Motorcycle Electrical & Wiring
![2000I PC Programmable Electronic Ignition Kit for Harley-Davidsons](http://www.lowbrowcustoms.com/cdn/shop/products/011926-DynatekPerformanceElectronics-2000IPCProgrammableElectronicIgnitionKitforHarley-Davidsons-4_{width}x.jpg?v=1678369490)
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Dynatek Performance Electronics
2000I PC Programmable Electronic Ignition Kit for Harley-Davidsons
4
$256.66
$264.43
![Antigravity Lithium Small Case Battery - 12 Cell - AG-1201](http://www.lowbrowcustoms.com/cdn/shop/files/002656-Antigravity-Batteries-Battery-12-Cell-AG-1201-Lithium-Small-Case-1_{width}x.jpg?v=1696961921)
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Antigravity Batteries
Antigravity Lithium Small Case Battery - 12 Cell - AG-1201
34
$219.99
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Gremlin Wiring
The Sportster Treatment Custom Wiring Harness Kit 1999-2003 Harley-Davidson Sportster Models
31
$209.95
![CE-84T-99 Stator Rotor and Regulator Kit for 1999 - 2003 Harley-Davidson FLH and FLT Models](http://www.lowbrowcustoms.com/cdn/shop/products/008717-cycle-electric-stator-rotor-regulator-kit-99-03-harley-davidson-1_{width}x.jpg?v=1622463900)
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Cycle Electric
CE-84T-99 Stator Rotor and Regulator Kit for 1999 - 2003 Harley-Davidson FLH and FLT Models
18
$468.28
$535.38
![Stealthstarter Electric Starter Kit Swingarm Frame 4 Speed 1958-1985 Harley-Davidson Big Twins](http://www.lowbrowcustoms.com/cdn/shop/files/015509-Cannonball-StealthstarterElectricStarterKitSwingarmFrame4Speed1958-1985Harley-DavidsonBigTwins-1_{width}x.jpg?v=1695410698)
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Cannonball
Stealthstarter Electric Starter Kit Swingarm Frame 4 Speed 1958-1985 Harley-Davidson Big Twins
$3,272.66
![Weatherproof Starter Ignition Key Switch - Chrome Bezel](http://www.lowbrowcustoms.com/cdn/shop/products/large_2732_lowbrow-weatherproof-starter-ignition-switch-1_{width}x.jpg?v=1588917283)
![Weatherproof Starter Ignition Key Switch - Chrome Bezel](http://www.lowbrowcustoms.com/cdn/shop/products/large_2732_lowbrow-weatherproof-starter-ignition-switch-2_{width}x.jpg?v=1588917286)
Lowbrow Customs
Weatherproof Starter Ignition Key Switch - Chrome Bezel
88
$59.99
![Dyna S Ignition Complete Kit - Dual Fire for Harley Davidsons](http://www.lowbrowcustoms.com/cdn/shop/products/008787-Dynatek-Dyna-S-Ignition-Complete-Kit-Dual-Fire-1_{width}x.jpg?v=1622406978)
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Dynatek Performance Electronics
Dyna S Ignition Complete Kit - Dual Fire for Harley Davidsons
15
$204.43
![Tri-Spark Classic Twin Electronic Ignition System for Triumph BSA Norton Twins And SIngles](http://www.lowbrowcustoms.com/cdn/shop/files/000983-Tri-Spark-Tri-SparkClassicTwinElectronicIgnitionSystemforTriumphTwinMotorcycles-2_{width}x.jpg?v=1700573698)
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Tri-Spark
Tri-Spark Classic Twin Electronic Ignition System for Triumph BSA Norton Twins And SIngles
13
$289.99
![Antigravity Lithium Small Case Battery - 8 Cell - AG-801](http://www.lowbrowcustoms.com/cdn/shop/products/002655-Antigravity-Battery-8-Cell-1_{width}x.jpg?v=1629214690)
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Antigravity Batteries
Antigravity Lithium Small Case Battery - 8 Cell - AG-801
28
$161.99
![Alternator Kit 32 amp CE-32A - Harley-Davidson Evo Big Twins](http://www.lowbrowcustoms.com/cdn/shop/products/large_2340_2340_cycle-electric-ce-32a-charging-system-evo-photo-1_{width}x.jpg?v=1588885488)
