Harley High Idle When Hot

And raising the engine rpm while sitting still won't do it, since it takes several minutes of 12 volts to get the heat built up in the grips, it is not instant heat. The speedo is fine when all this happens and it only happens one I've been up to speed for a bit. In high temp mode the engine RPMs drops to 950 and the ECU goes to open loop mode to richen the fuel mixture to 12:1 in an attempt to cool the engine off. If it does, a fuel pump with more capacity may be required. Gearing can also be a significant factor. In the Power Commander Control Center Software, go to menu “Power Commander Tools” and look for the tool to calibrate the throttle. Welcome to Harley Chat Group. The Harley-Davidson Sportster is an American motorcycle that was introduced in 1957 as a competitor for the high-performance bikes being produced by the British that were selling in the United States in huge numbers. It has only crept up real high on me once during a ride. An engine that will pull strong from idle and propel the bike to any legal or illegal speeds chosen within some reasonable limits. The rest of the text below contains lists of the possible causes if the idle level on your bike is too low or too high. now slowly turn the idle speed screw in until the engine just barely runs almost stalling. Shop for an idle air control valve at your local AutoZone store or online, and benefit from our customized selection. With a thousand of Harley cams available, from different manufacturers, making the correct choice can sometimes be over whelming. WARM-SLOW IDLE SPEED ADJUSTMENT FOR ALL MAGNETTI-MARELLI. The down side is that the FK-87 would idle like a poorly tuned Harley (due to reversion) and have very poor off idle performance (due to low port velocities at low-to-mid RPMs). Le Mieux Pro-Sorb Plain Dressage Square. Put the car in gear and apply slight load, (AC on) and set the Idle as you like it. So, something to think about on. If cold idle speed was adjusted, install air cleaner backplate. This is where we will spend some time. 0 psi; if the vehicle has an adjustable fuel-pressure regulator, set it to 4. Download a Fatboy, Roadking, Sportster, Softail, DYNA, and Touring repair manual in seconds. Brian has served 2 terms as President of the prestigious Harley-Davidson® Dealer Advisory Council. (even in high RPMs) until that special warm/hot point. NAPA is your trusted source for automotive parts, accessories & know how for your car, truck or SUV. Fuel system Next check for fuel delivery through the fuel. As much as we love to see skin, there’s something about a girl in leather motorcycle gear revving up a bike that gets our engines going. 80457S 600 CFM won't idle! I just installed a refurbished Holley 0-80457S 600CFM carburetor on my 1968 Mustang 289 with Auto Transmission and I can't get it to idle properly. OK here goesI'm not a mechanic but my husband is and he's tried explaining it to me this way: the angle of the 2 cylinders causes the uneven firing which we hear at idle. 00 Faded Glory Denim Women OuterWear Vintage Faux Fur. Diagnosing low charging voltage. I strapped a temp guage on my leg and within a 30 minute ride the heated on my legs reached 130 degrees. that I wanted to go. Re: Deceleration Popping explained I am glad I read this, As you can see in my signature that I have a 91 XR250R. A Basic Idle Tuning Strategy. When I run at highway speed, everthing seems normal. If cold idle speed was adjusted, install air cleaner backplate. The service department at Brian's Harley-Davidson® Langhorne, PA offers state-of the-art technology and effciency. 2008 – 2012. Check for intake leaks, Get the motor hot and set the idle a little high. The kit includes a chrome alternator with black regulator and instructions. The vacuum gauge shows 19" steady when warm. The instantly recognizable Harley logo’s origin is a bit of. harley davidson talk forums. new 2013 Harley trike runs so hot that I cannot. now slowly turn the idle speed screw in until the engine just barely runs almost stalling. All settings are correct, neither the fast idle or hot idle screws are engaged. Long time riders and Old Glory clients, Gary and Arliene A. bridgeton high school - $37. The answer to that question depends on the cause of the high idle. Silver Sport Transmissions offers TREMEC TKO 5-Speed, TREMEC Magnum 6-Speed, and A41 4-Speed Automatic PerfectFit conversion kits for GM, Ford, Mopar & AMC. Ron Fehring’s LUV truck is a tribute to his brother, while Jeff Kurtz converted his high school ride into a real drift demon. A quick back-o'-the-envelope calculation shows that a 2 liter engine turning at 4,000 rpm will suck in 4,000 liters (that's about 1,000 gallons) of air every minute. Dry Sump Oil Pump Technical Information. 