When it comes to wiring your Yamaha outboard tachometer, it is important to have a clear understanding of the wiring diagram. The tachometer is a device that measures the RPM of your engine and is an important tool for maintaining the longevity and performance of your Yamaha outboard. In this article, we will go over the wiring diagram for the 115 hp Yamaha outboard tachometer and answer common FAQs.
Wiring Diagram
The wiring diagram for the 115 hp Yamaha outboard tachometer is as follows:
| COLOR | FUNCTION |
|---|---|
| BLACK | GND (-) |
| GRAY | 12V+ |
| PINK | IGNITION/ACCESSORY |
| YELLOW | SIGNAL |
You will need to connect the black wire to ground, the gray wire to a 12-volt power source, the pink wire to the ignition or accessory wire, and the yellow wire to the signal wire.
Grounding the Tachometer
Grounding the tachometer is an important step in the installation process. The tachometer should be grounded to a clean, bare metal surface. It is important to ensure that the surface is free of paint, rust, or other debris that may interfere with the grounding process.
The grounding wire should be connected to a bolt or screw that is securely fastened into the metal surface. It is important to ensure that the grounding wire is securely attached to the bolt or screw to prevent any electrical interference.
Connecting to a 12-Volt Power Source
The gray wire should be connected to a 12-volt power source. This can be a battery or a power supply that is capable of supplying 12 volts of power. It is important to ensure that the power source is capable of providing a stable and consistent supply of power to the tachometer.
Connecting to the Ignition or Accessory Wire
The pink wire should be connected to the ignition or accessory wire. This wire is responsible for turning the tachometer on and off when the ignition is turned on and off. It is important to ensure that the pink wire is securely connected to the ignition or accessory wire.
Connecting to the Signal Wire
The yellow wire should be connected to the signal wire. This wire is responsible for transmitting the RPM signal from the engine to the tachometer. It is important to ensure that the yellow wire is securely connected to the signal wire.
FAQs
Can I install the tachometer myself?
Yes, you can install the tachometer yourself. However, if you are not familiar with electrical wiring or engine mechanics, it may be best to have a professional install the tachometer for you.
What is the purpose of the tachometer?
The tachometer is a device that measures the RPM of your engine. It is an important tool for maintaining the longevity and performance of your Yamaha outboard.
What if the tachometer is not working?
If the tachometer is not working, check the wiring connections to ensure that they are secure and properly connected. If the wiring connections are correct, the tachometer may need to be replaced.
What if the RPM reading is inaccurate?
If the RPM reading is inaccurate, check the wiring connections to ensure that they are secure and properly connected. If the wiring connections are correct, the tachometer may need to be recalibrated.
Can the tachometer be used for other purposes?
No, the tachometer is specifically designed to measure the RPM of your engine and should not be used for other purposes.
Conclusion
The wiring diagram for the 115 hp Yamaha outboard tachometer is a simple and straightforward process. By following the steps outlined in this article, you can install the tachometer yourself and ensure that it is working properly. Remember to ground the tachometer, connect it to a 12-volt power source, connect it to the ignition or accessory wire, and connect it to the signal wire. By doing so, you will have a functioning tachometer that is an important tool for maintaining the longevity and performance of your Yamaha outboard.
