Harley twin cam high idle. I was thinking about dropping it to 900 RPM.
Harley twin cam high idle tks in advance Jordan1200 2010 Harley Davidson Street Glide 106" Stage 2 ACR heads S&S crankshaft, Fueling HP+ Oil pump and Cam plate, Fueling 543 Gear drive cams, Supertrapp SuperMeg 2 into 1 exhaust 05' RK - 510 chain drive cams (06-07 cam plate design), high compression SE 103 top end, T-Max, closed-loop with 2 sensors. it has 28k on it and has never run poorly except after sitting for a while, and i know it is the gas gumming up the carb. If your Harley-Davidsons’ valve timing falls out of sync due to a faulty cam chain, your engine compression is reduced, and your Harley won’t idle properly. i wrote power commander and got a reply, on 2002-2003 touring models, the PC is active right from the start, meaning older versions didnt kick in until the cold idle from the factroy ecu was done. Disconnect the connector from the sending unit and turn the ignition switch ON. Cable changes, possibly. I have an issue with my 2007 Ultra Classic with 44k on the odometer. LIGHT OR HEAVY BIKE. 75" OD and just over 1. Short shots are IIRC, 1. I do all of my own wrenching. then the pc took over. Previous topic - Next topic. This is a notorious problem in Twin Cam engines. Both with stock cams and with Andrews cams. Below that it will eat the battery when sitting at idle. A cam change is the only way you'll get even close. 3-14. I REALLY have to baby it for 10 minutes or so, to keep it below 60. Noise is definitely coming from the rear jug. a cold start will stay at a high idle for a long time, I now its normal but mine seems to stay there a long time, and after waiting several minutes I can ride a couple blocks before it drops to normal, I have cycled the iac with cleaner a couple times but that hasn't helped, It had an intake cough every once in a Harley Davidson Evolution and Twin Cam Touring 2008 ultra drive by wire high idle problems - roadside fix! The high idle problem that most riders are experiencing can be eliminated in most cases by allowing the bike to come to an idle (1000 rpm +/- 50) before shutting the ignition switch off. 0 3-speed auto You need to contact the server owner or hosting provider for further information. As an example, it happens quite a bit when I get off Condition: Idle varies constantly between 948 and 1062 rpm. issues this year and I've ended up with a Dan Thayer 3 stage pump and R&R plate. Clutch pack knock evident as a result. Jump to Latest 14K views I have had an high idle condition since the bike was new and the dealer can not seem to fix the problem even with the HD techies help. It is a Harley, it will rattle a bit at idle. My Vance & Hines FP3 will lower my idle, but I don't want to starve it for oil on the top end. I posted on the Twin-Cam forum asking about the choppy idle, just one reply so far confirming the idle was rougher but not "bad". In this article, I’ll explain how to reset your Harley-Davidson Idle Air Control sensor to recalibrate the idle rpm I just did a complete rebuild on mine with a fueling cam crest and high volume oil pump. Jump to Latest let off throttle to an idle, vibration decreased, follows engine rpm. Harley had determined absolutely that the new engine would not be liquid cooled. Adjust the idle mixture screw for smooth idle and readjust the idle speed screw to the correct rpm at idle - 950-1100 rpm. Adjusting the Idle Mixture Screw will adjust the idle and off-idle operating mixture. I have read that it is pretty close to the TW-6H cam. Off-idle to approximately ¼-throttle mixtures are controlled by the straight-diameter part of the needle together with the inside diameter of the needle jet, in which the needle rides. $90 an hour is crazy. NRHS - High Performance for your Harley Twin Cam, Evolution, Sportster or Buell! n65c replacement n65 CVP It is normal for many high performance exhaust systems to moderately backfire or pop when the throttle is closed from mid-to-high rpm. I'm running M1 V-Twin 20w-50, with a cooler. If I start it cold and then idle warm up normally, when it gets hot for my first run them it's around 35 - 38. While these are simple, combustion-based machines, issues with air, fuel, or spark can cause false starts and engine stalling on any HD model. (15-50wt) A forum community dedicated to all Harley-Davidson model owners and enthusiasts. Installing the jet upside down will adversely impact the fuel spray and needle metering Your idle is a bit fast more in line with a TC than an EVO. Carbs are simple and easy to tune. It will spit out the carb if it is turned in to far so it seems like it is doing something. They need a faster idle to supply oil to the top end. 2000 FXSTS 97" Discussion on V-Twin Harley Davidson motorcycles including Dyna, Electra I have replaced the spark plugs, replaced the fuel and the bike starts right up with the choke out, then after a few I can push the chock in and it will idle. Rotate ignition switch from off to ignition. 0 5-speed 1979 Mustang Ghia 5. 1978 Strokershovel Lowrider 100 inches. The low idle sounds really cool, although it is horrible for oil pressure. By the end of the season it was idling low, around 700, 750 rpm. My bike has fuelie pipes on it with cones, and an s and s shorty carb and the motor is the twin cam 88. General Harley Talk Twin-Cam Engine Harley Davidson Evolution and Twin Cam Touring My Story, the Harley has had issues with sending units over the years, so that is a logical place to start. Discussion on V-Twin Harley Davidson motorcycles including Dyna, Electra Glide, Softail Basic ignition timing is set by engine design and cam event timing and it is constantly changing during running depending on engine state. Top Contributors this Got a 2018 ultra CVO 117, idle speed high around 2000 RPMs. 2020 Road Glide Limited, Klock Werks Pro-Touring windscreen, Grasshopper drivers backrest, highway pegs, S&S Grand National mufflers, S&S Stealth air cleaner assembley. the problem i am having is once i get up to the speed In their chapter on the development of the Twin Cam engine, I remember reading about the following. 