Harley sportster spark plug torque. I have tightened my plugs up to what I feel is.

Harley sportster spark plug torque Failing to change them when needed can negatively affect your riding experience. Screamin’ Eagle® Performance Spark Plugs feature double platinum coating for superior erosion resistance and extended life. com that cross references popular spark plug part numbers to Brisk spark plug part numbers for Harley Davidson motorcycles. Even if you are an experienced mechanic, there are certain precautions you must take to keep your bike running right. Jan 16, 2011 · Well, time again for plugs. This is NOT scientific information. Spark Plug Charts Quick Reference for Most Engines This information has been verified form several sources, however, it is always best to consult the Harley service manual and the spark plug manufacturer data. The manual always makes me wonder if the best end of the listed spec is better or if there's actually a difference between 0. The procedure is the same for all Sportsters and most late-model Harleys. From NGK Iridium IX Spark Plugs for the Sportster to Champion Double Platinum Power Spark Plugs for the Dyna, each model has specific recommendations to boost efficiency. 035" 1996 to 2004 = . Oct 19, 2025 · The Harley-Davidson Sportster line benefits from reliable ignition performance to maximize throttle response, fuel efficiency, and engine longevity. Jul 24, 2023 · The best spark plugs for Harley Davidson motorcycles that I actually use in my own motorcycles as a mechanic. Including oil/filter changes, spark plugs, and no valve services. 0:1 ratio instead of the standard 1200's 9. For all of our engine kits, we specify the HD 10R12X Gold plugs that were stock in XR1200 models, available here or at your dealer under part number 27794-08. Aug 23, 2025 · The recommended spark plug gap for Harley-Davidson models typically ranges from 0. Follow these instructions carefully for maximum motorcycle performance and for your personal motorcycling safety and pleasure. In this article, we will be diving into the fascinating world of spark plugs and answering the burning question – what is the recommended gap specification for spark plugs on a Harley-Davidson? Have a question about motorcycle spark plug wires? We have expert answers. Some aftermarket spark plugs that fit the Sportster use a slightly larger 18mm spark plug socket. We install new oversize seats and larger valves, relocate the spark plug and enlarge the ports accordingly. 3 24. 025" 1990 to 1995 = . A 12-mm HD-6R12 spark plug with a 0. Like I said before as well. May 13, 2025 · Color: white Experience the quality of Genuine Harley-Davidson OEM Spark Plugs, designed specifically for Twin Cam and Sportster models. Mar 17, 2010 · I printed off the complete torque specs for the softail models . Jul 14, 2025 · So, checking your spark plug gap size can literally keep your Harley roaring like a lion instead of sputtering like a kitten! Recommended Spark Plug Gap Sizes for Harley Davidson Models Specific gap sizes for various Harley Davidson models. I got scared about 125 inch pounds and stopped. These spark plugs ensure reliable performance and durability, making your rides smoother and more enjoyable. If you make How to Tighten Spark Plugs Use the Champion torque recommendation below as a guide for tightening all spark plugs. Looking to replace plugs on an '05 1200. Aug 17, 2025 · Fascinated by the torque on Harley Davidson spark plugs? Unravel the significance behind this crucial detail for optimal engine performance. 040. 040" 1971 to 1981 = . Full descriptions below. 0:1), less restrictive mufflers, and special camshaft profiles. There is no reason to Jan 19, 2016 · Harley Davidson Touring: How to Replace Spark Plugs and Wires Eventually we all want to learn how to do our own motorcycle maintenance. Jun 18, 2008 · Expert Village Harley Spark Plug Replacement Video (not Sportster specific) Reading Spark Plug Instructions (not Sportster specific) Engine Idle Speed Adjustment: Frequency = 1,000 miles, 5,000 miles, and every 5,000 miles thereafter Engine Idle Speed Adjustment Instructions Air Cleaner Inspection/Cleaning: This manual has been prepared to acquaint you with the operation, care and maintenance of your motorcycle and to provide you with important safety information. Now my manual states to us HD-6R12(genuine HD) plugs, where can one find a crossreference chart that gives all the brands of plugs May 26, 2021 · 1970 - 1977 Sportster Fastener Torque Requirements Chassis Axle Nut: 50 ft-lbs / 67. Original equipment and Screamin' Eagle spark plugs are available. 