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Cycle Electric
Alternator Kit 32 amp CE-32A - Harley-Davidson Evo Big Twins
3
$400.20
$458.99
![Rectifying Regulator CE-608 - 2009-2013 Harley-Davidson FLH FLT Models with Low Mount Oil Cooler](http://www.lowbrowcustoms.com/cdn/shop/products/008725-cycle-electric-regulator-ce-608-09-11harley-davidson-low-mount-oil-cooler-1_{width}x.jpg?v=1622231762)
![Rectifying Regulator CE-608 - 2009-2013 Harley-Davidson FLH FLT Models with Low Mount Oil Cooler](http://www.lowbrowcustoms.com/cdn/shop/products/008725-cycle-electric-regulator-ce-608-09-11harley-davidson-low-mount-oil-cooler-3_{width}x.jpg?v=1622231759)
Cycle Electric
Rectifying Regulator CE-608 - 2009-2013 Harley-Davidson FLH FLT Models with Low Mount Oil Cooler
16
$191.23
$203.12
![Antigravity Lithium Small Case Battery - 4 Cell - AG-401](http://www.lowbrowcustoms.com/cdn/shop/files/002653-Antigravity-Batteries-Battery-4-Cell-AG-401-Lithium-Small-Case-updated-1_{width}x.jpg?v=1696962433)
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Antigravity Batteries
Antigravity Lithium Small Case Battery - 4 Cell - AG-401
35
$119.99
![3 Ohm Dual Output HD - For Use With Dyna Electronic Ignitions](http://www.lowbrowcustoms.com/cdn/shop/products/015187-Dynatek-3OhmDualOutputHD-ForUseWithDynaElectronicIgnitions_{width}x.jpg?v=1675194615)
Dynatek Performance Electronics
3 Ohm Dual Output HD - For Use With Dyna Electronic Ignitions
$112.21
![Antigravity Lithium Small Case Battery - 16 Cell - AG-1601](http://www.lowbrowcustoms.com/cdn/shop/products/012934-Antigravity-Battery-16-Cell-AG-1601-Lithium-Small-Case-1_{width}x.jpg?v=1629215273)
![Antigravity Lithium Small Case Battery - 16 Cell - AG-1601](http://www.lowbrowcustoms.com/cdn/shop/products/012934-Antigravity-Battery-16-Cell-AG-1601-Lithium-Small-Case-2_{width}x.jpg?v=1629215172)
Antigravity Batteries
Antigravity Lithium Small Case Battery - 16 Cell - AG-1601
2
$289.99
![MM3 Magneto for Harley Davidson Sportster 1957 - 1970 and 45 and 80 Flatheads - Brushed Finish](http://www.lowbrowcustoms.com/cdn/shop/products/mzi4qum0meu0rki3n0nemjmzmei6ogmznzi3otrindmxztmxnmiwnzmwmzm0njewogvkogi6ojo6oja_{width}x.jpg?v=1588904296)
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Morris Magneto
MM3 Magneto for Harley Davidson Sportster 1957 - 1970 and 45 and 80 Flatheads - Brushed Finish
2
$1,359.75
![5 ohm Dual Fire Coil - for Points Ignition](http://www.lowbrowcustoms.com/cdn/shop/products/008157_-_drag_specialties_-_5_ohm_dual_fire_coil_-_for_points_ignition-1_{width}x.jpg?v=1588884022)
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Drag Specialties
5 ohm Dual Fire Coil - for Points Ignition
14
$67.95
![The Sportster Treatment Custom Wiring Harness Kit 1986-1990 Harley-Davidson Sportster Models](http://www.lowbrowcustoms.com/cdn/shop/products/013226-SportsterTreatment-CustomWiringHarnessKit1986-1990Harley-DavidsonSportsterModels-1_{width}x.jpg?v=1639145787)
![The Sportster Treatment Custom Wiring Harness Kit 1986-1990 Harley-Davidson Sportster Models](http://www.lowbrowcustoms.com/cdn/shop/products/013226-SportsterTreatment-CustomWiringHarnessKit1986-1990Harley-DavidsonSportsterModels-2_{width}x.jpg?v=1639145787)
Gremlin Wiring
The Sportster Treatment Custom Wiring Harness Kit 1986-1990 Harley-Davidson Sportster Models
1
$209.95
![The Sportster Treatment Custom Wiring Harness Kit 1997 Harley-Davidson Sportster Models](http://www.lowbrowcustoms.com/cdn/shop/products/010541-the-sportster-treatment-custom-wiring-harness-kit-1997-harley-davidson-sportster-models-1_b9a37e5d-51f6-4116-85b9-c0594dd3fe0d_{width}x.jpg?v=1622427613)
