Motorcycle rough idle when hot not as rough as before. Then when I came to a stop Mar 26, 2011 · Try switching the 1 and 4 spark cables. Apr 6, 2015 · :feedback:My 2011 eguc, with stage one and vance and hines power ovals and 33,000 miles, just started idling rough when cold,and will die if I don't hit the throttle to keep it going. Sep 20, 2019 · Same thing, rough idle immediately. 3K views 3 replies 4 participants last post by nezo Sep 14, 2008 Jun 13, 2005 · Sometimes it will idle at 1200 for a while, but it will start to go nuts and crank it self up to 4000, and it won't come back down. on it. I recently did the midpipe thing and have been having a rough or jumpy idle (goes up and down). If the bike has a carburetor, try cleaning the idle jet (well, just spray the whole intake throat with carburetor cleaner, it's in there somewhere). Oct 19, 2023 · Here’s Why Your Motorcycle Won’t Idle Without Throttle. Bike is an '07 with about 12k miles. If the engine is running too rich, which it more than likely is, then adjusting the idle is just going to make the bike idle at a higher rate with that same rich mixture. It fires up. About 3 months ago, my bike stalled at the traffic lights, which it had never done before. When the engine is warmed up after a ride, the idle RPM shakes very often. Nov 15, 2015 · It could be caused by an irregular misfire, or if the carbs are not synched and set up properly that cylinder may not be contributing fully to running at idle. I Check the Spark Plug Wires Any ideas? May 25, 2022 · A rough idle is simply a symptom of a more severe underlying issue. It's like your bike's got a mind of its own, revving up or dropping RPMs without any input from you. Adjust the idle mixture screw for smooth idle and readjust the idle speed screw to the correct rpm at idle – 950-1100 rpm. I had difficulty starting it and the engine ran rough and would not idle properly. I also tried something like WD40 around the intake, but I didn't see anything. Yesterday I cleaned and oiled the K&N air filter, even though it didn't look particularly dirty (OEM paper filter is next on the to-buy list). It probably won't, so put the cables back and switch the spark plugs for the same reason. Every so often it will run and idle fine; but only for a few minutes. Air- and fuel-filter issues may also be the reason your motorcycle won’t idle without Jan 24, 2022 · The idle is pretty rough as well. Understanding what causes this can save you time and money. Customer: I have a 2004 yamaha r1 that starts running rough and jerking after it warms up Mechanic's Assistant: Does the vehicle also idle rough? Anything sound different? Customer: It idles fine when it's cold but stalls at idle when it's hot Mechanic's Assistant: What's the year and model of your bike? Oct 19, 2023 · A rough idle on a motorcycle is when the RPMs develop inconsistencies and go up and down sporadically while idling. Google VFR 800 fast idle and start from there, lots of topics about it. Does anyone know how to fix this or am I going to have to live with it? May 6, 2014 · 2006 has a fast idle lever on the left bar use it. Anything that upsets the “air fuel” balance, will cause a rough engine idle. I read through these forums and learned of the '12 Minute Tune'. Decreasing advance 5* at idle makes idle smoother, but has no effect on the rough spot. You are getting an improper amount of spark, air, or fuel. Stopped at a set of lights and suddenly rough idle, clattering noise from the primary case, stalling. However, after riding for around 15 minutes, the bike develops a surging condition at idle or while decelerating at slow RPM. The Most Common Things To Check For A Rough Engine Idle: Vacuum Leaks. 3k rpm. It only adjusts what the engine is revving at. I shut her down. Once it dies, it will not restart right away unless I open the throttle quite a bit. It takes a few minutes to warm up and then idles pretty good, but I am getting the occasional spit and sputter May 23, 2007 · Hello everyone, I finally got all of the wire problems straighten out on my Bayou 200, It ran strong and very good for about a week. Mar 9, 2023 · “2014 [Harley-Davidson] Street Glide was running perfectly, quiet, no issues. It's been a while since I read that part of the manual. Runs and rides well, good power but when the engine gets up to full temp the idle will hang up at around 2200. If you ran it for 8 minutes, the cold side should be hotter. Improperly Tuned Air-Fuel Ratio. This might be a carb pop, but it also sounds a bit metallic like a snap or a zap. Jun 15, 2021 · Randomly, my bike (2014 F700GS) could not maintain the idle. Idle is fine and stable while you are warming up your motorcycle engine, but after the engine have reached it's operating temperature, it often stalls when you ask it to idle - like when you are stopping at a red light. everything reinstalled. Most motorcycles require an idle speed of 1,100 to 1,300 RPM (revolutions per minute) to operate properly at a standstill. Worn engine parts such as valves, rings, or camshaft will cause a rough idle. Feb 27, 2017 · The idle RPM is varied by a wax unit. It oscillates from abot 1400 to 1800 until the temp reading kicks on @104. Has anyone had this happen before? Jan 26, 2024 · A rough idle in motorcycle engines is often caused by fuel issues, air intake problems, spark plug degradation, improper carburetor adjustment, dirty air filters, clogged fuel injectors, and vacuum leaks. 