The 1989 Harley Davidson Softail Wiring Diagram: An In-Depth Look
Harley Davidson has been around since 1903. Not only does the iconic brand produce superior quality motorcycles, but they also craft unique and intricate wiring diagrams. The 1989 Harley Davidson Softail wiring diagram is not only useful for those who purchase this model year, but it can also provide valuable information to engineers and enthusiasts alike. This guide will help break down every aspect of the wiring diagram, from basic components to more detailed applications.
When it comes to wiring, it's often underestimated how important it is to understand and have a complete understanding. Installing, removing, and repairing Harley Davidson Softail models–particularly those from 1989–require knowledge of the electrical systems and the specific parts that come with them. The wiring diagram provides all the necessary guidance, from component descriptions to color-coding. Let's delve into the specifics about the 1989 Harley Davidson Softail wiring diagram and examine its features.
Components & Colors
The 1989 Harley Davidson Softail wiring diagram is broken down into several components. Each part is represented by a color, which is usually accompanied by both English and symbol terms. It's essential to identify each component correctly to ensure the correct diagnosis. This includes the types of wires used and their length. It's also critical to understand the color that each component is represented by. Here is an outline of the components and the colors they depict:
• White – Connects the left side of the frame to the terminal block
• Red – Direct battery feed between master switch and starter relay
• Black – Connects the lower left side of the frame to the main ground
• Yellow – Ignition/headlight power
• Brown – Ground from battery
• Blue – Ground from starter switch or rectifier
• Green – Starter wire
• Purple – Connects the upper left side of the frame to the fuse block
Frame Connections & Layout
The frame connections and layout are important for effectively connecting the various components of the wiring diagram. First, the primary power connection is located on the left side of the frame. The secondary connection is placed to the right. This connection is used to bridge the primary power connection and the master switch.
The Simple speedometer connection connects the 84-86 sensor with the 87-89 sensor. The instrument connectors use a 4-pin plug to connect the cluster harness to the wiring diagram. Two steel cables are also used in this connection to integrate the speed sensor to the speedometer. Finally, the diode board is used to provide protection from overvoltage.
Fuse Block & Terminal Block
The fuse block is a vital component in the wiring diagram. This is where all the additional pieces of wiring are connected, allowing for a faster, cleaner setup. The terminal block is placed to the left of the fuse block and is identified by its blue-colored terminal. This connection is responsible for routing the black power feed from the main harness to the individual wires. The red power feed is then routed to the starter relay and main switch. Finally, the purple power feed is routed to the access ports on the back side of the motorcycle.
The 1989 Harley Davidson Softail wiring diagram is an invaluable resource for anyone looking to repair, install, or trouble shoot their motorcycle. As with any bikes, it's important to understand the components and color coding thoroughly to guarantee accurate and safe use. With all the information provided above, the task of deciphering the wiring diagram should be much easier.
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