79 Nm Brake Disc Mounting Screw: 35 ft-lbs / 47. See how to replace Harley Davidson spark plugs on your own! 2015 Harley-Davidson Service Intervals This collection of service interval tables is made available to use as a quick reference for service technicians. . 022"-. 4 Nm Electrical: XR 1200X COMPONENT SPECIFICATION Ignition timing Not adjustable Battery 12 V, 225 CCA, 12 Ah, sealed and maintenance free Charging system Single phase, 30 A system (357 W @ 13. Having the proper spark plugs is one of the most important things you can do to make sure your bike runs its best. Crafted with precision, they help maintain your bike’s engine efficiency. Getting these specs spot-on is important for things like cylinder head bolts, conrod bolts, and primary drive gear nuts. May 4, 2023 · Whether you’re tightening bolts, adjusting the clutch, or changing the spark plugs, knowing the correct torque values is crucial for maintaining the integrity and performance of your Harley Davidson. Enjoy peace of mind knowing you have authentic Harley-Davidson parts for Find Harley-Davidson spark plugs in our online store. (see coil information) The Ignition Control Module for these years is programmable by the dealer to match the specific model bike, either 883 or 1200. Harley Tune Up Specifications: Print It And Go Need a quick PDF printout of this chart to take to the garage? Click below to print a PDF of this file and take it mobile Point Gap for 1963 to 1981 = . Cross referencing including HD factory part numbers and Screaming Eagle part numbers. Mar 27, 2015 · I have a 2006 sportster roadster 1200 and the torque on the plugs are 12- 18 lb. For example, most Sportster models May 26, 2021 · 1970 - 1977 Sportster Fastener Torque Requirements Chassis Axle Nut: 50 ft-lbs / 67. These specifications ensure optimal performance and fuel efficiency. Lbs , is it best to stay in the middle of that range or stay up towards the top of the range . Spark plug torque is very important. 024 Point Gap for 1982 to 1985 = . S. Dec 21, 2020 · Looking for the best spark plugs for harley sportster? If you own a Harley Davidson, chances are that you are passionate about your motorcycle. Every 2-4 years replace fluids, or as needed. Spark plugs are small devices that help ignition your motorcycle. The procedure for removing the spark plugs is the same for both the front and back cylinder, and either spark plug can be replaced first. Service your 1991-2003 Harley-Davidson Sportster 883 and Sportster 1200 motorcycle with the Cyclepedia online service manual. 09 mm Spark plug torque 12 18 ft lbs 16. No valve service needed. Installed HD 6R12 plugs. Engine, Transmission and Chassis Assembly Torque Values Technical information on fastener torque values used in the maintenance, repair or assembly of Harley-Davidson motorcycles. Major repairs are covered in Nov 24, 2024 · The spark plugs in a 1976 Harley-Davidson Sportster are essential for ignition, performance, and fuel efficiency. When shopping for a replacement spark plug option, have your OEM spark plug information handy, and you can reference it against the table to evaluate each option and determine which spark plug will work best for you. Each plug offers unique features tailored to enhance your Harley's performance, but which one will prove to be the ultimate game-changer for your Sportster? Aug 10, 2023 · The NGK Iridium IX Spark Plugs are our recommendation as the best Harley Davidson spark plugs for most riders. Service bulletins cover interim engineering changes and supplementary information. Tighten spark plugs tp 11 - 18 ft-lbs per plug. I usually just stab it in the middle and settle for 0. The higher heat range plug burns off the soot. Includes tech support. This post contains affiliate links. Each product section includes a Clickable Amazon link, an image, and notes on compatibility and performance traits to In