Motorcycle Stalls At Idle When Warm







Commonly seen is unstable idle; and, in particular, a large increase in idle rpm after full warm-up. I have approx 25,000 miles on her and last few hundred miles she's been stalling out after getting on throttle and after restarting when warm. At a preset speed the engine idle circuit takes over and the engine runs at the lowest speed possible without stalling. id say bump up the idle a little. IF it is an idle speed problem follow the throttle cable to the carb, Under the lever the cable is attached to is a spring loaded screw, screw it in to increase the RPM, AFTER the engine is warm If it runs fast on start up that's OK if it drops when warm, you want the warm speed set up for driving, not idling in the driveway. A broad range of problems can cause rough idling in a motorcycle engine. To make it easy to use, worldwide family of satisfied customers the manual contains a detailed list of people who appreciate Honda’s. 2018 indian roadmaster stalls at idle when handlebars turned to the right, 2018 indian throttle problem, indain motorcycles keeps stalling , indain scout stalling issues, indian chief classic keeps stalling, issues with indian mototcrcles, stalling problem with indian chief classic. When the sensor warms up, it doesn't return to the idle position and causing the engine to stall. Nevertheless, Billy progressed well and, when the family moved to Bromley in Kent in 1971, he transferred to the Ravensbourne Grammar School. If I turn off the truck and turn back on , it starts up fine till 5 min. Use europe fuel maps if you have a red key ie. If I don't let it warm up, it dies at the first red/stop. 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). So I've been having a rough idle issue lately and can't pinpoint the problem. 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. My rule of thumb is to start the bike and let it idle and warm up while I gear up, I was told from the stealership mechanic to let it warm up for a couple of minutes before riding, which I can pretty much tell when it's warm as the idle lowers from when you first start it, and that's with aftermarket spike air, morton infernos and a cobra fc. If I try to ride off, it sputters and coughs a little if I don't let it warm up a bit. Anyways, right around the 220 degree mark and above (and especially when it hits 226 and the fan kicks on) the idle gets a little stuttery. If wait (let it sit off) for 2-5 min - then restarted with no further issues. If you blocked off the intake crossover, this could mean 30 minutes or more. I have a BMW 2008 F 800 st and the oil looks watery. Then I get on the motorcycle and push the self starter. When the bike gets really hot from a long ride, the idle mixture becomes too rich for the hot engine and it stalls. Then back it out counterclockwise 5 to 10 clicks or notches,. A lean mixture gives an erratic idle, with tendency to stall when not fully warm. It has about 34,000 miles on it. 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). 1985 Honda Nighthawk 700 Won't Idle When Hot I bought it and I found that after riding it for over 20 minutes it will not idle and if it stalls, it will take at. 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. Now you have your idle speed set in a pretty good place. A correct idle mixture gives an even idle and colorless exhaust. Warm up the engine before riding. I purchased this quad last fall (used - 1600km), have taken it on a few rides (tame rides) and I purchased a plow for it. 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. Set idle speed adjusting screw, clockwise to increase rpm, counter-clockwise to decrease rpm. If you can track down a 90 degree screwdriver (goes out about a foot and then makes a 90 degree turn with a flat blade about an inch or two away from the angle) then use that to adjust the mix screws while they're on the bike to see if it messes with the idle speed at all. motorcycle has a hesitation just off idle, from a cold start, during an engine warm-up, at ambient temperatures of 50*f to 90*f. this engine hesitation can result in an engine stall. When it stalls, after some hesitation, it will start again. After the engine is hot, it will idle unattended for as long as I need it to. Motorcycle Forum > Motorcycle. Until it is fully warm, it will idle at 500rpm, stuttering and stalling unless I keep the rpm's up with the throttle. It opens an additional channel allowing more fuel into the carb and after it has started it then can be shut off as the Pilot Air Jet system takes over for the idle. Once you look inside a throttle body, you will probably be surprised at the dirt, gum and varnish that have accumulated there over time. Page 2 2004 Honda CB250 NIGHTHAWK OWNER’S MANUAL Page 3 It’s full of facts, instructions, safety information, When you own a Honda, you’re part of a and helpful tips. 