Some motorcycles utilize alternators like cars do, but this is less common on dirt bikes. The classic motorcycle charging system consists of a stator, a regulator/rectifier and a battery. A dirt bike without any of these components should be modified to use them.

Although there are lights which can be powered by AC voltage, they usually have a much shorter life. Powering lights off of alternating current will soon fry them. However, to power the required lights for street riding, you will need to convert the AC power your stator is making fire the spark plug to DC power the lights can use. This often-overlooked aspect of street legal dirt bike conversions can leave you parked on the side of the road.Ī battery is not necessary to power lights on a dirt bike if you have sufficient power from the stator. Some states require the plate to be past the rear tire for easy readability, but if it is visible from the rear of the bike then you shouldn't run into any issues. A light will be necessary, but a cheap LED strip mounted above the plate will suffice, and may prove to be a permanent solution. In many states, you can also mount the plate vertically if it makes it easier for you. You may also consider alternative means of affixing the plate, such as zip ties or mounting it beneath the fender for a cleaner look as pictured below. There are aftermarket license plate brackets available that display plates in a way that is legal in most every state. It is best to check with the local DMV to be sure the license plate is properly displayed on your street legal dirt bike. This rule is the same everywhere, though some states are more particular about the method of display than others. Motorcycles used on public roads will need to display a license plate. There are good taillight bracket-fender combos on the market that solve installation issues with a finished look. Mechanical switch options are also available which are best suited for drum brakes. One common solution is a banjo-bolt switch, which uses the extra pressure in the brake line when engaged to trigger the brake light. The switches for the taillight must be installed so that the rear brake pedal and front brake lever both light up the tail light when engaged. Like the headlight, an LED tail light will reduce the draw on the battery, meaning longer battery life and less need for a stator upgrade. In some states the light must be connected to a battery, which must be able to remain lit for 20 minutes, and it must be on at all times. Installing the proper taillight can kill four DOT requirements at once! It also attracts attention, which is just as important for safety in the daylight as it is in the dark. The tail light, with a working brake light function, enables drivers behind you to see that you are slowing down.

Mini bike kit without motor