What happens to the fuse on a Harley Davidson Sportster?
When a wire finds a path to ground that’s bypassing the device it’s powering, a shorter circuit is made. This generates heat and melts the metal strip inside the fuse. Without the right fuse (amp rating on top of the fuse), a fire can occur.
Where do you start on a Harley Davidson Sportster?
Always start at the fuse box when your Sportster experiences an electrical problem. This article applies to the Harley Davidson Sportster (2000-2015). Fuses, relays, and circuits breakers: they’re all circuit protection devices that can be found inside your Sportster’s fuse box, depending on its year.
What are relays on a Harley Davidson Sportster?
Figure 2. Testing a fuse with a multimeter. Relays are another type of circuit protection device. They use an internal magnetic switch to allow a smaller current to control a larger one. Looking at Figure 3, you can see connections 85 and 86 complete the circuit from the switch ground to the switch.
Why is my horn not working on my Harley?
I do not think you have a horn relay, so very little to go wrong. Common problem is blown fuse or horn is temperature sensitive, as it is simply a electromagnet with bimetallic strip interrupter that makes and breaks rapidly the magnetic field buzzing the metal diaphram.
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.
Always start at the fuse box when your Sportster experiences an electrical problem. This article applies to the Harley Davidson Sportster (2000-2015). Fuses, relays, and circuits breakers: they’re all circuit protection devices that can be found inside your Sportster’s fuse box, depending on its year.
Figure 2. Testing a fuse with a multimeter. Relays are another type of circuit protection device. They use an internal magnetic switch to allow a smaller current to control a larger one. Looking at Figure 3, you can see connections 85 and 86 complete the circuit from the switch ground to the switch.
What kind of exhaust does a 2002 Sportster have?
In 2002 Harley-Davidson introduced the new XL 883R which is modeled after the 1970 XR-750. Unlike all other 2002 Sportster models, it came with a 2 in 1 exhaust. It was also the only 2002 883 model with dual front disc brakes. Example: 1HD1CJM162K201624 appears on steering head.
Is there a 40 Amp Fuse on a 2003 Harley Davidson?
You do not have a 40 amp main fuse on your 2003 Heritage. You have a 30 amp main breaker. You do not need to perform any specific procedure prior to disconnecting your battery. Even if you have an active security system.
When a wire finds a path to ground that’s bypassing the device it’s powering, a shorter circuit is made. This generates heat and melts the metal strip inside the fuse. Without the right fuse (amp rating on top of the fuse), a fire can occur.
In 2002 Harley-Davidson introduced the new XL 883R which is modeled after the 1970 XR-750. Unlike all other 2002 Sportster models, it came with a 2 in 1 exhaust. It was also the only 2002 883 model with dual front disc brakes. Example: 1HD1CJM162K201624 appears on steering head.
You do not have a 40 amp main fuse on your 2003 Heritage. You have a 30 amp main breaker. You do not need to perform any specific procedure prior to disconnecting your battery. Even if you have an active security system.