addition to specifying the exact torque, spark plug manufacturers and Harley-Davidson specify the angle when tightening. Thankfully it's super easy! Use an 11/16" spark plug socket to unscrew the spark plug by turning in a counter-clockwise direction. Including oil/filter changes, spark plugs, and more. 043 inch (0. Jul 11, 2024 · The 7 best spark plugs outlined here promise to elevate your riding experience to new heights. I have a factory service manual and it says to put Loctite anti seize on the plug threads and torque plugs to 12 -18 foot pounds. Jul 13, 2025 · Finding the best replacement spark plug option for your Harley-Davidson doesn’t have to be complicated. The “V” trimmed ground electrode reduces shrouding of the flame front to promote flame propagation, and the fine wire center electrode enhances startups and ignitability. Factors influencing gap size recommendations. We'll show you how to replace the spark plugs on your Harley and how to set the appropriate gap in this completely free tutorial video. Jun 28, 2022 · This guide will show how to remove the old spark plugs, check the new spark plugs for installation, prepare the spark plugs for installation, and Find the correct torque specs for your Harley Davidson. Went ot Autozone and they gave me Champion 810C (RA8HC) plugs. Finding the Right Gap for Your Harley The correct spark plug gap for your Harley-Davidson varies depending on the model year, engine size, and type of spark plugs used. When you don’t know about Harley Davidson torque specifications, you won’t be able to service or upgrade the motorcycle. We redesign and raise the intake port by welding to increase velocity,allowing for a crisper throttle response. Jun 18, 2024 · Detailed torque specifications for popular Harley Davidson models like Sportster, Softail, and Touring. Ignition The ignition system of the 2007 Harley Davidson Sportster 1200 remains the same as last year’s – a non-adjustable electronic CDI (Capacitor Discharge Ignition) and an electric starter with an auxiliary mechanical recoil. 1 mm) gap and a torque spec of 16. It helps you determine the correct spark plug type and specifications for your motorcycle. Never knew it existed. STAGE IVB – High Torque Heads The Ultimate heads for Sportster & Buell engines. This allows you to look up torque values without having to dig through the Service Manual. picture credit: canva Understanding the torque specs is essential for riders looking to get the most out of their Harley Davidson motorcycle. Use our complete Harley spark plug compatibility chart for Touring, Softail, Dyna, Sportster, V-Rod & Street models. 043 in 0. The BDFHYK four-pack iridium plugs are designed for Harley-Davidson Sportster engines from 1988 to 2016, including 883 and 1200 variants. Every Harley Davidson model is unique, including its spark plug gap size. Each pick is evaluated for compatibility with common Sportster years, ease Jul 11, 2024 · Kickstart your Harley Davidson 883 Sportster's performance with these 7 top spark plug options that promise power, efficiency, and an enhanced riding experience. Yet, even diehard riders often mistakenly think that all spark plugs are created equally. Let's spark it up! Dec 23, 2015 · Harley Davidson Sportster: How to Replace Spark Plugs and Plug Wires Your spark plugs and spark plug wires, or high tension (HT) leads, are at the center of proper engine performance. Any thoughts? For discussing problems about your Sportster motorcycle that don't fit anywhere else. Harley-Davidson has a book (by year) with all of the popular torque values. * This table is based upon Grade 5 fasteners, generally used Harley-Davidson motorcycles. Find the right spark plug for your Harley Davidson. Typically, the spark plugs should be tightened to a torque of 12-18 ft-lbs (16-24 Nm). Spark Plugs Performance and Technical information on spark plugs and other ignition system components for Harley-Davidson motorcycles. Oct 7, 2010 · Spark plug gap does affect combustion, power used to create the spark, length of spark, and other things. The seller emphasizes compatibility with DCPR7EIX, 6046, 9701, and 97637 OE numbers, highlighting cross-compatibility with several Harley models. Check out motorcycle spark plug wire FAQs