Reply. Release the brake to let it idle to check the idle RPM properly. Pilot jet, or air passage clogged. Post by scooter3oy onJan 23, 2009 at 3:26pm. The best idle speed really depends on the type of engine and air to fuel ratio. If the IAC motor's vacuum port is leaking, this can be another cause of high engine idling. What Is Engine Idle . Discuss the GSX-R600, GSX-R750, GSX-R1000, and GSX-R1100, and more! Honorary MOOT Member; MOOT Super Contributor; Posts: 4312 '94 Red Magna, '02 Black Magna; Re: Idle staying high #11: May 21, 2009, 09:54:35 AM. The needle is where zoom put it. 2011 Toyota Camry (Sandy Beach Metallic) 2005 Acura MDX Touring (Billet Silver Metallic) Save. Another sign of lean running is the "hunting idle" where the motorcycle revs up randomly, changes RPMs, or takes. Feb 15, 2007. The idle speed hunting like that is not normal. It would run rough when cold on choke and get better as it warmed, then the idle was too high and I adjusted it down and it was fine when at a warm regular riding temp. The oxygen sensor will detect the extra oxygen that is entering the engine through the vacuum leak and will signal . An intake leak can contribute to a high idle. Screw the air screw in and out until you get the highest idle speed. 29 votes, 13 comments. Often it is the hoses connected to the vacuum system that become damaged, leading to an imperfect vacuum. Should you have your bike hard right or left at low speed (walking speed) and engine dies, more than likely, the bike is going try to fall. By opening and closing a valve to the vacuum port at set intervals, the IAC motor sets the idle speed. Idle level too high A high idle level is not dangerous for your motorcycle, but it have a few disadvantages and it's still a sign that something is not right. I bought a bike last year, and it seems to have an intermittent high idle that acts weird. The oxygen sensor will detect the extra oxygen that is entering the engine through the vacuum leak and will signal . Share. by Kyle McFadden. . While in between shifts or much worse at idle the revs will not settle until sitting for a minute or two, at idle the bike still . Even when being very careful, it's easy to create a vacuum leak completely by accident. Save. Once the bike cooled after you stopped for say 30 minutes it wouldn't idle correctly and then playing with the idle adjustment corrected that until the bike was warm again and . 3. Most cars idle right at 750 rpm. That should reset your original throttle position. Turn Idle mixture screw clockwise, slowly leaning mixture until engine starts to die. 81.2k members in the motorcycle community. Throttle cables holding the slide up a bit. While the bike is warming up the RPM can be a little higher than at operating temperature. The only way to get it to stop it to come to a complete stop and pull in the clutch and it will go back down to the normal idle. The true idle speed is not apparent until the motor is fully warmed up and the choke (enrichener) is completely off. 4- "crack" 4-butterfly bolts and fully remove. A high idle that is slow to come down is generally due to a weak mixture.Weak mixture may be due to a too small pilot jet and fitting pod air filters but is . 1985 Yamaha phazer 480 carbs are clean but will hunt for a idle then idles too high, like it is going to runaway. It has only crept up real high on me once during a ride. 11.4.4 Idle is too high on Startup; 11.4.5 Idle Dips Down After Throttle Blip; 11.4.6 Idle Drops Down After Throttle Changes; 11.4.7 Motorcycle Idles at 2000-3000 RPMs; 11.5 Backup and Restore. Next, check if there are any, diagnostic . Too much transfer slot exposed. Excessive vibration will do the same thing, vibration can cause crank shafts, and rods to brake. The air screw can be located on the right or left side of the carburetor. Sometimes its not there at all. Read about the test, springs and lubrication below. Hanging idle - The engine idles high and then drops and stalls. Suzuki GSX-R Motorcycle Forums Gixxer.com. It still runs a tad lean, but not as lean as stock. 300. Carburetor holder loose. Pilot passage clogged. Reset idle to recommended settings and test ride motorcycle. It is fuel injected so not as easy as a carb model to troubleshoot. If I start it up and go after about 5-10 seconds of idling, it will idle real high at about 2k when I pull in the clutch/go to slow down. I've adjusted to air mix screw back and forth. To reset your idle setting back turn the ignition switch on for 10 seconds off for 10 seconds (do not start the engine), repeat a total of 4 times. Requiring excessive amounts of choke to run/start. 