Motorcycle Ignition System Parts
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- BikeMaster®Magnetic Spark Plug Socket Set (151952)Universal Magnetic Spark Plug Socket Set by BikeMaster®. Make removing or installing plugs a breeze. The BikeMaster® Magnetic Spark Plug Socket Set will not wear out over time like the O-ring type, making them long-lasting and versatile.Designed to fulfill the needs of motorcyclistsState-of-the-art design and peerless quality$24.71
- BikeMaster®Spark Plug Hole Rethreader (M12 x 14) (151955)Universal Spark Plug Hole Rethreader (151955) by BikeMaster®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship....Designed to fulfill the needs of motorcyclistsState-of-the-art design and peerless quality$15.96
- BikeMaster®Standard Spark Plug Wrench (150332)Universal Standard Spark Plug Wrench by BikeMaster®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...Designed to fulfill the needs of motorcyclistsState-of-the-art design and peerless quality$8.38
- JIMS®Inline Spark Tester (750)Universal Inline Spark Tester (750) by JIMS®. This tool is designed to give you quick easy visual check of the ignition system. Quickly diagnose a ignition system with this in line tester. Works on all ignition systems including...Products designed to fulfill the needs of motorcyclistsExpertly crafted from the highest grade materials$36.23
- JIMS®Inline Spark Tester Replacement Bulb (751)Universal Inline Spark Tester Replacement Bulb by JIMS®. This tool is designed to give you quick easy visual check of the ignition system. Quickly diagnose a ignition system with this in line tester. Works on all ignition systems...Products designed to fulfill the needs of motorcyclistsExpertly crafted from the highest grade materials$7.55
- Motion Pro®Ignition System Tester (08-0122)Universal Ignition System Tester by Motion Pro®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...Test the integrity and strength of your ignition systemSpark gap is adjustable from 0 to 10mm$13.99
- Motion Pro®Ratchet Spark Plug Wrench (08-0147)Universal Ratchet Spark Plug Wrench by Motion Pro®. Made specifically for water-cooled 2-Stroke motorcycles and ATVs. Easier installation and removal of the spark plugs: Use one side for installation; Flip it over for removal.Designed to fit in limited space on many water-cooled 2-stroke enginesRatchet mechanism works one way, turn over to reverse$20.99
- Motion Pro®Spark Plug Gap Tool (08-0579)Universal Spark Plug Gap Tool by Motion Pro®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...Ideal tool for checking and setting spark plug gap on almost any spark plugIncludes 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 and 1.0 mm gap gauges$15.99
- NGK®Standard Nickel Spark Plug (90398)Standard Nickel Spark Plug by NGK®. Electrode Tip Material: Nickel. Gap Type: Pre-gapped. While most other traditional plugs feature only two seals, this spark plug by NGK is manufactured using triple-gasket sealing process that...Designed for consistent performanceMeet OE quality, fit, and function$13.70
- Champion®Spark Plug (388)Spark Plug by Champion®. Designed and manufactured to meet or exceed OE standards and specifications, this spark plug by Champion ensure fast engine start-up and smooth acceleration. The product is made of premium quality materials...Manufactured to restore your vehicle’s ignition systemDesigned with your specific vehicle in mind$5.12
- Moroso®Spiral Core Wire Set (27396)Spiral Core Wire Set by Moroso®. With this quality part backed by a great price, you can enjoy your vehicle so much more than you thought was possible. This Moroso part is specifically engineered to make your vehicle run better. If you...Complete, ready-to-install sets available for your specific engine applicationEach wire is individually tested for continuity and resistance after termination to ensure race-ready performance$22.99
- SMP®Plug Wire Set (MC-SPW8)Plug Wire Set by SMP®. Size: 8 mm. Triple silicone 8 mm motorcycle spark plug wire sets. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level...O.E.M. style terminalsDesigned specifically for motorcycle applications$24.90
- SMP®Plug Wire Set (MC-SPW6)Plug Wire Set by SMP®. Size: 8 mm. Triple silicone 8 mm motorcycle spark plug wire sets. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level...O.E.M. style terminalsDesigned specifically for motorcycle applications$24.90