5:1: Medium 10:1: Heavy 9. It is making a high pitch whining noise that decreases and increases as the RPM's change. SMF 2. it idles and starts fine, and when going b#**s wide open. I was thinking about dropping it to 900 RPM. Started by Ridiments101, January 17, 2019, 02:55:56 PM Harley parts guy was really no help. You will get used to it, just nature of the beast. I checked gauges and noted the oil pressure gauge was near bottomed out I have a 07 with 129800 miles on and I have had the same noise along with a lot of other noise from other things. Turn kill switch to run. -113” TC in my ‘03 Dyna 570 cams 1050 idle rpm-definitely don’t recommend the lower rpm’s for idle on the M8 or a High Performance Harley-Davidson Motorcycles For EVO and Twin Cam engines: Big Twin Idle Speed. The guy I bought it from assured me that all factory recommended maintenance had been done at the proper intervals but nothing is confirmed. Took the bike in and the Harley shop found a computer glitch. It will have a high idle briefly Turn ignition switch to off. Timing at idle varies. General Harley Talk Twin-Cam Engine Harley Davidson Evolution and Harley Davidson Evolution and Twin Cam Touring High mileage 103s. The latest SE pump claims to be a further improvement; the following is taken directly from Harley's description in the catalog: Harley Davidson Evolution and Twin Cam Touring. If I ride it, then stop for a while and the engine is still a bit warm, then pressure works it way Most of the time the bike idles a smooth 1000 rpms. A 42 was stock for that scooter, and would be lean today due to the corn juice in the gas. Replace the stock Harley Twin Cam oil pressure relief spring. She's got 43,000 on the odometer. Cam Chain Out of Sync. 03 springer 40k miles stock,noise at idle on up light knocking,seems to be top of front jug. You could also check the integrity of the twist grip sensor that feeds throttle position to the ECM. Welcome to HarleyTechTalk. I did a thorough cleanout of the cam plate passages. bike What I was driving at with my previous post is that when you change to a longer duration cam you can hear it at idle, the engine begins to "lope". Also there is no more noise, either at idle or at high speed. Before I had any motor work done on my stock 99 FLHRCI EFI TC88 with 65k miles, its oil consumption was very reasonable, maybe a quart per 4K miles. It's intermittent but has been occurring more and more. 5, cruises at 14. I see that there have been many discussions of the infamous valve train noise of a Twin Cam however I refuse to accept this as it is annoying the sh!t out of me. IAC Idle Air Control motor module for Harley Davidson motorcycles. March 02, 2025, 03:35:48 PM. This engine was Harley’s go-to from 1998 all the way to 2017. Some days I tjink I'd prefer to have an injected bike but most I don't. 5. Shut off the bike and start it , just make sure you do not twist the throttle. It’s the company’s second engine that utilizes dual cams to operate the valvetrain. What I have noticed is what sounds like a fairly loud lifter noise, only when its hot and mostly at idle. I'm kind of believing I have an intake leak, but not quite sure. Bolt-in cams have shown 80+ rear-wheel horsepower; Smooth idle, broad torque band; Runs best with low restriction exhausts (2200 Harley Davidson Evolution and Twin Cam Touring 103 heat solutions. 1996 FXDS-CONV S&S E. Hitting the throttle only made it rev higher and return to Upgrading your Harley-Davidson cam can have a cascading effect on other aspects of engine performance, like improved cylinder filling, better combustion efficiency, and optimized exhaust scavenging. Those are real general numbers, but a lot of bikes I tune like those numbers. torque without having to 'go crazy' with high compression and wild cams. But I'm starting to notice a surge in the idle. Normally idles anywhere from 980 rpm to 1050 rpm after motor is warm. Bought a 5/16" wedge lock anchor and it worked perfectly -- as well as if Harley had designed it as a special tool. did this about 3 times. Bike has 10,000 miles, previous owner is deceased so I can't Harley Davidson Evolution and Twin Cam Touring 103 vibration. I know the miles are low, and the bike is in perfect shape, still looks new, but the age probabally means some things are just aged. Does this sound right? Should I quit riding it and get in in for service now? Will it do worse damage if I have an 04 road glide. Discussion on V-Twin Harley Davidson motorcycles including Dyna, Electra Glide, Softail, Sportster V-Twin with a single butterfly of 50 - 55mm, lots of sonic pulses will come out of an open breather element. Hi, I have an '01 fuel infected Roadking. Big plus 09 Ultra has no cats thanks be !!!! V-Twin Harley Davidson forum. 22,000 miles and meticulously taken care of. Adjusting the mixture screw out to far will result in an overly rich fuel mixture in the low RPM range. Come join the discussion about performance, modifications, troubleshooting, builds, maintenance, classifieds and Some people have been bumping idle up. lol. I've only got about 50 miles on the mods, so this is just my first impression. com You can try to unblock yourself using ReCAPTCHA: 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. 0. Your blocked IP address is: 20. 3 or So and wot at high 12's until it levels out in the low 13's. m. Harley Davidson Evolution and Twin Cam Softail rough idle and dies after warm up If you can keep the bike running with throttle input, it may also be an Idle Air Control issue. This article lists the most [] Just bought a 2012 Ultra Classic 103" . The dealer says it "may" be a cam bearing and wants 3 hours labor to diagnose. ( It all let go in Sturgis this summer) I replaced everything ( EV37 cams, Feuling Oil Pump and Cam Plate, Fueling Lifters,Crain Gear Drive, Crane Adjustable Push Rods) Bike runs very strong.
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