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. After about 10 minutes when the engine is warmed up and I come to a complete stop the idle tends to fluctuate. Harley Not Starting – Read More 3. On a lot of newer vehicles you can't adjust ignition timing (or idle speed, or nearly anything else) because it's all controlled by the computer. Harley-Davidson® Parts: Harley® and Harley-Davidson® and other model names of Harley® motorcycles are used as a reference only. We have the largest selection of all models and the friendliest staff. If the engine was idling above 1000 + or- 50 rpm when it was shut off, it will want to return to that speed when it is started next time. Idle Control Valve -- clean vs. The trouble happens in traffic or any long periods of the bike running and standing still. Hobby’s Victorian Wooden Doll's House 1980’s Collectible, Mizuno Wave Ignitus 4 MD size 7. The new valvetrain design comes with an impressive list of proposed improvements – more power, better efficiency, lower idle, less heat, and less noise. When I was leaving, the bikewas idleing a little high, 1150 RPM. Re: Deceleration Popping explained I am glad I read this, As you can see in my signature that I have a 91 XR250R. Progressive suspension is the best way to lower your motorcycle. THE NEW 2020 H-D ® MOTORCYCLES ARE HERE. Start bike, bring to operating temperature. 2007 Harley Davidson Electra Glide Ultra Classic FLHTCU/I Parts & Accessories at RevZilla. Controllers Assitant at Hot Rod Harley Davidson Greater Grand Rapids, Michigan Area Retail. " This fall the icon gets. you will get some engine heat while at idle but none once you’re rolling. WARM-SLOW IDLE SPEED ADJUSTMENT FOR ALL MAGNETTI-MARELLI. Wanting to improve reliability and longevity, at 10k miles I purchased the SE Cam Support Plate with High Volume Oil Pump. It is said that Harley was so impressive there were occasions where Columbus East High School frequently drew more fans when he was a senior in 1914 than Ohio State did that same season. This conversion kit has high power output, 17 amps @ 1000 rpms, billet housing for strength and accurate alignment, and a stress proof shaft which is stronger than stock. After doing the clutch, the idle was fine as I had to test the clutch engagement. the idle jet is. The heat from the engine makes it impossible to enjoy. Play thousands of free web and mobile games! Discover the best shooters, role playing games, MMO, CCG, tower defense, action games and more!. We carry the latest models from Harley-Davidson®, including the newest Touring, Softail, Dyna, Sportster, Vrod and Street bikes. The cold advance solenoid also aids in purging air from the injection pump. By the way, bart is full of s**t as. I strapped a temp guage on my leg and within a 30 minute ride the heated on my legs reached 130 degrees. Ride Safe!. Your Harley-Davidson flathead 45, flathead 80, or knucklehead engine will not develop its full power without improving the cam. Chicago's Wild Fire Harley-Davidson® in Villa Park, Illinois is the most accessible Harley Dealership in town!. The engine runs fine when it's cold. If cold idle speed was adjusted, install air cleaner backplate. Harley-Davidson Motorcycle Recall Issued for Brake Problems AND THE THIRD TIME THE BIKE WENT TO IDLE WHEN I WAS DOING 60 ON THE EXPRESSWAY. No, this is not plagiarism! If you have read a slightly less polished compilation on the Internet here, don't write me a nasty e-mail saying that I stole this please!. You can also sign up for e-mail notification when such bikes are advertised in the future. I've also proven that it would take me anywhere in the U. You also need to jet your carb for your aftermarket pipes. The rest of the text below contains lists of the possible causes if the idle level on your bike is too low or too high. Liquid Cooled Motorcycle Engines Posted by: YouMotorcycle in Comparison Articles , Top Stories December 19, 2015 26 Comments One of the considerations to make when buying a motorcycle is the difference between air cooled and liquid cooled motorcycles. If you are driving in high altitude areas try using a higher octane/grade of fuel. OK here goesI'm not a mechanic but my husband is and he's tried explaining it to me this way: the angle of the 2 cylinders causes the uneven firing which we hear at idle. High Point is known for its furniture, textiles, and bus manufacturing. Owned and operated by Dale Rhoads, and part of Defcon Powersports, we offer the largest selection of Harley-Davidson® motorcycles, clothing and accessories in Oklahoma. appropriate FLT Models Service Manual. You don't want a correct idle speed when cold. Oil Pressure Tech. With a top speed of 70 miles per hour and a maximum swing height of 15 stories at a 120-degree angle, HARLEY QUINN Spinsanity will be the