2 range at present. Check carburetor base gasket and manifold gasket. Acts like it's not taking its fuel right. Fixing a hanging idle is often within your grasp, and you'll be back to smooth riding in no time. start her up, runnin rough and I can see back fire into the throttle body. Motorcycle Idle Too High. Customer: 2005 fz1, rough idle and stalling at idle. Best results are had by just waiting a few minutes, and then trying May 28, 2014 · Rough Idle Jump to Latest 2K views 9 replies 4 participants last post by jxp4169 May 29, 2014 Sep 13, 2008 · help, rough idle and stalls frequently Jump to Latest 7. Same thing. but it's runnin rough. The first video shows how the bike idles after warming up from being completely cold which is consistent and strong. Jul 7, 2015 · You could maaaaybe try opening the choke when it's warm, and turning back the idle speed and see if the problem persists. I have recently bought an Yamaha R6 2019 motorcycle and having a hard time with addressing the rough idle RPM issue. 2K views 4 replies 4 participants last post by 86655 Feb 14, 2013 Apr 5, 2008 · Hey fellas. Feb 15, 2024 · Hello everyone, I bought my motorcycle a few months ago probably in June 2023 and it has never truly idled properly. When it was in gear there were no issues and it still ran fine with normal power. If your idle is for example 1000 rpm, this cylinder might only be getting the fuel to run at 500 rpm because of the slide position or something to do with the air screw or pilot circuit. Idle AFR's are in the 12. Wipes off your finger as sooty and back. Not a huge deal but I find it very annoying. You might also have a problem with a dirty air filter, but if the bike was just serviced I assume they would have checked that. Sometimes the bike will even stall. It never stalls but shakes all over will smooth out when you give it fuel. Hey riders! In this video I will be QUICKLY showing you how to diagnose potenti Jan 26, 2024 · Experiencing a 'hanging idle' on your motorcycle can be both irritating and a sign of underlying issues. Why does it idle fine when I'm starting it up (on a warm day I don't even use the choke, just start it, rev it, good to go) but after I've been riding it, it will stall if I let it idle for just a few seconds. Any thoughts. It runs badly, like a diesel engine, and will rev between 1200 to below 900 and eventually stall. Gauge should read approximately 18 inches at idle. The first sign you’ll have of a motorcycle running lean is if you are having a rough idle. on it Mar 5, 2014 · Idles rough when hot I have a 2010 rg no problems in cool weather or until it gets hot. Typically, something that causes a rough idle will also bring up other problems that may have severe consequences on the engine. Some of the possible causes of a high idle are hard to prevent unless you are willing to look at every nut and bolt of your motorcycle routinely. I tried all amounts of "choke" eventually getting it to start but it kept getting worse to the point where I had to stay on the gas at stop lights to keep from stallingalso any amount of choke Jan 24, 2007 · ROUGH IDLE. Second problem is when the bike gets hot (+80°c) every time I leave from a stop or anywhere in 1st gear, the bike don't respond to the throttle it will choke, then I need to pull the clutch and play with the throttle until it It should trigger fast idle and your bike should idle at a higher rpm when cold than when hot. Aug 4, 2023 · It seemed to idle a bit higher and with NOTICABILY reduced dipping/stumbling. While it’s safe to drive with a rough idle, you run the risk of making the issue worse and contributing to a more extensive repair list. drained tank, repalced filter. Now the exhaust note even sounds bad. Starts soon as you hit the button but just runs rough nowAny suggestions or ideas would be much appreciated. Not only is a rough-sounding engine indicative of a mechanical problem, but it also interferes with the state of your ride. May 26, 2012 · THE PROBLEM: Bike will start fine, then after warming up (usually 3-5 minutes or so), it starts to drop in idle speed, and will eventually die. Indian Scout Rough Idle. so definitely a timing issue. Two stroke running rough when hot So my 2013 Keeway Hurricane 50cc