'll want to have it looked at anyway for valve adjustment (can affect idle if they've not been checked), carbs, etc. Carb cleaner will work, but your throttle body cleaner might be the same, not sure really. It can make the scooter hard to start, it can make the scooter slow to accelerate, it can cause the scooter to idle badly and stall or it can make the scooter idle fast so that it's trying to go all the time and needs the brake to hold it stationary. - Hesitation @ low RPM Throttling / RPM's drop off car almost stalls/ afr goes into 20s - Stalling at idle on occasion - Floored it takes the fuel but is running too lean for safe operation. Allow it to idle until it reaches normal operating temperature. Part ordered and replaced. Then place choke cable under the cable clamp. they kept it 3 weeks( thats right3 weeks) and adjusted valves and installed new timing chain. I have read this is due to cam play, can anyone tell me a cure or is this something I should live with? Maybe a Carb adjustment or oil change with different oil type?. Very rough idle with a repetitive cycle that is smooth for a couple of seconds then misses badly, occasionally stalling. Typically cold start idle issues are the result of a lean mixture. Once warm, it will idle at 1,100rpm, but if left alone for a couple of minutes it will slowly stumble and stall. It has about 34,000 miles on it. Her local mechanic has changed the plugs and fuel filter and whatnot. If your dirt bike won't start or stay running, it's known by all how frustrating and embarrassing this can be. Mine keeps stalling out when I'm in stop and go traffic. Bike stumbles at idle to 1/4 throttle For the separate problem of stalling Do you have you main idle knob set for correct idle speed when the engine is hot or. I purchased this quad last fall (used - 1600km), have taken it on a few rides (tame rides) and I purchased a plow for it. The idle is obviously what gives you fuel during idle. It seemed better at. And when it comes to older cars and classics, well in many cases, they need even more maintenance, having at some point suffered from the ravages of neglect. If the previous owner(s) didn't keep up on maintenance, you'll want to have it looked at anyway for valve adjustment (can affect idle if they've not been checked), carbs, etc. Problem: After driving about 2 miles, on traffic lights RPMs go down and car stalls on idle. My 2012 always takes more than one try to start on warm starts but fires right up on cold start. There is no CEL. There are a number of reasons why an engine might misfire while it is idling. It was surging a bit at warm idle in park. To adjust the idle speed, first warm up the engine with a 15 minute ride. if you raise the engine speed to 1. Wow, that is a huge difference!. Is it possible that the bikes sucking the air in the thru the leak or a small exhaust header leak and leaning the mix causing the hanging idle after it gets warm? if i feed it some clutch it drags the revs down causing it to get less/no air from the exhaust leak and so drops idle to where the idle screws is set - which is essentially stalling. It was cheap - about $80, but only lasted a couple of years. Leave it be. Now I think its something simpler. Then I get on the motorcycle and push the self starter. Forum discussion: Hello all, looking for some ideas/knowledge. Either way the solution is the same. Thanks, I will have the dealer check the kick stand switch also. The car will start, warm up and idle fine for about 30 minutes of driving, and then will stall at idle. when your bike is fully warmed up what are you idling at? i know mine from the dealership was right around 1k when warm, maybe a touch less. If your engine stalls while your car is at an idle speed (idling means you're sitting still), you might not be able to steer it to the side of the road. The result is the engine will die out. I have a theory. If the idle speed increased, adjust the idle speed knob to return the bike to a real slow idle speed. Scooter starts when warm, otherwise is very difficult to start. 