tallest, fastest and most extreme pendulum ride in all of DC, Maryland and Virginia. Golf Cart Forum for Electric Golf cars, Golf Cart Lift Kits and Custom Golf Cart Parts and Accessories. Ignition Timing for Modified Engines An often neglected but important area when tuning an engine is the ignition system. Bring to a boil over high heat, then reduce heat to a simmer, stirring frequently, until very juicy, about 10 minutes. We carry the latest models from Harley-Davidson®, including the newest Touring, Softail, Dyna, Sportster, Vrod and Street bikes. Reply; Herman March 25th, 2016. Some of you simply hav. An American-bred Harley-Davidson® dealership located in the heart of southern New Hampshire, Manchester Harley-Davidson® is your go-to source for any and every Harley-Davidson® model you need. A Basic Idle Tuning Strategy. Your source for the best motorcycles, parts, service, and fun. As long as it comes right up when you bring the RPM’s up, I wouldn’t worry about it. For proper adjustment, always check/set cold idle speed. It can be cleaned using these steps. ADJUSTMENT on page 1. This will help keep your bike running cooler in extreme temps. The idle air control valve is a component that interacts between an automobile’s computer and the throttle body. Roanoke Valley Harley-Davidson® is a Harley-Davidson® dealership located in Roanoke, VA. After finally getting my motorcycle running again, I noticed it get a very high idle when engine is hot. The factory programming may not provide enough idle speed when the A/C is on, when the alternator is under high load or when the temperature is extremely hot or cold. Fuel system Next check for fuel delivery through the fuel. This is often the case on higher mileage engines. harley davidson talk forums. Took off for Van Wert and stopped on the way for some grub. Low Voltage at Idle: On vehicles without a battery, often the voltage at idle is much less than 12 volts, so don't expect to get normal heat from the Hot Grips® at idle. International Orders: Ronnie’s Harley-Davidson can NOT and will NOT ship any OEM Harley-Davidson items outside the United States. adjustment before proceeding. JK regards the city as the "Furniture Capital of the World" and it is called "North Carolina's International City" due to the semi-annual High Point Market that attracts 100,000 exhibitors and buyers from around the world. engine run-on, dieseling -- ro-101 DIESELING, that nasty tendency of an engine to continue to run on, coughing and sputtering, after the ignition is turned off and there is no more spark. The original stripped-down hot rod bagger. A little less than two weeks until Halloween, and you don’t have a costume idea, do you? Before you cop out and buy a Harley Quinn costume from Hot Topic, consider letting the stars guide your path to Spirit Halloween. In high temp mode the engine RPMs drops to 950 and the ECU goes to open loop mode to richen the fuel mixture to 12:1 in an attempt to cool the engine off. 5:1 with aluminum heads. This will help keep your bike running cooler in extreme temps. If cold idle speed was adjusted, install air cleaner backplate. As Cycle World put it: "If ever an engine inspired religious fervor, this is it. High mile engines will always lose oil pressure, especially at idle. High School Diploma, N/A. High Performance. I do notice when going through samll towns it heats up a bit, but probably from the high idle when. To test the Main Jet, do a high gear roll-on from 50-mph to 70-mph. In addition, we offer a “High Efficiency” inner wire for use on clutch cables. up speed or completely stalls. THE NEW 2020 H-D ® MOTORCYCLES ARE HERE. It is formulated specifically for Harley-Davidson air-cooled motorcycles. Simi Valley Harley-Davidson in Moorpark, CA is the largest new and used Harley-Davidson dealer in Ventura county. this will learn it so it wont react to old settings. Now you have your idle speed set in a pretty good place. You can easily estimate monthly payments, get insurance quotes, and set up price alerts for the bikes you’re. If you have no high idle, check for voltage at both terminals of the cold start switch just behind the thermostat housing. Click here to find the right Harley-Davdison® today. Harley-Davidson ™ Gift Cards issued from H-D ™ Genuine Rewards point redemption do not expire. My motorcycle has recently started idling very low. We offer the finest in parts, service and accessories, and proudly serve our neighbors in Belton, Nolanville and Troy. Set idle speed to desired RPM. Intended for performance hot street/strip and performance marine applications, these profiles have a moderate lope at idle and offer an extended rpm range with emphasis on upper bottom to top end power and a strong mid-range. This is often the case on higher mileage engines. 