- SMP®Plug Wire Set (MC-SPW12)Plug Wire Set by SMP®. Size: 8 mm. Triple silicone 8 mm motorcycle spark plug wire sets. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level...O.E.M. style terminalsDesigned specifically for motorcycle applications$46.54
- SumaX®Fire Power Plug Wires (S92231)Fire Power Plug Wires by SumaX®. Finish: Black. All wires fire intermittently no matter what coil or ignition you may have. That is why you see carbon on your plugs. SumaX 9 mm Firepower wires provide a solid stream of fire power...With a Lifetime WarrantyMade to rigorous quality standards$54.30
- SumaX®Spiro Pro 8mm Spark Plug Wires (30238B)Universal Spiro Pro 8mm Spark Plug Wires by SumaX®. This high performance ignition module provides your plugs with more spark over the stock module. The solid state electronics provide high coil out put and superior reliability. The...Designed to provide unrivaled value and maximum reliabilityExpertly crafted from the highest grade materials$56.60
- Arrowhead®Ignition Coil (IYA0001)Ignition Coil by Arrowhead®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading...High-quality, OEM rotating electrical parts for your rideBlend of power, efficiency, and dependability$32.64
- Twin Power®Ignition Coil (10-2025B)Ignition Coil by Twin Power®. Finish: Black. Type: Single Fire. Twin Power coils are high-quality direct fit with more voltage than stock. High-quality, molded-epoxy coils for 12-Volt H-D™ ignition systems increases peak spark voltage...One-year manufacturer's warrantyCrafted to deliver unbeatable levels of quality$68.90
- Twin Power®Ignition Coil (10-2032)Ignition Coil by Twin Power®. Finish: Chrome. Twin Power coils are high-quality direct fit with more voltage than stock. High-quality, molded-epoxy coils for 12-Volt H-D™ ignition systems increases peak spark voltage by 20% or more!...One-year manufacturer's warrantyCrafted to deliver unbeatable levels of quality$67.24
- Twin Power®Ignition Coil (10-2028)Ignition Coil by Twin Power®. Finish: Black. Twin Power coils are high-quality direct fit with more voltage than stock. High-quality, molded-epoxy coils for 12-Volt H-D™ ignition systems increases peak spark voltage by 20% or more! In...One-year manufacturer's warrantyCrafted to deliver unbeatable levels of quality$61.24
- Twin Power®Ignition Coil (10-2031)Ignition Coil by Twin Power®. Finish: Chrome. Twin Power coils are high-quality direct fit with more voltage than stock. High-quality, molded-epoxy coils for 12-Volt H-D™ ignition systems increases peak spark voltage by 20% or more!...One-year manufacturer's warrantyCrafted to deliver unbeatable levels of quality$67.24
- QuadBoss®Ignition Coil (IMC0007/160-01034)Ignition Coil by QuadBoss®. Includes new length of spark plug wire. Spark plug cap is not included. Put the punch back in your spark. A new Ignition Coil can restore lost power or fix a weak or no spark issue. If you're looking for a...Replacement ignition coilOne-year manufacturer's warranty$24.32
- Biker's Choice®Ignition Rotor (03-107)Ignition Rotor by Biker's Choice®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading...Designed to provide unrivaled value and maximum reliabilityExpertly crafted from the highest grade materials$8.28
- Arrowhead®CDI Box (IHA6019/160-02016)CDI Box by Arrowhead®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading materials...Engineered to meet uncompromisingly high standardsWill last longer and require minimum maintenance$74.27
- Arrowhead®CDI Box (IHA6013/160-02011)CDI Box by Arrowhead®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading materials...Engineered to meet uncompromisingly high standardsWill last longer and require minimum maintenance$64.05
- Arrowhead®CDI Box (IHA6012/160-02010)CDI Box by Arrowhead®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading materials...Engineered to meet uncompromisingly high standardsWill last longer and require minimum maintenance$25.43
- Arrowhead®CDI Box (IHA6017/160-02014)CDI Box by Arrowhead®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading materials...Engineered to meet uncompromisingly high standardsWill last longer and require minimum maintenance$23.18
- Arrowhead®CDI Box (IHA6011/160-02009)CDI Box by Arrowhead®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading materials...Engineered to meet uncompromisingly high standardsWill last longer and require minimum maintenance$44.46