two stroke scooter (yes, i know, not a motorcycle, but i only have studded tyres for the scoots) has developed an interesting problem. I recently pulled out the carburetor and Jan 24, 2013 · 09 mule won`t idle in hot weather Jump to Latest 3. Thanks Jul 13, 2011 · 07 R1 rough idle. Now with 9500 mj. Let the motor run for a few minutes to warm up. When your idle is high these are usually the problems you come across: Nov 23, 2020 · I have a 2013, 90th anniversarey, R1200R with 45,000 kilometres on the clock. Once warm, take note of the motorcycle’s engine idle speed. Place your motorcycle in neutral and start the motor. Have cleaned throttle body & ran seafoam in a tank of gas, changed plugs. Spray water or carb cleaner around the suspected areas and listen for changes in the engine sound while looking for bubbles. 2005 Rough Idle on hot start. I put a slip-on exhaust last week and it sounded great. Runs rich at idle and stumbles at low speed. On these bikes you sync the idle air control valves which controls cold idle. It’s cold idle is a little bouncy. If I set the idle when it drops, it will hang up again. Running lean causes lousy idle and running hot, among other things. When I say hot ambient temperature, i'm talking about the amb temp gauge reading 115 F at start time. A faulty throttle position sensor or idle air control valve can cause rough idling, especially when the engine is hot, so consider replacing them. Why is my motorcycle idle goes up and down? Your motorcycle idles rough because of rusted, jammed, or 4 days ago · If you have an intake air leak, it makes the bike run lean. After running for 150 kilometers, the problem is still there. Any ideas on what may be going on here? Mar 22, 2012 · FIXED: Rough Idle, Knocking, Engine Cutting Alright, this is my first post, but I've been scouring the internet, forums, help sites, mechanically inclined friends, and dealers for quite some time now searching for an answer to this annoying problem. Clean the throttle bodies. have been put on it. I did the full carb clean and changed mains, jets, and everything but still notta. Never have had an issue with the way it runs, always been perfect. But don't worry, you're not alone in this; many riders face this issue, and there are ways to troubleshoot it. Symptoms include, the check engine light (CEL) coming on, rough engine idle, stalling and a hissing sound. Adjust to 1250 rpm and let it run a few minutes. To learn more about reasons why your motorcycle is backfiring, see my other article here. 3. Reply reply Mar 16, 2016 · Trickle charger over night. the thing with our bike is that there is NO choke it's all electronically controlled Jun 7, 2021 · I have attached a few videos that show the idle when started cold and then hot. This then happened on several occasions. If I set the idle at this point, it will eventually drop back down and die. What happens, specifically, is it will have a rough idle that will fluctuate from 1100 to 600 rpms. My understanding is that the 203 is a mild cam. Jul 21, 2015 · The bike starts on one kick, seems to idle smoothly when cold, but will start to stumble a bit when hot, idle high and low, and occasionally a pop can be heard. Oct 19, 2023 · Also read our article on 5 Reasons Motorcycles Misfire When Hot Or Cold. Feb 10, 2022 · Guhl motors flashed ecu, yoshi exhaust, and BMC air filters. But when they're off-balance, your bike's performance Feb 20, 2024 · Experiencing erratic idle in your motorcycle's EFI system can be both puzzling and frustrating. Oct 10, 2016 · First it increased by approximately 1000 revs and then the bike stalled. This article lists some of the typical reasons a motorcycle engine sounds rough. The engine doesnt have any bad noise, just at idle. May 13, 2010 · When the temp gets up there again, pull over or go home, open the fuel cap slowly, take your helmet off listen for a hiss or swoosh sound. 5k rpm it goes away and all is good. Unlike a miss-fire on a spark plug this idle seems fine if the idle is turned up just a bit. The only way I can get it to idle fast is to ride it until the engine is hot. Dirty Throttle Body: The throttle body is the part that controls the amount of air that enters the engine. As it heats up, it drops the idle. It sounds like a car with a big cam (good sound). It would eventually sputter out and stall and the idle was really slow. havent been able to isolate the cylinder. Sep 23, 2015 · I took it home and let it run and it idles rough. Seems fine at more RPMs. Rough idling is often accompanied by vibrating and shaking, causing riders to bounce up and down in their motorcycle saddle under challenging situations. Nothing wrong. Jan 26, 2024 · Experiencing erratic idle speed on your motorcycle can be both perplexing and frustrating. Understanding why your motorcycle's idle speed is unstable is key to