![The Sportster Treatment Custom Wiring Harness Kit 1997 Harley-Davidson Sportster Models](http://www.lowbrowcustoms.com/cdn/shop/products/010541-the-sportster-treatment-custom-wiring-harness-kit-1997-harley-davidson-sportster-models-3_1dedf607-0b7f-4341-912f-2f74456717be_{width}x.jpg?v=1622427613)
Gremlin Wiring
The Sportster Treatment Custom Wiring Harness Kit 1997 Harley-Davidson Sportster Models
6
$209.95
![5 ohm Dual Fire Coil - for Points Ignition](http://www.lowbrowcustoms.com/cdn/shop/products/011752-Dynatek-Performance-5-ohm-Dual-Fire-Coil-for-Points-Ignition-1_{width}x.jpg?v=1611342287)
![5 ohm Dual Fire Coil - for Points Ignition](http://www.lowbrowcustoms.com/cdn/shop/products/011752-Dynatek-Performance-5-ohm-Dual-Fire-Coil-for-Points-Ignition-2_{width}x.jpg?v=1611342287)
Dynatek Performance Electronics
5 ohm Dual Fire Coil - for Points Ignition
2
$112.21
![Weatherproof Starter Ignition Switch - Brass Bezel](http://www.lowbrowcustoms.com/cdn/shop/products/008289-lowbrow-customs-weatherproof-starter-ignition-switch-brass-bezel-1_1_{width}x.jpg?v=1588917288)
![Weatherproof Starter Ignition Switch - Brass Bezel](http://www.lowbrowcustoms.com/cdn/shop/products/008289-lowbrow-customs-weatherproof-starter-ignition-switch-brass-bezel-2_{width}x.jpg?v=1588917291)
Lowbrow Customs
Weatherproof Starter Ignition Switch - Brass Bezel
16
$64.99
![Regulator CE-540L for use on 12v Harley-Davidson Generators](http://www.lowbrowcustoms.com/cdn/shop/products/003781-Cycle-Electric-regulator-CE-540L_1_{width}x.jpg?v=1622231168)
![Regulator CE-540L for use on 12v Harley-Davidson Generators](http://www.lowbrowcustoms.com/cdn/shop/products/large_3781_cycle-electric-regulator-ce-540l_2_{width}x.jpg?v=1622231015)
Cycle Electric
Regulator CE-540L for use on 12v Harley-Davidson Generators
19
$162.74
$174.21
![3 position Ignition Key Switch Replaces Harley-Davidson OEM #71425-77 - Chrome Body / Chrome Bezel](http://www.lowbrowcustoms.com/cdn/shop/products/009918-cycle-standard-3_position-ignition-key-switch-replaces-harley-davidson-oem71425-77-chrome-body-chrome-bezel-2_{width}x.jpg?v=1622555645)
![3 position Ignition Key Switch Replaces Harley-Davidson OEM #71425-77 - Chrome Body / Chrome Bezel](http://www.lowbrowcustoms.com/cdn/shop/products/009918-cycle-standard-3_position-ignition-key-switch-replaces-harley-davidson-oem71425-77-chrome-body-chrome-bezel-1_{width}x.jpg?v=1622555648)
Cycle Standard
3 position Ignition Key Switch Replaces Harley-Davidson OEM #71425-77 - Chrome Body / Chrome Bezel
12
$31.93
![Electronic Ignition for 1970-1999 Harley-Davidson Shovelhead Evolution and Sportsters](http://www.lowbrowcustoms.com/cdn/shop/products/011939-Rawhide-Cycles-Electronic-Ignition-for-1970-1999-Harley-Davidson-Shovelhead-Evolution-and-Sportsters-1_{width}x.jpg?v=1622458617)
![Electronic Ignition for 1970-1999 Harley-Davidson Shovelhead Evolution and Sportsters](http://www.lowbrowcustoms.com/cdn/shop/products/011939-Rawhide-Cycles-Electronic-Ignition-for-1970-1999-Harley-Davidson-Shovelhead-Evolution-and-Sportsters-2_{width}x.jpg?v=1622458618)
Rawhide Cycles
Electronic Ignition for 1970-1999 Harley-Davidson Shovelhead Evolution and Sportsters
$249.00
![The Sportster Treatment Custom Wiring Harness Kit 1994-1996 Harley-Davidson Sportster Models](http://www.lowbrowcustoms.com/cdn/shop/products/010540-the-sportster-treatment-custom-wiring-harness-kit-1994-1996-harley-davidson-sportster-models-1_dca0832f-71fc-4f4e-9b22-18c09f8449f1_{width}x.jpg?v=1622427615)