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. Reset the IAC to run right about 18 at idle in park, this gives me like 28 in gear which is pretty awesome. Its seems to really hate getting a blip of throttle at low RPM. This screw will determine your idle speed so you should set it low to preserve fuel at stop lights. Typically cold start idle issues are the result of a lean mixture. About 2 weeks ago, it was around 20-25 degrees F Philadelphia area. I have a question. 1985 Honda Nighthawk 700 Won't Idle When Hot I bought it and I found that after riding it for over 20 minutes it will not idle and if it stalls, it will take at. Top 10 Causes of a Rough Idle | JL Motorworks. 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. But if you follow a few simple rules, you can avoid hard-starting hassles and repair costs. Now you have your idle speed set in a pretty good place. they kept it 3 weeks( thats right3 weeks) and adjusted valves and installed new timing chain. 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 damn thing will idle beautifully all day long in the driveway hot or cold (has manual choke by the way). 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. Braking stalls are caused by the engine being decelerated very quickly to the idle point and/or the clutch not releasing quickly enough. my 999 doesn't stall at idle. a drop of water sizzles and sputters off of it. I decided to check a few things, and this lead me to finding exhaust header #4 wasn't getting as hot as all the others, so based on what I read here, I replaced the plugs, and that did nothing. 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. 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. 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. In fact, if you've noticed a rough idle, stumbling initial acceleration or even stalling – all when the engine is fully warmed up – a dirty throttle body could be the culprit. Ive since put about 1. My bike the BMW F800GS has decided to stall/cut out as if its out of fuel (which it isn't). It is important to understand the idle circuit to properly adjust the idle. I think it's getting too hot. Everything has to be on-spec for proper performance. hi guys i have an issue with my 03 honda cbr954rr it starts great when cold but as it reaches working temperature the bike idle drops then it stalls then & its very hard to restart when hot. 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. Once I warm up my GS500 up and during idle it knocks for a sec and the engine idle drops and stalls sometimes. The bike would start at high idle and then slow to a stall. The Red knob is the idle adjustment. You must then re-visit the fuel screw. 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?. Several incidents happen when coming to the stop light and I have held the clutch in completely but as soon as the bike come to the stop the engine will die even with the clutch held all they way in touching my handlebar. After riding for about 15-30 minutes, I have to keep my hand on the throttle or it stalls when stopped. If wait (let it sit off) for 2-5 min - then restarted with no further issues. Well it stays between about 1k -1. 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). The scooter starts, then stalls. I understand what you are saying about the Choke Circuit. It works by putting pressure on the butterfly valve and determining the stop or closed throttle position. If a valve is just a bit tight, it can leak a bit after things warm up and expand. Anyways, right around the 220 degree mark and above (and especially when it hits 226 and the fan kicks on) the idle gets a little stuttery. 450 lift cam with new JIMS PowerGlide lifters. Then, after about a minute or so, it starts to idle rough and then stall. A broad range of problems can cause rough idling in a motorcycle engine. And in that time shes started to intermittently stall on me when coming to a stop. Then place choke cable under the cable clamp. Anyway, my idle is ****, it sits around 500 rpms and dips when I gas it to around 1-300 Rpms. The bike would start at high idle and then slow to a stall. My problem is that the bike will stall when I hold in the clutch, after downshifting from 4th to 3rd gear, or 3rd to 2nd. Retighten the lock nut. It is at the dealer now. This crazy machine ran fine all day Friday, but started giving me grief again Monday. 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. Took it to the dealer, tried turning up idle a little but still ends up stalling. Start the engine, let it warm up and ride the bike around until it's hot. Normal idle speed is 1050. Watch Your Dashboard Lights. 002 both and nothing switched carbs and nothing. 2007 Suzuki C50T stalls at idle after engine warms up Runs fine at startup but after idle kicks down it stalls out - Suzuki 2007 Boulevard C50T question Search Fixya Press enter to search. " (November 2016): "My wife bought a brand new GT650 in 2013. A computer is adjusting the idle speed, based on complex calculations. The dreaded stalling. Idle speed screw, ½ turn clockwise from engagement point. When I warm it up for it's oil change, I'm going hook the computer up and do a TPS reset which will require a idle reset too. 