1500 stalls when hot. When the sensor warms up, it doesn't return to the idle position and causing the engine to stall. In carburetted vehicles a similar device known as an idle speed control actuator is used. Faulty or Poorly Adjusted Fuel Intake System. It's wierd because it ran fine last week when I rode. This circuit allows for a rich mixture while cold, think of it as a computer controlled choke. Too Lean When a carburetor is running lean, the fuel-to-air ratio is off because the carburetor is delivering too much air. Second summer like this. my 999 doesn't stall at idle. So instead of getting a 12 0'clock wheelie from idle you can take off from a stop like a less crazy person if desired. If your ignition timing is way off or if the automatic spark advance is stuck. perfect ever since. So my brother just picked up a Honda day Shadow and even though it ran great both times we looked at it, for some reason it has been acting up when he brought it home, rough idle, stalling, backfiring ect. Sometimes I can get it to rev a bit by very carefully and slowly opening the throttle. Yuuuuup same exact problems I had, tho it only threw the bucking/stalling/kicking issue like a total of 8 times before I knew something was up and each time got worse. A broad range of problems can cause rough idling in a motorcycle engine. Before attempting to fix a carburetor problem on your motorcycle, you need to come up with the correct diagnosis. The motor would be idling and then drop the RPMS and miss fires. I really appreciate the detailed description of how to do this! You dont find too many detailed pictures on forums anymore. 45V, but would idle fine at some stops, and die at others. The engine hums fine in idle, hot or cold. The rep is saying that it could be that the problem has always been present. This only happens on steeper hills of a mile long or so. i brought it to the shop where they didnt really know what was going on since it doesnt always do it, so they. The damn thing will idle beautifully all day long in the driveway hot or cold (has manual choke by the way). A bad generator / alternator might also cause the problem if your battery is weak. (BTW its an 03 R6). happens more often as above. I think it's getting too hot. I also moved to a 13. 3) Engine running too lean because of vacuum leak or dirty jet. On my '82 GS550 it is between carbs #2 & #3 and faces towards the rear of the bike. If the temp goes above 85 it idles about 500 RPMs or dies when you come to a stop. Carb cleaner will work, but your throttle body cleaner might be the same, not sure really. And the problem is often worse on a hot day. Devilish stalling problem 2007 F800ST My dear wife bought a used F800ST a few years back. Eventually during the day when its hot, it actually stalls when in neutral or when I press the clutch and let the rpms fall. When I stop at the lights and select first gear, twisting the throttle only a tiny bit the revs drop right down and it will stall. i disabled both of those and i'll be unplugging the side stand when i remove the charcol canister. Low idle and stall when warm 1991 nissan 2. Keep the engine running and twist the idle adjust screw until it hovers within the 1100-1300 speed. My bike started to stall while I was riding and this is how I found the problem. Some older cars use a carburetor to process fuel, rather than a fuel injection system. Starting and Stalling Q: I have an 01 FLHTCUI with over 40,000 miles with an issue of starting and stalling. Note that on models with engine management controlled idle control valves, there is always some airflow through the valve when at idle, as this is the only air that the engine is using for idle (the throttle is fully closed). The motorcycle engine often stalls at idle after warm up. then once the engine warms up it would be likely to stall at idle. If the spray enters an air leak area, the idle speed will increase noticeably. My motorcycle does not idle, I need to keep reving it for it to stay on. Starting and Stalling. bike still backfires during warm up, and shuts off during idle. If it starts and idles good, but loses that good idle as it warms up. After running the engine for a few minutes it was doing better with no choke actually. If the idle circuit is running rich, then the carb will never be right. Commonly seen is unstable idle; and, in particular, a large increase in idle rpm after full warm-up. It works by putting pressure on the butterfly valve and determining the stop or closed throttle position. If the switch is failing, you will probably not hear any clicks from the main relay, which fires the ignition. Don't know of any difference between idle and curb idle. Took it to the dealer, tried turning up idle a little but still ends up stalling. In that case, the car stalls due to non-combustion of the fuel. It rides fine and only happens when the bikes hot. I have not checked the other plugs I just changed all the o-rings inside my carbs, and the mileage improved by 10mpg. After the engine is hot, it will idle unattended for as long as I need it to. This ^ The initial fast idle is there for a purpose - to get the oil flowing & warm up the bike. Fuel goes bad after time, and the first circuit/jet to clog with varnished up fuel is the pilot jet. I purchased this quad last fall (used - 1600km), have taken it on a few rides (tame rides) and I purchased a plow for it. Today's updates. Warm up the engine before riding. It almost seems like a choke problem. 