11.5.1 Why Should I Make a Backup? Ignition timing needs adjusting. It changes the idol but doesn't seem to improve things when I try to rev it up. Blatant copy & paste that may be of help and an addition to your printed manual. by Kyle McFadden. Step 1 - Warm the motor up! It idles a little fast when cold and the warmer it gets - Answered by a verified Motorcycle Mechanic. Does your motorcycle idle funky or not at all? The leak could be sourced at the seal, or more often, in one of the attached hoses. DIAGNOSE - ENGINE IDLES TOO HIGH. 3. It's intermittent, but has been occurring more and more. IP logged hootmon. Then lower the idle speed with the idle screw and do it again until you get the best idle. Starter plunger stuck open. Extremely lean motors can also stall out completely when given some light throttle. A motorcycle idle is usually set between 1000 and 1500 RPM when the engine has reached it's operating temperature. When you pull it towards you, the idle is supposed to raise in rpm. 11.2.3 MPG Decreased After Flashed Motorcycle 11.2.4 High Altitudes Performance Decreased 11.3 Issues with Auto Mapping Sessions Result 11.4 Idle Issues 11.4.1 Engine Running on One Cylinder 11.4.2 Engine Struggles to Idle at a Stop Light 11.4.3 Irratic Idle on Startup 11.4.4 Idle is too high on Startup 11.4.5 Idle Dips Down After Throttle Blip A forum community dedicated to Victory Motorcycle owners and enthusiasts. 2005 Harley Road Custom, idles too high set DTC code P0505. On the visit I asked to have the throttle bodies synced and requested the idle be set up around 1100 where it belongs. 2000-2200 RPM is about the highest it should idle when cold, and only after a cold start. issue i'm having is when starting from cold, the idle climbs really high, like to 3k+ RPMs causing the rear wheel to spin..after 5-10 minutes of riding, the idle eventually drops to where i've set it, ~1,800 RPM. The slip ons went on a while ago, while the A/C and remap were about 5000 kms ago (pretty much just before I left Mtl). The most common result of this is the " high idle " or the erratic and aggressive noise that you hear when the car is idling. It runs ok (about 1200 rpm), if I give it more gas with the choke (about a 1/4 of the way back to choke). I went up 2 on the intermediate. This is after the bike is warmed up, and the choke is closed. Be polite to your fellow's and keep … Fuel pressure regulator may be operating at, too low of a pressure and would need to be replaced. White or light gray muffler end pipes. Again, too high for idle. I can use the idle control to make it rev higher, but not lower. SYMPTOM SUMMARY The engine idles too high.. USUAL CAUSE The usual cause of abnormally high idle speeds are vacuum leaks or an inoperative idle speed control motor. The engine runs on rich mixture does not have the smooth and crisp acceleration, in fact the acceleration tends to be flat and uneven. The leak could be sourced at the seal, or more often, in one of the attached hoses. 11. When a motorcycle is idling high, that means there is too much of an air/fuel mixture at a low speed or in neutral position. The mechanical advance not working properly. I'm telling you, having this idle set higher than what it was is fantastic. It was revving high and when I shut down the enrichment it was still high. Save Share. Only show this user. Hi guys, I have a question about my idle or rpms staying high after rideing around and maintaining the same speed for a while. Some have suggested applying grease to the ends of the threads to avoid shavings falling. 29 votes, 13 comments. As an example, it happens quite a bit when I get off the fwy having rode for about 15-20 minutes at high fwy speeds. Step 4 Record the reading and move the tester to the next spark plug hole. The engine is overheating, and the cooling system needs repair. 94 R1100 Idle too low. An intake leak can contribute to a high idle. 11.4.4 Idle is too high on Startup; 11.4.5 Idle Dips Down After Throttle Blip; 11.4.6 Idle Drops Down After Throttle Changes; 11.4.7 Motorcycle Idles at 2000-3000 RPMs; 11.5 Backup and Restore. Reasons for a Rough Idle or High RPM 1) Bad Spark Plugs 2) Bad Ignition Coils/Wires 3) Vacuum Leak 4) Carburetor Issues 5) Dirty Fuel Injector 6) Clogged Air Filter 7) Bad Idle Air Control Valve 8) Incorrect Cam Timing 9) Incorrect Ignition Timing Things to Remember Reasons for a Rough Idle or High RPM Turn RPM adjusting screw to obtain an idle speed of approx. S&S Carb Tuning Tips. At an idle it will either idle high at just under 1800 rpms or stall out. 2.25 turns seems to be the sweet spot, as far as idol. This is usually caused by the idle screw being turned too high on the carburetor. it stops at 3000. Always adjust your idle speed with the motor at full operating temperature; that means it has been for a ride of at least 10 minutes. Start engine and run until slightly warm (about 1 to 2 minutes). When I bought it is was hard to start and ran rough. Other times, when the bike is in neutral, or stopped with the clutch in, the idle will rev to 4-5k until I release the clutch. 2005 Victory Kingpin. As mentioned above, the most common cause of the stalling problem is that the motorcycle engines are forced to run way too lean - but of course there is an array of other possibilities that can cause a warm engine to stall: - Air/Fuel ratio too lean (By far the most likely cause) - Engine idle level set too low (You will not be allowed to . Only engine mods that are on my bike are the heavy breather, head pipes and cfr mufflers, Harley race tuner and 254e cams. 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