getting back to smooth ridin Rough Idle - Combustion takes a just a bit longer with more fuel and at lower RPM's the engine can idle rough. Motorcycle manufacturer recommendations vary, but most issues can be isolated using a Jun 18, 2008 · Second off, adjusting the idle speed doesn't change the air/fuel mixture. After sitting a few hours smooth idle until I put mi. If i give it some gas everything sounds good again until it goes back to idle. Day before yesterday it ran great, got on it yesterday and it runs like crap. However, if your bike is revving out, you should shut if off and attempt to resolve the issue or you could blow up the motor. If you do the vents may be clogged, this can cause a fuel flow problem, especially when the bike gets hot. Apr 27, 2011 · Is your bike having the same problem/rough idle to a stall during hot weather or does this happen only when its cold or hasn't been started in a while say 2-3 days. In hot weather with the parade mode on or off it idles about 900 rpm. replaced plugs, thought maybe ethenol issue. Spark Plugs Black - Carbon buildup on insulator and electrodes of plug. Jun 27, 2011 · This machine has less than 300 hrs. Thursday put the battery back in. A motorcycle with a poorly set air-fuel ratio has the potential to keep stalling out while riding. If I then shut it off and start the bike the idle is rough and nearly stalling. If vacuum is low, check condition and location of all vacuum hoses. A motorcycle idle that is a little high is not dangerous for your bike but isn’t optimal either. May 1, 2019 · Hey all, I bought my first motorcycle, a 1979 cb750k, last July. If your Indian Scout idles roughly or unevenly, it could be due to several reasons, such as a dirty throttle body, a faulty idle air control valve, a bad spark plug, or a clogged fuel injector. I May 13, 2016 · 2011 Wide Glide, 96. Please let me know if anyone has seen something like this before. Nov 30, 2023 · Your motorcycle will not idle without a choke if the throttle body is dirty, the pilot jet is plugged, or the air filter is clogged. The bike has gobs of power and always starts first kick. Oct 19, 2023 · A rough idle on a motorcycle is when the RPMs develop inconsistencies and go up and down sporadically while idling. When I bought it, I really had no idea what to look for and couldn't spot any potential issues. To the original posterfirst check your air filter. I just engaged the clutch a little bit to keep the rpms down whenever I had to stop. Feb 20, 2024 · Ever found yourself at a stoplight, your motorcycle rumbling unevenly beneath you? That's rough idling, and it's not just annoying—it can signal deeper issues with your carbureted bike. May 11, 2012 · I have a 2006 streetglide witha carb that idles rough. Post by bthacker » Mon Aug 01, May 24, 2007 · Using the 141NU102 map as a base, I can increase VE tables F&R from original to +20% in the 0%- 10% columns and get no effect on the off-idle roughness. Jan 22, 2024 · In idle, when the RPM is at 1500, this is the same moment as the failure I tried using fresh, premium gas with Seafoam. Runs great once above idle. A problem with fuel delivery, spark plug operation or metering of the air-fuel charge can cause problems at idle that may not be obvious at higher rpm ranges. I have put in additive and high test gas with no corn; still no help. the problem is the following: practically when the bike heats up the idle becomes rough, I mean, the bike runs smoothly at 1000 rpm, then when the temperature increases, it starts working the fan, idle becomes irregular and the bike turns off. Acts like enritchener or choke condition is activated. I have checked all the cables, choke, throttle, etc. I cleaned the throttle body. For a while ! Then recently, after a 100+ mile ride, this rough idle and stalling occurred all over again on the The cold side is normal, and the hot side is above normal. This will make it idle higher and better. 2K views 4 replies 4 participants last post by 86655 Feb 14, 2013 Nov 15, 2015 · It could be caused by an irregular misfire, or if the carbs are not synched and set up properly that cylinder may not be contributing fully to running at idle. Turn bars to the left, pull fast idle lever toward you, start engine. -Turning idle adjustment screw (a knurled knob in the middle of the carb rack) all the way out did not decrease idle Oct 4, 2009 · Recently began experiencing a rough running condition between idle and 2,000 RPM and hoping the collective has some insight as to cause or how to troubleshoot. Hello. A high idle on a motorcycle is one of those issues that can either slowly start to increase in intensity or it can completely surprise you with how high it is once your start up your motorcycle. I disconnected the battery (to reset the ECU ?), performed a TPS reset and all was good again. It is supposed