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. Includes troubleshooting information. adj carb idle screw at 1 1/2 turns out and not it. Nothing outragous but just one time it will barely be idling high enoug to keep running and then the next time I ride will be idling a bit high. Off idle means the engine isn't idling. Adjust this from the non-exhaust side of the motorcycle if the bike is hot to avoid burns. None of these things are good. 3) Check for vacuum leak. 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. I thought it was transmission at first or mayber the torque converter. 2014 Bonneville, hesitates coming off idle (when opening throttle), sometimes stalls with clutch full in when the throttle is open (normal launch). If your ignition timing is way off or if the automatic spark advance is stuck. Turn the car off. R1150RT Stalling Problems I have an 1150RT 2002 that has been stalling for the last year whenever I hit the bottom of a long hill and put the clutch to down shift from 3-2 or 2-1. As with any product that has a limited shelf life, you should buy only. The surging would generally occur between 3,500 and 4,000 RPMs. Part ordered and replaced. New tank, new fuel system and carbs have been cleaned and rebuilt recently with stock internals. You have started the motorcycle and are ready to go! Tips: If the motorcycle engine fires and then immediately stalls, just press the start button again until it fires a second (or third) time. so this weekend was warm enough to ride , start the bike , idle for few minutes, then head out and fill it up, in first gear while am turning to gas station it was stalling like it want die , fill up gas and went for 40 miles. The bike ran better after that and I noticed that my idle was now smooth and 50 rpms higher. Either way the solution is the same. If your ignition timing is way off or if the automatic spark advance is stuck. The engine is above idle rpm where the idle air control motor is no longer able to control engine rpm. My bike the BMW F800GS has decided to stall/cut out as if its out of fuel (which it isn't). Mine keeps stalling out when I'm in stop and go traffic. Now, the bike has sat for awhile, maybe 2 seasons. I 03 honda cbr954rr stalls on idle & hard to start when warm - Honda Motorcycles - FireBlades. Different owners seem to describe this problem using a variety of expressions. Anyone else have a problem with the engine stalling out when it's running hot in this hot weather. 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. After riding for about 15-30 minutes, I have to keep my hand on the throttle or it stalls when stopped. later when it starts all over again. Five hole-it accepts the std 2 1/16″–2 1/8″ gauges and the 3 3/8″ tach or speedometer. Anyone else seeing this? I simply don't trust this bike in traffic anymore. Motorcycle Classics is America's premier magazine for collectors and enthusiasts, dreamers and restorers, newcomers and life long motorheads who love the sound and the beauty of classic bikes. Assuming hot is where it belongs, yes the other two are the. Subject: Re: Stalling at stops after engine warm Sat Apr 07, 2012 10:29 am I had knocked off the little tube that goes right over the idle screw last night, that's why it wouldn't start at all. Sometimes RPMs go down to 400 and car is OK (but battery light comes on for a second) and sometimes RPMs go straight down to zero. Adjust the fuel screw so the CO is ~3-3. I did NOT do a tune up this year—tune up meaning new plugs. Posted: 21:53 - 17 Apr 2012 Post subject: Stalls when put in first gear When I initially start up the bike and drop from neutral to first, the engine stalls pretty much every time. In case of a carburettor, adjust the pilot jet slightly to enrichen the mixture. Piaggio NRG Extreme AC 2003; Hi, Recently, my bike has been cutting out or bogging down at full throttle, Anything below half throttle is fine, but this is strange as it was fine a few days ago, was happy at fully throttle, but now when i open it up from a slow speed, the rev's will die out and stall, if i do it at high speed, it sounds like im chopping on and off the throttle then it will bog. If I start it and don't touch the throttle it is sometimes ok and sometimes not while it warms up. Took it to the dealer, tried turning up idle a little but still ends up stalling. 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. Ok, So Im at my whits end!! I just bought, in Oct 20011, a used 2007 BMW F800ST (no warranty). 