22, 2017) – To celebrate Harley-Davidson’s 115 th Anniversary year, the Motor Company is launching a custom revolution: Eight all-new Softail ® models that merge the hard-riding performance of the Dyna ® line with the unparalleled custom look of the Softail line. Dieseling is a common problem with high compression / high performance engines, especially in warm weather or when the engine is hot. Coopersville High School. when you start your bike it should go high idle for approx 5 sec and gradually come back down to around 1100 rpm as iti warms up. As explained in the Cam Perfomance page, slow opening and closing contributes to poor idle and off idle performance and poor low speed torque. When the processor within a computer is idle, it has a high System Idle Process in the CPU column, often in the 70's to 90's. Probably the most common problem that causes idle problems in multiport fuel injected engines is a carboned-up throttle body. In other words, adjust the PWM current limit before taking the car out on the street where injector pulse widths become high. Review the article on Sticky Valves. A high idle in your car can cause you to worry. Took off for Van Wert and stopped on the way for some grub. The brand of motorcycle oil we recommend for break-in is "Spectro". Most of us will need to know how to start an engine that has sat for a while Many of you will get a hotrod with an engine that hasn't been run in a long time. I have an 2001 Nissan Maxima, 6 cylinder. It has been expanded to include more history of the Shovelhead years as well as other features to help spread the word of the best HD's on the road. Both conditions can cause a P0171 lean code, rough or unstable idle and sometimes even a stalling condition. Do you want high-end performance or low-end torque? (You can’t have both. bridgeton high school - $37. You don’t need to have a deep understanding of the Harley Davidson EFI system to use MyTune. 2020 Harley-Davidson® Street Glide® THIS IS WHERE HIGHWAY MEETS THE STREET. Customers wanted a new engine that has more power, runs cooler, vibrates less at idle and is narrower between the legs, yet still has the iconic look, sound and feel for which Harley is known. Order the part with stock number in hand. As long as it comes right up when you bring the RPM’s up, I wouldn’t worry about it. Replace Intermediate Jet as necessary—smaller is leaner, larger is richer. Looking to buy 22650aa182 Windsor? We feature a huge array of 22650aa182 windsor and other relevant listings. A few misfires are to be expected under these conditions, and should cause no major performance problems or significant increase in emissions. When the engine seems to rev up on its own while you are at a standstill, you may wonder if it's a sign of trouble that needs the attention of a mechanic. we DO NOT use a power valve in drag race engines or hot street cars. 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 increased heat leads to a viscosity which in turn affects the oil’s lubricating qualities. 2020 Harley-Davidson® Street Glide® THIS IS WHERE HIGHWAY MEETS THE STREET. The document has moved here. Make sure you've connected things properly. It was developed by a home tuner for home tuners. It can, in fact, reach temperatures that are a maximum of 240 degrees Fahrenheit. We carry more Harley-Davidson products than any other aftermarket vendor and have them all at the lowest guaranteed prices. Now you have your idle speed set in a pretty good place. CLUTCH TROUBLESHOOTING An automotive clutch normally provides depend-able service for thousands of miles. Probably the most common problem that causes idle problems in multiport fuel injected engines is a carboned-up throttle body. The throttle is all the way closed, there are no apparent vacuum leaks. 5:1 with aluminum heads. Click here to find the right Harley-Davdison® today. If you want to save to a personal computer, you can download this image in full size. Long time riders and Old Glory clients, Gary and Arliene A. After finally getting my motorcycle running again, I noticed it get a very high idle when engine is hot. On a lot of newer vehicles you can't adjust ignition timing (or idle speed, or nearly anything else) because it's all controlled by the computer. you will get some engine heat while at idle but none once you’re rolling. You may not redeem Points, and you will immediately lose all of your Points, if your Account is closed to future transactions (including, but not limited to, due to Program misuse, failure to pay, bankruptcy, or death). The vacuum gauge shows 19" steady when warm. We also have parts, upgrades, kits, marine and industrial units, guides, instructions, and more. High Idle On Start-up. Harley-Davidson® Womens B&S Crystal Bezel Black Dial Chain with Leather Cuff