to get answers to your burning questions. Check it out and don't forget to do something important! Apr 20, 2023 · Generally maintenance for the Harley-Davidson Sportster line can be summarised as 5000 mile / 8000 km maintenance intervals where you have to change the oil and filter, and check everything. After applying some anti-seize to the threads of the new plugs, you can thread them into the cylinder by hand and tighten them with a torque wrench and you’ll be good to go. 4 Nm (12–18 ft-lbf) is responsible for spark ignition Jun 17, 2025 · Improve your Harley Sportster's performance with the 5 best spark plugs—discover which ones can unleash your bike's true potential today! Nov 13, 2025 · Selecting the right spark plug can improve ignition efficiency, throttle response, and overall engine reliability for Harley-Davidson Sportster 1200 models. 3–24. 038–0. , LLC Trademark Information Contents Maintenance May 19, 2005 · Anybody have the torque specs for he spark plugs for a 2003 FLSTFI?? Thanks! Jan 7, 2016 · Harley Davidson Dyna Glide: How to Replace Spark Plugs and Wires Old spark plugs and wires can make a huge difference in the way your bike runs. Get accurate torque values for bolts, engines, wheels, and more. Aug 24, 2022 · The table below provides additional cross-reference information on replacement spark plug options for your Harley-Davidson. Notes on the maintenance schedule Article «Maintenance schedule of motorcycle» from section «Information for owner → Maintenance» from repair manual of motorcycles «Harley-Davidson XL1200» 2012-2023 years of release. The torque for the spark plugs in a Harley 103 engine should be applied judiciously to ensure optimal performance. Mar 20, 2025 · Fouling: An incorrect gap can cause the spark plug to foul, which means it becomes coated with carbon and other deposits, reducing its ability to spark effectively. From left to right the plugs are Normal, Rich, Lean and Very Lean. This includes how to remove, gap, and reinstall the spark * This table is based upon Grade 5 fasteners, generally used Harley-Davidson motorcycles. Harley says that the changes boost the 1200's torque by an average of 15 percent throughout the range and almost 10 percent (78 versus 71 foot-pounds) at 4000 rpm. Use our complete torque chart for engine, wheels, transmission, and suspension to keep your bike safe and reliable. 025" 1982 to 1985 = . 038 and 0. 9–1. Every two services, tighten everything up back to torque spec, and lubricate major bearings. Fortunately, changing spark plugs and wires is a good start at learning how to maintain your bike. A. The pages are formatted to allow 8. Learn more on our resource page. Feb 27, 2024 · Here's a Harley spark plug gap chart, along with installation & maintenance tips, problems you can encounter, and more. By choosing the correct spark plug, you can enhance overall performance and ride You should purchase gapped, Harley-only spark plugs which usually come with a gap of 38-43,000th of an inch. All '98 Sportsters Oct 31, 2025 · Choosing the right spark plugs can influence ignition reliability, throttle response, and fuel efficiency for Harley-Davidson Sportster motorcycles. Jan 25, 2024 · In addition to the high-tech electronics, the Sportster S benefits from a point more compression (a 10. 97 1. Jun 19, 2021 · Just watched this video and learned something new. This video demonstrates how to replace spark plugs on a Harley Sportster, specifically a rubber mount, fuel-injected model. My wife and I both ride 2016 model year Aug 17, 2025 · Proper spark plug gap on your Harley-Davidson motorcycle is key to ensuring your engine fires correctly and maintains optimal performance. 043 performance-wise on a stock 96". 14-21 is or seems to be a big difference . The information is divided into four sections: Ironhead Models (1957-1985) Evolution Models (1986-later) Reference Material (All Years) Misc Resources - Sportster Parts, Tech Bulletins, etc. My question is when there is a range , for instance transmission drain plug , 14-21 ft. Your Owner's Manual contains instructions for operation and minor maintenance. 040 gap the plug that harley recommends the wire that harley recommends Sep 23, 2021 · Harley-Davidson Sportster Iron 1200 XL1200NS (2018+) maintenance schedules and service intervals. 