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. You may have to register before you can post: click the register link above to proceed. Issue with the idle circuit. Motorcycle manufacturer recommendations vary, but most issues can be isolated using a. In fact, if you've noticed a rough idle, stumbling initial acceleration or even stalling – all when the engine is fully warmed up – a dirty throttle body could be the culprit. Several things could cause a motorcycle to stall when slowing down including leaving it in gear when coming to a stop or not properly releasing the clutch. Sometimes it will go down back to 1500 other times it will just stay and I will have to adjust the idle screw/knob again. There is no CEL. If it were me, I would look into cleaning the idle control valve. Wait a minute for the engine idle to level off, then use a pen and paper to write down the RPMs that your engine settles and idles at. so to keep. I put fresh gas in it and kicked it over and let it run at idle for about 10 minutes. It seemed better at. 2) Fast idle RPM incorrect (too slow) 2) Speed up the fast idle to factory specs. The motorcycle engine should be running at a fast idle. Car stalls at red light or stop sign, do this and make you car run like new - Duration: 14:52. Use europe fuel maps if you have a red key ie. Turning in the idle mixture screws did not affect the AFR readings hardly at all even screwing them in would stall the engine. If its fully on the engine stalls. If I try to ride off, it sputters and coughs a little if I don't let it warm up a bit. Recently, I cleaned it up and drained the old gas out of it. Average Rating. Then can be restarted immediately but also stalls in 1-2 minutes. When was last tune. It will do this repeatedly. A computer is adjusting the idle speed, based on complex calculations. I have a 2000 ford ranger xlt 4x4 with 177000 miles. Keep choke open slightly to keep colder engine idling high enough so it does not stall. I've replaced the fuel line from the left/right tank and off selctor and put on a different type of fuel 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 also wants to stall when cold and first started up. It has appx 5400 miles on it, & I had no problems w/ it until May-2008. Her local mechanic has changed the plugs and fuel filter and whatnot. Intermittent cold stalling problems are almost always fuel-related. Husqvarna Motorcycle: 2013 TE 310 R will not idle once warm (TRUE). RestoRider00. 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. 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. Subject: Re: Stalling at stops after engine warm Sat Apr 07, 2012 10:29 am I had knocked off the little tube that goes right over the idle screw last night, that's why it wouldn't start at all. Suzuki motorcycle stalls when hot I have a 82 Suzuki GS550L. Stock they tend to idle between 1,100 and 1,200 RPM. If the choke is in the open position, the carburetor's power valve may have blown, or the idle jet within the carburetor may be clogged with dirt. If wait (let it sit off) for 2-5 min - then restarted with no further issues. when hot, the idle sometimes sounds like its too low, but it never actually stalls on its own. You will find that if you adust it to idle when cold, you will find that the idle speed is too high once the motor is warm. One of the potential engine issues is a rough, or inconsistent idle speed. I have a 1990 Suzuki Katana 600F. My motorcycle does not idle, I need to keep reving it for it to stay on. Off idle means the engine isn't idling. Air cooled Overheating? I was out driving in slow speed traffic, just city-riding, no freeway speeds, but when i pulled into a parking lot and checked the cam it's hot enough to fry an egg on. Anyone know what it could be?. 8cc DOHC inline-four cylinder engine produces exceptionally high top-end power without sacrificing low to mid-range power thanks to a Variable Valve Timing (VVT) system, Ride-by-Wire Throttle Bodies and more. If the idle circuit stops working properly, then the car will not receive the right amount of oxygen required for operation. Holley's products also include performance fuel pumps, intake manifolds & engine dress–up products for street performance, race and marine applications. Easy step by step guide on how to repair an automotive engine that has stalled or intermittently stalls while driving, this information is presented in order of popularity and pertains to most vehicles. 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. 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. It could also be your idle setting is too low. And if the revs are turned up to 2000 (from 1500), it hangs. Carb cleaner will work, but your throttle body cleaner might be the same, not sure really. Warm the bike up enough to not need the choke, then sit on it and let it idle in neutral while watching the tachometer. 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. 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. Assuming hot is where it belongs, yes the other two are the. This will ensure that the carburetor idle circuit if functioning. If it starts and idles good, but loses that good idle as it warms up. If the bike passes the intake test; have the dealer or your mechanic scan the m/c for possible codes. If you set the idle so it will idle cold with no choke then the idle with be around 3K with the bike warm. Usually misfires occur when there is no spark, the air/fuel mixture is out of balance or the engine is losing compression. Sometimes seen is an engine that is difficult to start, or perhaps acts very lean, etc. bike idle drops, almost/sometimes stalls when clutch is pulled in I have an 03 zx6r that has this problem. When at normal idle, the system is in closed loop mode. Subject: Re: Stalling at stops after engine warm Sat Apr 07, 2012 10:29 am I had knocked off the little tube that goes right over the idle screw last night, that's why it wouldn't start at all. Don't forget; many parts suppliers have a "no returns" policy on anything electronic. 