Watch 76L184 By Bulova. Our Saddlebags for Harley Davidson® are durable, reliable and easy to mount. We have the largest selection of all models and the friendliest staff. We can help with that too ― browse over 300,000 new and used motorcycles for sale nationwide from all of your favorite manufacturers like Harley-Davidson, Honda, Kawasaki, Suzuki, Yamaha, BMW, Victory, Ducati, Triumph, and KTM. its been great, bike runs cooler and uses less oil between changes. You may not redeem Points, and you will immediately lose all of your Points, if your Account is closed to future transactions (including, but not limited to, due to Program misuse, failure to pay, bankruptcy, or death). The selection committee reveals what it believes are the top 25 teams in the country on Tuesday. With a thousand of Harley cams available, from different manufacturers, making the correct choice can sometimes be over whelming. 2008 Harley-Davidson XL 1200C Sportster 1200 Custom. Leave it be. Passenger comfort, hot legs, from the rear cylinder and exhaust are usually the issue. It has been expanded to include more history of the Shovelhead years as well as other features to help spread the word of the best HD's on the road. What is a rough idle? When your car is stationary, your engine should idle smoothly at around 1000RPM, and give off a constant even sound. 7:1 in closed loop mode. At IDLE, there should not be any more than 5. Shut off the engine and turn the idle mixture screw out about 3 or 4 turns out. If you need to know the best cam for a Harley, then you have come to the right place. A Harley engine repair manual is a book of instructions, or handbook, for learning how to maintain, service and overhaul the Harley motor to factory specifications. Chicago's Wild Fire Harley-Davidson® in Villa Park, Illinois is the most accessible Harley Dealership in town!. The engine stays idling at about 1000 RPM. this will learn it so it wont react to old settings. Our Saddlebags for Harley Davidson® are durable, reliable and easy to mount. Harley CV Carburetor reference diagram. We offer new and used Harley-Davidson motorcycles. adjustment before proceeding. On startup when the engine is cold, the DME temperature sensor tells the DME computer that the engine (coolant) is cold. If the valve fails or has any issues it can cause the idle speed to be thrown off. Just a few things to look at. , to sell his automotive business to purchase a Harley-Davidson® franchise. The instantly recognizable Harley logo’s origin is a bit of. Harley-Davidson Motorcycle Parts “Iconic” is not a compliment that can be given lightly, and rarely at that, but it is one that could not be more fitting for your Harley. Try solution A. Mile High Harley-Davidson Aurora is Colorado’s premier Harley-Davidson dealer serving Denver, Aurora, and northern Colorado. Verify carburetor is set to stock settings: a- Idle mixture screw, 1 1/4 turns from lightly seated. 2,600+ stall converter, 3. NCAA volleyball 10/6/2019: Red-hot Wisconsin sweeps at Nebraska, Baylor beats Kansas State, Stanford wins at Oregon State, BYU sweeps St. No exceptions. 14 Michigan plays at Maryland after posting an impressive win over Notre Dame. Here is your ideal costume, astrologically. Rommel Harley-Davidson® is a network of three dealerships in Annapolis, Salisbury, and Smyrna, DE. Le Mieux Pro-Sorb Plain Dressage Square. Silver Sport Transmissions offers TREMEC TKO 5-Speed, TREMEC Magnum 6-Speed, and A41 4-Speed Automatic PerfectFit conversion kits for GM, Ford, Mopar & AMC. this will learn it so it wont react to old settings. The low oil pressure issue at a very low idle level is a genuine risk. Red Rock Harley-Davidson®, Southern Nevada's only Platinum Award Winning Dealership, is the best place to rock with 104,000 square feet of pure Harley®!Red Rock Harley-Davidson® motorcycle dealership sells and services new and used Harley-Davidson® motorcycles, parts & accessories, and MotorClothes® apparel to motorcycle enthusiasts in Southern Nevada. As long as it comes right up when you bring the RPM’s up, I wouldn’t worry about it. Shop our large selection of parts based on brand, price, description, and location. Lubing things up with Armor All and warming things up gently with a hot air gun can help. Some H-D® part numbers are also used as reference only. From its look, to its sound, to the way you have tricked it out, it could only be one brand of motorcycle, even if the name wasn’t plastered on its tank. GMC vehicles have power to get the job done. Hi Bill, Standing at idle for how long? 324-340 not bad and if you are driving down the road it would be cooler. Performance Cams. High School Diploma, N/A. On subsequent engine restarts the engine dropped immediately to the same idle level as the end of the training - lending credence to the fact the ECU is actively learning the idle position. I can run at about 45 mph in 3rd gear at idle. 1-15 of 24. 