2008 king 750 stalling when hot I have been viewing alot of your forums and I don't think I have seen my exact issue that is going on with my quad. Pull the airbox, pull the throttle bodies, loosen the locknut, and break loose the loctite on the 2mm allen (I recommend holding a heat gun on the screw for 30-45 seconds!). On models that have auxiliary air valves, these valves are (or should be) fully closed once the engine is warm. Cleaning the carbs was a good bet; the popping on deceleration, blackened spark plugs, and loss of power are all symptoms of fuel not making it through the carbs. You may have to register before you can post: click the register link above to proceed. The engine's idle speed is controlled by how much air is allowed to bypass the throttle via the idle bypass circuit in the throttle body. That being the case, if you have not done an idle calibration with a GS911 or factory GT1, you are chasing ghosts. There's a little screw on the left side (has a black plastic end on it, shouldn't be hard to find) that will allow you to adjust it a fair amount. Re: m1000 sputter/bogging issues Originally Posted by HiLlClImB911 Bd numbers are from arctic edge motorsprts, can isn't cracked as I checked before touching up rust spots, intake is in good to new condition, was taking a few pulls (3-5) when warm to start. Scooter dies/stalls when warm/hot after about 3 miles and won't start until cold. Too Lean When a carburetor is running lean, the fuel-to-air ratio is off because the carburetor is delivering too much air. 5k then close the throttle, it shuts down) It can be driven, its just down on power. If the car idles rough this can also be indicative of bad plug wires, distributor, or rotor. Anyone else have a problem with the engine stalling out when it's running hot in this hot weather. RPM's are below 1,000 at idle without the joke. The engine starts immediately but runs for 2 seconds at only 600RPM (way below normal idle speed of 1200 RPM) and then stalls immediately. Either way the solution is the same. '05 C50 Stalls on idle I just ripped off the pair and installed a UNI filet (I had installed HK 2. My '88 KZ305 is stalling out on me. yamaha has refused to extend my warranty after a valve job. The plug on number one looks solid, a little hot but the f/a ratio looks good. The engine is above idle rpm where the idle air control motor is no longer able to control engine rpm. It's also embarrassing when it stalls while I'm putting my helmet and gloves on. You'll have more luck with this on a motorcycle-related forum like the Virago Tech Forums. The engine is above idle rpm where the idle air control motor is no longer able to control engine rpm. I have changed the mass air flow sensor the SHE valve as well as that hard to get to and vacuum elbow that makes its way to the passenger valve cover. The engine starts immediately but runs for 2 seconds at only 600RPM (way below normal idle speed of 1200 RPM) and then stalls immediately. Hi i have just brought a cheap bike for driving round the farm on but the bike wont hold the revs it will kick over and fire up, but if you dont hold the throttle partually open it will die. Scooter dies/stalls when warm/hot after about 3 miles and won't start until cold. If you see 900rpm on tacho or manage to stall, you have prooved that anti-stall feature has been removed from your bike. This can be done if the IAC learned incorrect values from an improper throttle adjustment, or other situation that caused the learning to be wrong. If this happens, turn on your hazard lights and call either the police or roadside assistance to help you safely get your car out of the road. If the idle circuit stops working properly, then the car will not receive the right amount of oxygen required for operation. Shut the bike off, wait for the idle are controller to seat (the mechanical sound that occurs about 5 secs after you shut the bike off). When the bike gets really hot from a long ride, the idle mixture becomes too rich for the hot engine and it stalls. If you down shift and decel the engine being spun up a little keeps it from stalling. It does run just seems to give out soon after. I need an unbiased answer because the motorcycle is salvage. The Scooter has about 2300 miles on it. I have the clutch in and the bike stalls out and almost sounds like is gasping for air. A cold engine needs a fairly rich fuel mixture to start, and to idle smoothly while it warms up. Sometimes seen is an engine that is difficult to start, or perhaps acts very lean, etc. On certain motorcycles, an improperly designed throttle position sensor could cause an intermittently unstable idle when the engine is at idling speed when the motorcycle is stopped or during low-speed operations. Can a bad battery