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. Motorcycle stalls when stopped at a light? Hi, i have a 1999 yamaha yzf r6 and after about 30-45min of riding it stalls when ever i slow down too fast or when i am stopped at a light. Prise the grommet out. You need gas, air, compression, and spark to go. let idle and sprayed. If the engine is cold it sound like waving but when its warm it sound normally at 1500 rpm. The motorcycle engine often stalls at idle after warm up. 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. Hot Rod Dash from Vintage Speed (R) Polished fins and sides with satin cast between fins. 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. Hello Group, Picked up a 1980 XS650SG with 5100 miles from the original owner that had it in storage for 31 years. It now has developed a stalling problem when engine is at idle (whether coasting to a stop, or immediately upon stopping). 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. Assuming hot is where it belongs, yes the other two are the. It may well be that these events are the hesitation & stumble problems described in this article. It seemed better at. Commonly seen is unstable idle; and, in particular, a large increase in idle rpm after full warm-up. Set the ignition spark to almost full advance on your motorcycle and start the engine. Help! bike stalls when coming to an idle 7 Stupid Mistakes Beginner Motorcycle Riders Make (2019. 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. 2k or something like that for the most part, however every few seconds its like it cuts out for a split second and almost dies, but jumps back up again. The other thing I've noticed with my Triumph is that the idle speed changes when the bike is warmed up. Faulty or Poorly Adjusted Fuel Intake System. 3) Check for vacuum leak. After listening to years of customer complaints about their inability to cope with poor Gold Wing performance symptoms and the ruthless exploitation by many repair shops back in the Eighties, we were compelled to study the problem. Motorcycle manufacturer recommendations vary, but most issues can be isolated using a. It does not seem like the battery has anything to do with it. Took it to the dealer, tried turning up idle a little but still ends up stalling. We then did a "wild" code check on the motorcycle and got a code for the Powertrain), P1356-no fire at rear jug. It has about 34,000 miles on it. 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. 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). When it's hot, the idle becomes erratic but when it's cold it will sit perfectly still. Ok so i'll try to describe whats going on as well as I can because i'm totally stumped. If wait (let it sit off) for 2-5 min - then restarted with no further issues. Tps causing stalling and erratic idle. It only takes a little turning to noticably raise or lower the RPM's, so take your time. My RPMs normally idle at 1. Air cooled Overheating? I was out driving in slow speed traffic, just city-riding, no freeway speeds, but when i pulled into a parking lot and checked the cam it's hot enough to fry an egg on. ok guys , i haven't ride my 2010 ultra classic for about month due to weather here. If a valve is just a bit tight, it can leak a bit after things warm up and expand. Switch back to my regular 91 E0 starts stalling again. Check the valve clearance. So you mean the engine only stalls when you don't have your foot on the gas pedal? Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved. You can not get it perfect for all times. Watch for overheating--pointing a big shop fan at your engine will help it from getting too hot during the fast idling. 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. The analogy would be hot water with fuel, cold water with air, and volume with the idle mixture screw. 1000-1100 rpm on a 4V will have it sputtering and chugging like a Massey Ferguson, and it will stall easily at idle, be hard to start, and will likely cut out when you chop the throttle with the clutch in. Using the idle speed screw, adjust the idle speed to 1500 rpm (use a digital tachometer). It was cheap - about $80, but only lasted a couple of years. I think it's the idle air controller. Anyone have this problem and solve it? I have a 2000 ZX7r With 5400 miles on it. Bike stalls at idle when warm ALL For Sale (FS), Wanting to Buy (WTB), Wanting to Trade (WTT), and similar threads MUST be posted in the correct subforums. This circuit delivers fuel for idle, and has the smallest passages found in carburetors. 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. Start the engine and take note of the idle RPMs. If the bike is warm enough to go where you need with the cold start device on, then go. bike idle drops, almost/sometimes stalls when clutch is pulled in I have an 03 zx6r that has this problem. Ok so i'll try to describe whats going on as well as I can because i'm totally stumped. The US-spec bikes, which had more stringent emissions controls, were most prone to these problems, although ROW (rest of world) owners have reported similar problems. To take off I need to put it in neutral get the revs up and drop it into first. Reset the IAC to run right about 18 at idle in park, this gives me like 28 in gear which is pretty awesome. 