016" Spark Plug Gap: 1963 to 1970 = . Watch how I replace or change the sparkplugs on my Harley-Davidson Sportster Iron 883 with NGK Iridium Sparkplugs from Amazon and why it is important to change the sparkplugs on your motorcycle The Cyclepedia Press LLC Harley-Davidson XL883 XL1200 Fuel Injected Sportster Motorcycle Online Manual features detailed full-color photographs and wiring diagrams, complete specifications with step-by-step procedures performed by a veteran motorcycle dealer trained technician. SPARK PLUGS: It's VERY important that you run the correct spark plugs with your new HAMMER PERFORMANCE engine kit, or unwarrantied engine damage will result. Jul 20, 2005 · I have the pilot screw adjusted to give a good spark plug color [tan] for the front plug so the rear plug tends to get sooty. Article «All torque values for motorcycle repair» from section «Information for owner → Maintenance» from repair manual of motorcycles «Harley-Davidson XL1200» 2012-2023 years of release. if any body can walk me though this pipe install it would be a much needed helping hand. This guide highlights five top-rated spark plug options commonly used with Sportster models from the 1980s through the mid-2010s. The iridium-based electrodes enhance ignition performance, producing quicker spark jumps and stable ignition In the Third episode of my step-by-step tutorial, I'll guide you through the process of changing the Spark Plugs on a Harley Davidson Sportster. 5 V, 2000 rpm, 405 W max Jan 18, 2025 · Find Harley Davidson torque specifications for all model years. For Harley Davidson bikes, torque specifications are key to making sure everything in the engine and other parts works right. Note: If using a torque wrench vs. 043 inches, but check the manual for model-specific details. This guide focuses on top-rated plugs that balance longevity and performance, including iridium designs and resistor options that suit Sportster ignition systems. In addition to the information presented in this manual, Harley-Davidson Motor Company will periodically issue service bulletins to Harley-Davidson dealers. Harley Davidson motorcycles are renowned for their power and performance and, in large part, for the torque specifications of their engines. I change the spark plugs on every vehicle I’ve ever owned at around 20,000 mile intervals with cheap NGK copper $2 plugs and torquing to spec, or even guessing the torque from experience (not recommended), I have never once had a plug seize, break, jam, or in any way fail, and I absolutely would NEVER apply any additive to spark plug threads. Ft and I always use antiseize on the plugs. Discover some aftermarket alternatives to OEM spark plugs! Find Harley-Davidson spark plugs in our online store. 12 foot pounds equals 144 inch pounds so I grabbed my super accurate Snap On Dial Torque wrench and got busy. Spark plug type 6R12 Spark plug size 12 mm Spark plug gap 0. I have tightened my plugs up to what I feel is Dec 10, 2023 · Torque, simply put, is the force that causes rotation/twisting. 015"-. 043 inches), and regularly inspecting them can ensure your vintage bike runs smoothly. The right spark plugs deliver a cleaner burn, quicker starts, and steadier idle across riding styles and climates. May 24, 2023 · An exhaustive troubleshooting guide for when your Harley turns over but no spark is present. Including oil/filter changes, spark plugs, etc. The Harley spark plug chart helps Apr 18, 2013 · They looked pretty good as well. 45 Nm (1973) Aug 18, 2021 · Harley-Davidson Sportster S (2021+ RH1250S) maintenance schedules and service intervals. A page on BriskRacing. Remember that, and go by the service manual. 5 x 11 printing at the dealership. These are specifically designed for twin-cam bikes and work well in most Harley’s. It is important, and a big deal. Last edited by IronMick; 20 July 2005, 05:23. Keep. Torque is one of the most critical factors in spark plug installation. A diy, step by step video demonstration on how to change or replace spark plugs on a motorcycle : Harley-Davidson Forty-Eight Sportster. 