Where are the fuses on a Harley Davidson Sportster?
Refer to the article Fuse Box Information to learn how to check your fuses, relays, and circuit breakers (if equipped). There is one main ground wire routed from the battery’s negative (black) terminal to a stud on the primary case. This is the largest of the ground wires on the Sportster.
Where are the ground wires on a Harley Davidson Sportster?
There is one main ground wire routed from the battery’s negative (black) terminal to a stud on the primary case. This is the largest of the ground wires on the Sportster. Start with the larger ground wires first, as they will have the greatest impact on your electrical system if a failure occurred.
Where does the Black Wire go on a starter?
Keith, the smaller black wire goes, together, with the heavy black cable to the long starter post/lug. The smaller black wire is powering your main breaker. The tan wire is the trigger from your starter relay; it plugs onto the male spade connector at the bottom of your starter. Have more questions?
What causes a Sportster battery to go bad?
If there is excess resistance between any ground point and the negative battery terminal, there is something loose, frayed, corroded or disconnected. Over the years, HD has grounded the Sportster electrical systems in a number of ways.
What causes fuse box to leak on 1981 Harley Davidson Sportster?
Figure 7. The circuit breakers from a 1981 Sportster. On newer model Sportsters with the triangular fuse box side cover, water has been known to leak past the cover and corrode the connections. Some symptoms of water corrosion include hard starting, a drained battery, and relays/switches turning on with the ignition off.
Why do you need a fuse box on a Sportster?
The fuse box contains the protection your Sportster’s electrical system needs to prevent shorts from becoming fires. Fuses purposely serve as the weak link in the circuit, but sometime just blow randomly.
When to start at the fuse box on a Harley Davidson?
Fuses purposely serve as the weak link in the circuit, but sometime just blow randomly. Always start at the fuse box when your Sportster experiences an electrical problem. This article applies to the Harley Davidson Sportster (2000-2015).
How can you tell if a fuse is blown on a Harley Davidson?
You can check to see if the fuse is blown without removal by using a digital volt ohm meter. Connect both probes to each side of the fuse. If continuity is present, the fuse is good. A blown fuse does not necessarily mean there’s a short present. Sometimes fuses wear or break because of vibration.