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. 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. If the bike passes the intake test; have the dealer or your mechanic scan the m/c for possible codes. Cold, it's just low enough to keep the bike going but once warm the tickover is around 1100. Problem: After driving about 2 miles, on traffic lights RPMs go down and car stalls on idle. Includes dealer locator and information about fishing and boating. Check the behavior of the dashboard lights if your vehicle stalls as mentioned before. my 999 doesn't stall at idle. It was cheap - about $80, but only lasted a couple of years. Once I warm up my GS500 up and during idle it knocks for a sec and the engine idle drops and stalls sometimes. Now, the bike has sat for awhile, maybe 2 seasons. Re: Saab 9-5 Idle Stall problem I'm unclear which hose you mean. Difficulty Scale: 5 of 10. Touch and move each line gently and listen for changes in the way the engine sounds, being careful of the engine's hot or moving parts. Bike stalls after starting up and flat spot off idle hot from the battery, accessory and ignition. Hot Rod Dash from Vintage Speed (R) Polished fins and sides with satin cast between fins. Only ran good with the choke on or keeping the throttle open a little. Ok so i'll try to describe whats going on as well as I can because i'm totally stumped. Do not post these threads in any other forum. This only happens on steeper hills of a mile long or so. When it's cold - car is OK (idle about 1000RPMs). It won't idle past 3500 rpm. The surging would generally occur between 3,500 and 4,000 RPMs. You still may have other issues as mine would only occassionally stall with a low idlenot everytime. However that has nothing to do with rough idle. Can't trust the folks at Autozone and its to cold to keep riding my motorcycle to work. 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. My bike started to stall while I was riding and this is how I found the problem. 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. So when I start it and keep the rpms up around 1500, it runs good and smooth but as I let off the throttle it revs down to a stall. Please adjust the idle mixture via the following method: Set the fuel screw to 2-1/2 turns as a starting point. Flow test carb to check jetting. If I try to ride off, it sputters and coughs a little if I don't let it warm up a bit. 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. After riding for about 15-30 minutes, I have to keep my hand on the throttle or it stalls when stopped. Again, good low-speed carburetion is key to prevent braking stalls. See if you can get a good idle out of it that way before messing with the carb screws. 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. It usually works fine if I let it warm up for about 2-5min before riding. Can be saved to your computer forever. The engine runs normally otherwise. Borrowing this image from this wonderful Saab DIY site, perhaps you could point it out. the manual calls for 1050-1150 rpm fully warmed up, normal idle speed. now slowly turn the idle speed screw in until the engine just barely runs almost stalling. Not often but often enuf to be bloody annoying. My truck will idle fine but when you go to drive it won't accelerate properly, it kind of bogs out at which point you have to release your foot from the petal to prevent it from stalling out. Almost immediately she mentioned it would stall when she was down shifting as she rode toward a traffic light that had changed to red. then once the engine warms up it would be likely to stall at idle. Follow the steps. This will ensure that the carburetor idle circuit if functioning. Replied by LJ11194 on topic Low idle when starting hot engine. About 2 weeks ago, it was around 20-25 degrees F Philadelphia area. Use europe fuel maps if you have a red key ie. I have a 2006 yz250f that has sat since 2009. It works by putting pressure on the butterfly valve and determining the stop or closed throttle position. They say they can't reproduce the problem. Ok so i'll try to describe whats going on as well as I can because i'm totally stumped. The stalling typically occurred at idle or upon deceleration. It also stalls as you slow for traffic lights & roundabouts. No Trouble Code Problem Hesitation / Stalling / RPM Drop Off / Bogging / Sputtering Symptoms lol : Thats a mouth full - No C. bike still backfires during warm up, and shuts off during idle. Re: Rough running and stalling at idle Reply #8 on: July 03, 2012, 11:14:11 PM before th RE i had a klr650 and the sidestand switch and the clutch interupt switch were both known problem areas. Categories: American Classic Cars | Muscle & Pony Cars Cars need maintenance, there's no question about that.