1. Introduction
Thank you for choosing the KOSO 360-351 GP Style D55 Speedometer. This manual provides detailed instructions for the proper installation, operation, and maintenance of your new speedometer. Please read this manual thoroughly before use to ensure optimal performance and safety.
The KOSO GP Style D55 speedometer features a D55/61mm diameter, displaying speed up to 260 km/h, odometer, trip meter, and a blue backlight for clear visibility. It includes a universal sensor and bracket kit for versatile mounting.
2. Safety Information
- Always ensure the vehicle's power is off before attempting any installation or wiring.
- Incorrect wiring can cause damage to the speedometer or the vehicle's electrical system. If unsure, consult a qualified technician.
- Mount the speedometer securely to prevent it from becoming a projectile during vehicle operation.
- Do not attempt to disassemble or modify the speedometer. This will void the warranty and may lead to malfunction.
- Keep the speedometer away from excessive heat, moisture, and direct sunlight for prolonged periods.
- Always prioritize safe driving. Do not operate or adjust the speedometer while the vehicle is in motion.
3. Package Contents
Please check the package contents against the list below. If any items are missing or damaged, contact your dealer immediately.
- KOSO GP Style D55 Speedometer (Model: 360-351)
- Universal Speed Sensor
- Mounting Bracket Kit
- Wiring Harness
- Instruction Manual (this document)
Image 1: KOSO GP Style D55 Speedometer. This image shows the front view of the speedometer with its black dial, white markings for speed (0-240 km/h), a digital display at the bottom, and a chrome bezel.
4. Setup & Installation
4.1 Mounting the Speedometer
- Choose a suitable location on your vehicle's dashboard or handlebar that provides clear visibility and does not obstruct your view of the road.
- Use the provided mounting bracket kit to securely attach the speedometer. Ensure all screws are tightened appropriately.
- Adjust the viewing angle for optimal readability.
4.2 Installing the Speed Sensor
- Identify a suitable location for the universal speed sensor, typically near a rotating part of the wheel (e.g., brake disc bolts, wheel spokes).
- Mount the sensor securely, ensuring it is within the specified sensing distance of the magnet (not included, or use existing vehicle magnets if compatible).
- Route the sensor cable away from moving parts and heat sources, securing it with cable ties.
4.3 Wiring Connections
Refer to the wiring diagram provided with your speedometer for specific connections. General connections typically include:
- Red Wire: +12V Switched Power (Ignition)
- Black Wire: Ground (-)
- Blue Wire: Backlight Power (Optional, connect to +12V when headlights are on)
- Yellow Wire: Speed Sensor Input
Ensure all connections are secure and insulated to prevent short circuits.
5. Operation
5.1 Power On
Turn the vehicle's ignition key to the "ON" position. The speedometer will power on, and the blue backlight will illuminate (if connected).
5.2 Speed Display
As the vehicle moves, the needle will indicate the current speed in km/h. The digital display may show additional information.
5.3 Odometer (ODO) and Trip Meter (TRIP)
The digital display typically cycles between Odometer (total distance) and Trip Meter (resettable distance). A button on the speedometer (or a separate switch, if applicable) allows you to switch between these modes and reset the trip meter.
- Switching Modes: Press the button briefly to toggle between ODO and TRIP.
- Resetting Trip Meter: While in TRIP mode, press and hold the button for a few seconds until the trip value resets to zero.
5.4 Backlight
The speedometer features a blue backlight for enhanced visibility in low-light conditions. This backlight is typically activated when the vehicle's headlights are turned on, assuming it's wired correctly.
6. Maintenance
- Cleaning: Use a soft, damp cloth to clean the speedometer's surface. Do not use abrasive cleaners, solvents, or harsh chemicals, as these can damage the display or casing.
- Inspection: Periodically check all wiring connections for looseness or corrosion. Ensure the speed sensor and its mounting are secure.
- Storage: If the vehicle is stored for an extended period, ensure the speedometer is protected from extreme temperatures and moisture.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Speedometer does not power on. | No power supply; incorrect wiring; blown fuse. | Check power connections (+12V and Ground). Verify wiring according to the diagram. Check vehicle's fuse box. |
| Speed display is inaccurate or erratic. | Incorrect sensor installation; faulty sensor; loose sensor connection; incorrect wheel circumference setting (if applicable). | Ensure sensor is securely mounted and correctly aligned with the magnet. Check sensor wiring. Refer to the manual for wheel circumference calibration if your model supports it. |
| Backlight does not work. | Backlight wire not connected; faulty backlight. | Check the backlight wire connection (usually to headlight power). If wiring is correct, the backlight may be faulty. |
| Buttons are unresponsive. | Stuck button; internal malfunction. | Gently press the buttons to ensure they are not stuck. If the issue persists, contact support. |
8. Specifications
- Model: KOSO 360-351 GP Style D55 Speedometer
- Display Type: Analog needle with digital LCD
- Diameter: D55 / D61mm (bezel)
- Speed Range: 0 - 260 km/h
- Functions: Speed, Odometer, Trip Meter
- Backlight: Blue
- Sensor: Universal Speed Sensor (included)
- Power Supply: DC 12V
- Certification: German ABE (Allgemeine Betriebserlaubnis)
9. Warranty & Support
KOSO products are manufactured to high-quality standards and are warranted against defects in materials and workmanship for a specified period from the date of purchase. Please refer to your purchase documentation or the official KOSO website for specific warranty terms and conditions.
For technical support, troubleshooting assistance, or warranty claims, please contact your authorized KOSO dealer or visit the official KOSO support website. When contacting support, please have your product model number (360-351) and proof of purchase readily available.
KOSO Official Website: www.koso.com.tw