to have a #46 pilot jet in it by the workorder that came with it, but i cannot make any change in the idle with the pilot screw. Aug 31, 2018 · Why does it idle fine when I'm starting it up (on a warm day I don't even use the choke, just start it, rev it, good to go) but after I've been riding it, it will stall if I let it idle for just a few seconds. ” Discussion Forum: 2005 Rough Idle on hot start • GL1800 Motorcycle: 2005 GL1800 1977 GL1000. You could maaaaybe try opening the choke when it's warm, and turning back the idle speed and see if the problem persists. Discuss performance Jun 12, 2012 · -After ~ 20 minutes of driving, idle would begin to creep up and eventually the engine would rev @ 3000+ rpm when I came to a stop (very bad and unpleasant). If you have a motorcycle that is sputtering, the likely culprit is the carburetor. Could be getting too much fuel, weak spark, etc. The rpm's jump a little at idle then back to normal. Make sure you check for air leaks at the manifold to head joints as well as the throttle body to manifold, and don't forget to make sure the rubber cap is still installed on the vacuum tube on top of the throttle body. It's when your bike's engine revs linger higher than normal before settling down. So I suspect that side is the problem. If your cold idles are too low I wouldn't be too surprised if the unit drops it to the point of stall. While the engine improved above 2000 rpm May 20, 2018 · The issue: It starts up easily, idles great, warms up with the choke gradually being turned off. Oct 10, 2023 · 4. canceling cylinders hasnt isolated it. There is a hot start issue with this gen gixxer as well. Understanding the roots of these idle issues could save you time an Sep 10, 2014 · I have a 03 Vulcan 1600 Classic bought in May 2014 with 6500 mi. In the Jan 18, 2013 · At a dead stop, clutch in or out makes no difference, the engines idle is well above the normal range of 1k. Link to idle drop procedure (11:30 is where he starts adjusting):https://youtu. The bike didn't shut off this time because the idle periods were short. Jun 29, 2008 · After riding it all day today in 90 degree heat it started to idle at about 4k rpms, though. Warm idle should be around 1300, I think. Yesterday when my wife put it in reverse it went dead "Engine Stalled", Started up fairly okay, Then ran fine for about 10 minutes. Jump to Latest R1-Forum is a Yamaha R1 motorcycle enthusiasts community dedicated to Yamaha YZF 1000 R1 sportbike. If it's injected, then run a bottle of fuel system cleaner through it. Just like lighting a fire, firing up that motorcycle engine requires three ingredients: Spark; Fuel; Air Jun 2, 2008 · After 15-20min of riding and the engine is nice and hot, the idle is way to fast. Heat soak from warm fuel and ethanol content can cause running problems, including rough idle, so try to minimize fuel evaporation. As you can see in the attached video, the idle RPM is unstable and causing stuttering at low RPM(below 4,000). I purchased the bike in it's current "surging" state. I use it daily. feels like a single cylinder misfire at idle or just off idle. I'm 2nd owner and had it since As soon as the exhaust valve opens and the air/fuel mixture hits the hot exhaust header, the fuel ignites and makes the loud bang sound. Mar 8, 2023 · Check the carb and manifold seals for a good seal. It may be an air leak that opens up when the bike gets hot that leans out the mixture and causes the rough idle and stalling. If it does, that's a bit more evidence of a vacuum/intake leak. So, the engine may run well at higher (RPM)s. It will have a high idle briefly before dropping off back to the normal 1k rpms. Or the hot side is normal, and the cold side is below normal. Also, the idle became all lumpy. short stops would be ok, but any slightly extended light would cause her to act up. But don't worry, you're not stuck with this problem. to/3XWP88gSpark plugs I use https://amzn. Carburetors are the heart of your motorcycle's engine, mixing air and fuel to power your ride. I will say that our bikes, as old as they are, could probably use a throttle body sync. The problem occurs when the bike is either hot or cold but it has to sit for about an hour to act up. We would like to show you a description here but the site won’t allow us. all pipes are colored equally, no cold pipe. I also replaced the fuel filter with a unit from NAPA (service manual calls for replacement at 24k miles, bike has 22k miles on the clock. be/5xPzedhLqdMV Apr 1, 2022 · hello everyone, I have a vmax full power 2001. to/3EZXw Oct 2, 2018 · For a while ! One hot day, the bike stalled while downshifting. Plastics (and metals) expand/contract with temperature, and plastics get much softer with heat. Whether it's a simple adjustment or a more in-depth fix, we'll The motorcycle engine often stalls at idle