![The Sportster Treatment Custom Wiring Harness Kit 1994-1996 Harley-Davidson Sportster Models](http://www.lowbrowcustoms.com/cdn/shop/products/010540-the-sportster-treatment-custom-wiring-harness-kit-1994-1996-harley-davidson-sportster-models-2_2821a0a2-510f-43f5-906e-8365d2732f52_{width}x.jpg?v=1622427613)
Gremlin Wiring
The Sportster Treatment Custom Wiring Harness Kit 1994-1996 Harley-Davidson Sportster Models
14
$209.95
Motorcycles are more than just a means of transportation; they're a way of life for many enthusiasts. When it comes to owning and customizing a motorcycle, understanding the intricacies of the electrical system is essential. From the ignition that...
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Motorcycle Electrical & Wiring FAQ
What are the signs of a bad ignition switch?
There are a couple of indicators of a bad ignition switch. The first indicator is if your bike will not start, and you know your battery and connections are good. This seems pretty obvious, but there are other things that can cause your ignition system to fail. If you have a neutral light, you can check to see if it is lighting when you turn your key on. If the neutral light does not come on, it may mean your motorcycle ignition switch is bad. Other indicators would include a loose-fitting key or the bike stalling when riding down the road.
How often should spark plugs be replaced?
This varies from manufacturer to manufacturer. Harley recommends changing your motorcycle spark plugs every 10,000 miles. This is not because the spark plugs have gone bad, it is simply because they are not as efficient as they were when they were new. Spark plugs wear over time. The edges of the electrodes will eventually burn down. Spending a few dollars to keep your motorcycle running like it should is a good idea. Check your manufacturer recommendations to determine when is best to change your spark plugs.
How do you know if your brake light switch is bad?
It depends on which switch you are trying to diagnose. The brake light switch actuated by your hand brake lever is a tiny momentary switch. If you listen carefully, you can hear it “click” when you apply your hand brake. If your brake light is not coming on, and you do not hear that “click”, it is a good indicator that your switch may be bad. Rear brake pedals typically use plunger mechanical switches. If your brake light is not working when you apply your rear brake pedal, locate the wires to the rear brake switch. Turn off the ignition. Unplug the two wires and jump the circuit with a small piece of wire. If you turn on the ignition and the rear brake light is on, your switch is bad.
What is the average life of a motorcycle battery?
There are a variety of variables that you need to consider when determining the average life-span of a motorcycle battery. AGM lead acid batteries will not last as long as some of the newer lithium batteries. Most lead acid AGM batteries have a 4 year service life span. If you live in a cold climate and do not maintain your battery during the winter months you will greatly reduce the life span of your battery. This applies to Conventional, AGM, and Lithium batteries. During those winter months it is a good practice to keep those batteries charged and in a warm storage area.
What gauge wire is used on motorcycles?
Most motorcycles use 16 to 18 gauge wire for the controls and lights. Items like starters and battery connections use ticker gauge wire typically 12 to 14 gauge.