2001 HARLEY DAVIDSON SUPER GLIDE IDLES GREAT WHEN MOTOR IS COLD WHEN YOU RIDE 3 OR 4 MILES IT IDLES HIGH DO I NEED TO USE THICKER MOTOR OIL. It'll give you a "false high" due to. See AIR CLEANER, INSTALLATION, in the. ADJUSTMENT on page 1. WATCH OUT!. I also tried to attach a spring to the idle screw mount to make sure its closing but it HIGH idles!!! Besides that it seems to run really good down the. 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. HAMPTON — While most students in high school drawing and architecture classes work only with imaginary problems taken from textbooks and other coursework, the students from Hampton High. As much as we love to see skin, there’s something about a girl in leather motorcycle gear revving up a bike that gets our engines going. Oil Pressure Tech. And raising the engine rpm while sitting still won't do it, since it takes several minutes of 12 volts to get the heat built up in the grips, it is not instant heat. Harley Started to Misfire – Read More 4. Ignition Timing for Modified Engines An often neglected but important area when tuning an engine is the ignition system. If the engine temp gets high, the ECU shuts off the rear cylinder (only at idle) and idle speed will drop a. the tank has got it spot on,its most likely air being drawn in to the exhaust through a pin hole or a loose seam but not big enough to cause a noticable exhaust blow. You didn’t say how many miles are on it. The usual cause of engine ping is over advanced ignition timing, an inoperative EGR system or improper fuel usage. Aftermarket Harley Davidson Motor Mounts and Stabilizing System. See this page for a list of common oxygen sensor contaminants. Normal idle speed is 1050. Carburetors are pot metal, very weak and easy to break. If the engine is cold and the high idle solenoid activates with the key on, it's good. This fast idle and the over rich mixture (due to lack of air), allows the engine to fire up and stay running. At Dennis Kirk, you will find the best selection of Harley-Davidson Carburetors. 5:1 with aluminum heads. idle 65 & high speed 28. View and learn more about the professional grade lineup of trucks, SUVs, crossovers, and vans. When I shut the key off and restarted it would idle normally for a short time then creep back up during riding. If oil is the life's blood of an engine, the oil pump is the heart. Want to know if your Harley is equipped with it?. Toad Suck Harley-Davidson® is an authorized Harley-Davidson® dealership serving the Conway, AR area. 2)high idle after 10-15 min regardless mostley city driven will be done 3)engine seams to get hotter and iddle faster, i have a 1200 sporty that ive had for a few years ,so kinda comparing it to the 883 wich seams to be the opposite so far. This Harley will be racing at 2,000 rpm at walking speeds indefinitely until you stop. Crower builds performance racing parts from camshafts to crankshafts. Turn engine off for gas, whatever, the problem starts again. Now, if this thermostat is stuck in the "preheat" position on an already hot day, you'll be burning really hot air. com, the official website for Car Craft Magazine. In addition, we offer a “High Efficiency” inner wire for use on clutch cables. Follow the tips in this video to be on your way to being a jetting pro!. , that only affect the efficiency of the spark, but the. The idle mixture screw is only one facet of overall carburetor jetting, however it is one of the first places to start when diagnosing a poorly running bike (motorcycle) or ATV (quad). Harley-Davidson's Big Twin is the heart and soul of America's most famous touring bikes. Upgrades not only let you generate more income with each click, some even generate clicks for you. It'll give you a "false high" due to. And the problem is often worse on a hot day. Shop online for original OEM & replacement parts. The K and KK's Model 53 is revered for its unusual "bombsite venturi", while the KH and KHK's Model 53-A1 was fairly similar to the well known M74B carb used on Big Twins. Harley-Davidson makes some of the most beautiful bikes we’ve ever seen. For proper adjustment, always check/set cold idle speed. 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. Idle Control Valve -- clean vs. If it does, a fuel pump with more capacity may be required. HARLEY QUINN Spinsanity promises to deliver epic high-flying excitement to Six Flags America as it spins and swings to breathtaking heights. 96Z28 code P0507 idle too fast car is a 96Z28, auto, headers, The code is P0507 (Idle Control System RPM Higher Than Expected). Buy new, used, and vintage Harley parts and accessories at reduced prices. Moved Permanently.