after warm up. Jun 23, 2008 · The mixture screws might be set on the lean side, but it would probably be backfiring and popping quite a bit while accelerating and decel all the time and even worse when hot. To fix this, you must regularly clean the carburetor, throttle body and replace the air filter every 12 months. Have tried different throttle body still the same. Check engine vacuum using a vacuum gauge. It is totally clean. The only way to get it back is to kill it and restart, or adjust the idle speed just slightly- and it drops like a rock and stalls. This seems to have no type of pattern when it does it other than its normally doing this when getting off the hwy or when the engine is nice and warm. If those issues aren’t the cause of improper idling, it may be an issue with a misfiring cylinder in your engine or bad spark plugs. To fix this problem, you need to locate and seal the source of the leak. Carb Cleaner https://amzn. Sometimes the bike will pop and the idle will recover. I idle for 5-10 min, and seems perhaps 80-90% better. When I bought it, the previous owner rode it over to my place and it didn't seem to have any issues with starting (warm). remove air cleaner to clean/check IAC. And the problem is often worse on a hot day. Nov 4, 2020 · Honda VF750 Magna Carburetor Diagnosis : Motorcycle Hesitation and Rough Idle. Oct 19, 2023 · However, a rough-running motorcycle engine adds insults to an injury. seemed to help briefly but went Dec 20, 2023 · Symptoms of a vacuum leak include rough idle, popping, or backfiring noises, hesitation or stumbling when accelerating, and poor fuel economy. If we stop for 20-30min and start it up again, the idle is back to normal. Once it gets over approx 2. 9 - 13. Jul 17, 2020 · So when it's hot and idling (preferably when exhibiting rough idle), a little flammable aerosol will affect idle speed as extra fuel entering the system if there is a leak. The best results are had by just waiting a few minutes, and A broad range of problems can cause rough idling in a motorcycle engine. I don’t ride it a lot for this reason, but I am not sure how to fix it and make it idle smoothly. Road beautifully when cold then it warmed up and Issue Still Present; Remapped to enable 02 sensors: observed Idle Adaption Range was at standard (it does not show in TuneECU when 02 disabled. Run an engine compression test. If the problem goes away, it's a lean condition. drained carbs and ran on high octane fuel. In no particular order I'll throw out symptoms and observations. It has been bored out to a 95 and has se 203 cams. And cold kinda depends on the weather too so it's hard to pin point. Here's the scoop: I purchased a 2005 R1 After sitting in the hot sun after previously being ridden, my 06 starts 'hard', has a noticeable rough idle and sounds like misfiring cylinders under say 2. After that its smooths right out. . be/AKjZ_jCw3cMMore fuel mixture screw adjustment:https://youtu. May 28, 2014 · But the next day It was giving me problems starting and stalling at idle. May 26, 2012 · THE PROBLEM: The bike will start fine, then after warming up (usually 3-5 minutes or so), it starts to drop in idle speed, and will eventually die. Also, during sudden and hard accelerations, there were misfires and the bike would not accelerat About 6 months ago I have had problems with the bike keeping a steady idle and the occasional misfire. Choke related questions for Backfiring, Sputtering, Rough idle, and stalling ATVs. Only get rough idle after 20-30 mi. The elevated idle happened once more after some quick riding on the highway the same night. If you start the motorcycle and it has a difficult time staying on by itself or you notice a rough sputter while it’s in a stationary position, this is a good indication of a lean mixture. I stalls on me quite frequently. Thinking sensor; but am a little confused as to whitch one effects idle. See if the problem travels from 1 to 4 cylinder. But what's really behind this mechanical mystery? Before you start worrying about costly repairs, let's dive into some common culprits. Sputtering. Occasionally it will pop and die. on it, it has developed a rough idle. bike cold starts fine, was running her for about 30 minutes today, and after she got up to 240*, the idle would get jumpy at stoplights. she feels fine under any throttle, it's just the idle, and it wasn't apparent while warming up. On start-up, will rev to 1800-2000rpm… Initially, NO CODES were Sep 10, 2006 · ok, so I'm really confused here. Not necessarily rough, but it will bounce around by like 25-50 rpm until it gets hot. If you get the bike to start with the choke, adjust your idle speed screw to keep the cycle running without the choke. That was the first unusual occurrence. zcyksk cjvqfqi drsi cupcn nuobsk myqxu lfglyp ydprb owuup uvzy nlbwed qxyby abuqryf hivs owipes