- Procom®Igniter Module (PE-C-MH700-A)Igniter Module by Procom®. This product is distinguished by total quality assurance, unsurpassed by anybody else. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a...Created by professionals to meet your requirementsManufactured with cutting-edge technology$169.15
- Procom®Igniter Set (PE-C-MH750-A)Igniter Set by Procom®. Set of 2. This product is distinguished by total quality assurance, unsurpassed by anybody else. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a...Created by professionals to meet your requirementsManufactured with cutting-edge technology$169.15
Just like most cars, motorcycles are driven by a gasoline engine that produces power and torque through the combustion of a fuel and air mixture in a combustion chamber. To make the mixture blow up when a piston is in the top dead center position or very close to it in order to prevent engine from getting damaged and for its efficient operation, it must be ignited at the right time. That is what an ignition system is responsible for. If there is any problem with your ignition system, the engine may operate inefficiently and even not be able to start. That's why keeping your ignition system in proper condition is crucial, and with MOTORCYCLEiD replacement and high-performance motorcycle ignition parts and accessories it is easier and less pricey.
Spark plugs are the most familiar parts of the ignition system. These are expendable items that need to be replaced once in some tens of thousands of miles. The days when motorcyclists had to carry spares with them every time they went for a ride on two-strokes are long gone; today’s spark plugs that fire four-stroke engines are utterly reliable, and some are designed to run for as long as 100,000 miles or even more. They are taken for granted these days, but anyways, they go bad sooner or later. When it’s about time to replace them, don’t look anywhere else as here we carry a great range of motorcycle spark plugs from brand names you know and trust, including Autolite, Pulstar, and Accel.
Not only the spark has to be powerful enough to ignite the fuel, but it must also do that at the correct time. On vintage bikes, ignition timing is controlled by mechanical contact points which stay closed during ignition coil charging by a 12V source. When the distributor cam actuates a lever that goes to one of the points, it opens. Then, the drop in power makes the coil release the stored energy creating a high voltage pulse, which triggers the spark plug. The points had to be set up using feeler gauges and a screwdriver. Over time, the points get rusted, pitted, or otherwise damaged. Like all mechanicals with moving parts, they wear out and eventually require replacement.
On modern bikes, the spark is controlled by electronics. The majority of motorcycles produced since 1980 have a CDI box, which is the “brain” of the ignition system. CDI stands for Capacitor-Discharge Ignition. Capacitors can store energy and release it instantly, and that’s exactly what happens when the power is interrupted. Then, living up to its name, the capacitor discharges, and the energy goes to the ignition coil which fires the spark plugs with dramatically increased voltage. In order to do that right, the “brain” receives input from the pickup coil telling it at exactly what RPM the motor runs, which is the basis for correct timing calculations. The box is among the last parts to test when your motorcycle misfires, backfires, or otherwise runs improperly. However, the CDI unit does fail after many miles of riding due to heat and vibration constantly acting on internal electronics. When this happens, we have a reliable replacement designed specifically for your make and model at a lower than OE price.
When a spark plug does not produce a spark, the ignition coil is typically the first part to blame. Ignition coils can be of different configurations. Modern sport and street bikes tend to use a cap type, which sits directly on the plug eliminating the need for wiring. On older motorcycles, the coil is connected to one or two spark plugs via wiring. Loose or corroded wires can also be the reason for poor performance or a no-start. No matter what’s causing your bike’s ignition to malfunction, we have quality replacements. If you require maximum performance from your machine for racing purposes, we have motorcycle ignition parts with improved characteristics, which increase spark energy, improve its transfer, or reprogram your ignition, all while offering higher durability.