make a motorcycle stall? Does it stall at idle, just after you start up? Does it stall at stoplights, stopsigns, etc? Does it stall when the engine is hot or cold or warm. after going back and forth on the issue the yamaha rep agreed to pay for 1 hour of shop time to get the problem fixed. Carb cleaner will work, but your throttle body cleaner might be the same, not sure really. Idle level too low If the idle level on your (warmed up) engine is lower than the level decided by the manufactorer, you will usually have two problems: - The engine will easily stall - especially on take off - The oil pressure inside the engine will be very low, and you may see the oil pressure lamp flicker. Other factors can make taking off in first gear without stalling even harder such as being on an incline or driving a more powerful bike. If you see 900rpm on tacho or manage to stall, you have prooved that anti-stall feature has been removed from your bike. What you would want to do is turn the idle screw in to the point right before the back wheel starts spinning when on the center stand. Alternatively, when the key is first turned to position two, the oil light, brake light, charge light,. Idle calibration very often solves idle stumble and stalling. " (November 2016): "My wife bought a brand new GT650 in 2013. It only takes a little turning to noticably raise or lower the RPM's, so take your time. And if the revs are turned up to 2000 (from 1500), it hangs. Right around that time is when the stalling occurred. When starting truck cold, it runs perfect. To adjust the idle speed, first warm up the engine with a 15 minute ride. later when it starts all over again. Counter-clockwise will lower the idle, clockwise will raise it. The symptoms include stalling when coming to a stop, or very low idle after starting, or stalling if the throttle is "blipped" (opened and closed quickly). After the engine is hot, it will idle unattended for as long as I need it to. Start the engine, let it warm up and ride the bike around until it's hot. On the first start after reassembly the idle started hunting pretty badly, it eventually stalled out. Washing the Motorcycle Do not spray high pressure water on the When washing the motorcycle, follow the radiator fins. That being the case, if you have not done an idle calibration with a GS911 or factory GT1, you are chasing ghosts. Yuuuuup same exact problems I had, tho it only threw the bucking/stalling/kicking issue like a total of 8 times before I knew something was up and each time got worse. My bike will occasionally stalls at a stop sign, also during take-off from a dead stop the engine seems to one to - Answered by a verified Motorcycle Mechanic We use cookies to give you the best possible experience on our website. Engine/Idle issues and stalling after rain riding with a cold engine This past weekend, I rode my sv to a friend's house and on the ride it started to rain at a steady rate (not a downpour). This circuit delivers fuel for idle, and has the smallest passages found in carburetors. So instead of getting a 12 0'clock wheelie from idle you can take off from a stop like a less crazy person if desired. The bike refused to maintain an idle at stop lights and died on me twice. 2) Fast idle RPM incorrect (too slow) 2) Speed up the fast idle to factory specs. Anyone else have a problem with the engine stalling out when it's running hot in this hot weather. A main relay can cost $50 or more, so be sure before you replace it. 4 l d21 4 cy 2 wd I feel the codes may be the answer here, idle should be around 8-900 rpm. I have found that the idle speed will vary, when the bike is warm, depending upon atmospheric conditions, and maybe to some extent the gas du jour. Idol was a bright student, and passed his 11 plus, but he was bored at school. Sounds like, though I can't hear it , it's running lean at idle, if the revs don't drop off all the way at idle. Stock they tend to idle between 1,100 and 1,200 RPM. I have a question. this is happening consistently at random times, often as the motorcycle warms. i grew tired of it and decided to do something about it for not only myself but for all of us, so i called yamaha and told them of this problem and explained that this issue could get me and my passanger both killed. A broad range of problems can cause rough idling in a motorcycle engine. After the engine is hot, it will idle unattended for as long as I need it to. 1500 stalls when hot. Engine/Idle issues and stalling after rain riding with a cold engine This past weekend, I rode my sv to a friend's house and on the ride it started to rain at a steady rate (not a downpour). Ok, So Im at my whits end!! I just bought, in Oct 20011, a used 2007 BMW F800ST (no warranty). As soon as I'm holding in the clutch