030 This guide will show how to remove the old spark plugs, check the new spark plugs for installation, prepare the spark plugs for installation, and reinstall the new spark plugs. They help burn the fuel well and ensure the engine’s smooth running. Step-by-Step Instructions Tapered Seat Plugs Step One Install the new plug finger tight, and complete the installation with a torque wrench. This guide highlights five top plugs that suit Sportster models, especially Twin Cam engines from 1999 to 2016, focusing on iridium From this point forward, all the Sportster models used a Single-fire Spark system, using two individual coil trigger wires to produce a spark on individual spark plugs, one at a time. May 7, 2023 · The spark plug chart is an essential tool for every Harley owner. Aug 17, 2025 · For a complete approach to motorcycle upkeep, explore our other maintenance resources: the motorcycle tire pressure basics guide for keeping your tires safe, the motorcycle chain maintenance guide for drivetrain care, and our Harley-Davidson spark plug gap chart to ensure your ignition system runs smoothly. 1 — Spark Plugs The spark plugs are easy to spot on the left side of the motorcycle. Jul 11, 2024 · Jumpstart your 1200 Sportster's performance with the 7 best spark plugs, tailored for maximum efficiency and power gains. 040" 1986 to 1989 = . Knowing how much torque each engine can produce and what components it affects will help you make informed Harley Davidson Spark Plug Fitment Chart Reading your spark plug The image of the spark plugs above shows four common conditions that you’ll find your spark plugs in. 45 Nm (1973) Oct 14, 2025 · Sportster Technical Menu Below you can find a vast array of technical information about the Sportster model motorcycle created by Harley-Davidson in 1957. plug wrench, please refer to the Torque Recommendations chart below. They are cheap and easy to replace, too! Why wouldn't you take advantage of that? Jul 5, 2012 · OK, I did a search on spark plugs and found nothing. Jul 11, 2024 · Kickstart your Sportster 883's performance with the best spark plugs to boost efficiency and power - find out which one suits your Harley best! Aug 16, 2025 · Here is the official maintenance schedule for all Harley Davidson models. Harley suggests replacing the spark plugs on your M8 every two years or thirty thousand miles, whichever scenario comes up first. Conclusion Selecting the right spark plugs for your Harley-Davidson motorcycle is crucial for optimizing performance and ensuring longevity. How To: Change and Inspect Spark Plugs - Harley Davidson SportsterThe task that every Harley Davidson Sportster owner will one day face. Apr 8, 2010 · I'll quote my HD owners manual "Spark plugs must be tightened to the torque specified for proper heat transfer. I have "heard" that Champions are not as good a plug, and that HD plugs are made by Champion. This guide will show how to remove and install the spark plug in the rear cylinder. 2019 HARLEY-DAVIDSON® SERVICE MANUAL: SPORTSTER® MODELS Foreword Foreword General How To Use Your Manual Preparation For Service Service Bulletins Use Genuine Replacement Parts Warnings and Cautions Product References Product Registered Marks H-D U. 038 to 0. V -Twin Café provides a spark plug application and interchange chart for Harley-Davidson motorcycles, including Twin Cam, Evolution, Shovelhead and Sportster engines Take a look at the torque chart on that Web site and notice that what NGK recommends and what Harley recommends for the torque for 14mm spark plugs (what we use in our Evo Sporsters) is different. Please see the appropriate service manual or supplement for detailed service instructions. Keep your Fuel Injected Harley-Davidson XL883 XL1200 Sportster motorcycle running in top notch condition with the Oct 17, 2009 · install on a 07 night train, need to know torque on pipe bolts and o2 sencer. " I found the same reccomendation on 2 other 'name brand' spark plug web pages. 038 0. No matter which thread, first tighten spark plugs by hand and then: TIRES Tire replacement SHOCK ABSORBERS SPARK PLUGS IGNITION CArBURETOR AIR CLEANER Aug 19, 2021 · Harley-Davidson Iron 883 (EFI, 2009+) maintenance schedule and service intervals. Using the correct type, maintaining proper gap settings (0. iumjkh gmahl lujuc ebk cvfl nwrn zvbgt dzjn pcz ydyhrd gsqzkhcf fjwd dhf mrw vgum