to drop my gears down, or put the bike in neutral, then she wants to stall. Since then I have started to have problems with the engine stalling after doing a few high speed passes. Until it is fully warm, it will idle at 500rpm, stuttering and stalling unless I keep the rpm's up with the throttle. My RPMs normally idle at 1. My VW CC has been experiencing warm/hot start stalling issues. Then it runs at an idle but when I try to. If you have a bit of a stumble in very light, low speed operation, sometimes it helps to richen it up by another 1/4 turn. i disabled both of those and i'll be unplugging the side stand when i remove the charcol canister. I bought the bike it in 2010 almost 5 years ago and still running the same battery which I assume is the original, I checked it at rest this morning and the voltage was 12. Commonly seen is unstable idle; and, in particular, a large increase in idle rpm after full warm-up. 2007 Honda 420 Overheating & stalling. If your ignition timing is way off or if the automatic spark advance is stuck. 2k Views The "Poor Man's" Carb Adjustment Sometimes, you can get lucky and a simple can of carb cleaner works magic. High idle by: Anonymous I have had 2 shops smoke test and many cans of starter fluid and replaced all gaskets and pcv valve hose new air box mass air flow sensor and iac and tps. If you have a bit of a stumble in very light, low speed operation, sometimes it helps to richen it up by another 1/4 turn. It does not do it all the time, probably once every couple of weeks. Thanks, I will have the dealer check the kick stand switch also. Turning in the idle mixture screws did not affect the AFR readings hardly at all even screwing them in would stall the engine. Today, the car stalled on me while driving and would not start back up as well. Common causes of intermittent stalling may include a bad idle speed control (ISC) system, low fuel pressure, loss of ignition, vacuum or EGR leaks, or other problems we'll get to later in this article. New non-resistor plugs -(tried two differant sets Champion and Autolite) at. Idle BasicsAll carburetors come with a simple yet efficient idle circuit. I never have power loss when accelerating, and have plenty of Blue smoke (even when at idle?) I have checked the temp and it is running at around 240F. I started running 91 E0 after a couple months, and a single station in my city has it so it's always the same station. The scooter starts, then stalls. Its seems to really hate getting a blip of throttle at low RPM. instruction below: 1. It will start right back up. Changed spark plug, oil and air filter. The engine starts immediately but runs for 2 seconds at only 600RPM (way below normal idle speed of 1200 RPM) and then stalls immediately. It is still hard to start the engine especially in the morning, and sometimes even if the engine is still warm I need to rev a little bit to make it start and sometimes idle is not stable too. It runs better but still will not idle correctly - it idles okay, then it speeds up by itself for about 30 seconds. I understand what you are saying about the Choke Circuit. If your dirt bike won't start or stay running, it's known by all how frustrating and embarrassing this can be. the motorcycle stalls during low idle operations,ie: slow parking lot traffic, slowing down and downshifting coming to a stop light, decreasing speed & maneuvering around turns, pulling and holding the clutch (engaging clutch) to change gears at highway speeds. If you blocked off the intake crossover, this could mean 30 minutes or more. Stalling is almost always an issue at takeoff from a stopped position as the engine doesn't have any real power going into it yet so it is easy to kill it if you aren't careful. I managed to get the car to start by pulling the battery and touching the positive and negative battery terminals together to reset the ECU. Check carefully for damage to painted CAUTION surfaces. The bike would start at high idle and then slow to a stall. Before attempting to fix a carburetor problem on your motorcycle, you need to come up with the correct diagnosis. You just pick up your bike and get going—no exhausting all of your precious energy trying to kick over a hot bike. Engine/Idle issues and stalling after rain riding with a cold engine This past weekend, I rode my sv to a friend's house and on the ride it started to rain at a steady rate (not a downpour). Adjust the fuel screw so the CO is ~3-3. You cannot adjust the idle unless the engine is fully warm. Its seems to really hate getting a blip of throttle at low RPM. A great sample question from a standard motorcycle test is when starting your motorcycle on an uphill incline, what should a motorcyclist avoid? The correct answer is stalling or rolling backwards.