1. Product Overview
1.1 Product Description
The Ymiko Voltage Regulator Rectifier is a critical component designed to maintain the electrical system of compatible vehicles. It converts alternating current (AC) generated by the stator into direct current (DC) and regulates the voltage to prevent overcharging the battery and damaging electrical components.
1.2 Key Features
- OEM Specifications: Manufactured to original equipment manufacturer specifications for reliable performance and seamless integration.
- Durable Construction: Made from high-quality aluminum alloy and ABS materials for maximum durability and resistance to wear in various operating conditions.
- Direct Replacement: Designed as a direct replacement for existing or faulty voltage regulators, restoring electrical performance.
1.3 Compatibility
This voltage regulator rectifier is specifically designed for the following models:
- LINHAI 260 ATV
- LINHAI 300 ATV
- LINHAI 300cc ATV
- SUZUKI DR650 Motorcycle

Image: The Ymiko Voltage Regulator Rectifier shown alongside a motorcycle, indicating its intended application and compatibility.
2. Specifications
| Specification | Detail |
|---|---|
| Item Type | Rectifier |
| Material | Aluminium Alloy, ABS |
| Rectifier Size | Approx. 79 x 78 x 28mm (3.11 x 3.07 x 1.1in) |
| Adapter Size | Approx. 30.5 x 15mm (1.2 x 0.59in) |
| Manufacturer Part Number | Ymikocgw7b4go5y4939 |
| Item Weight | 249 g |
| Country of Origin | China |

Image: Detailed dimensions of the rectifier unit and its adapter, crucial for fitment verification.
3. Installation Guide
3.1 Before Installation
Ensure the vehicle's ignition is off and the battery is disconnected before beginning installation to prevent electrical shock or damage to components. Verify that the new rectifier matches the specifications and connector type of the original part.
3.2 Wiring Instructions
The installation process is designed to be straightforward. Follow these wiring guidelines:
- Connect the Green Wire to the Power Negative (-) terminal.
- Connect all Other Wires (Red, Yellow) to the Power Positive (+) terminals as per the original wiring configuration.

Image: Visual representation of the rectifier's wiring, highlighting the green wire for negative and other wires for positive connections.
3.3 Connection Method Diagram
Refer to the diagram below for a detailed pinout of the connector:

Image: A clear diagram detailing the pin assignments for the rectifier's connector, including Battery (+), Ground (GND), and Power Coil connections.
- Pin 1: Battery (+)
- Pin 2: GND (Ground)
- Pin 3: Power Coil
- Pin 4: Power Coil
- Pin 5: Power Coil
3.4 Physical Installation
Mount the rectifier securely in the designated location on your vehicle. Ensure all connections are firm and properly insulated. After installation, reconnect the battery and test the electrical system to confirm proper voltage regulation.
4. Operation
The Ymiko Voltage Regulator Rectifier operates automatically once installed and the vehicle is running. Its primary function is to convert AC voltage from the stator into stable DC voltage for the vehicle's electrical system and to charge the battery. It also prevents overvoltage conditions that could damage sensitive electronic components.
5. Maintenance
This voltage regulator rectifier is designed for minimal maintenance. Periodically inspect the unit and its wiring for any signs of corrosion, loose connections, or physical damage. Ensure the cooling fins are free from debris to allow for proper heat dissipation. No internal servicing is required.
6. Troubleshooting
If you experience issues with your vehicle's electrical system after installing the rectifier, consider the following:
- No Battery Charging: Check all wiring connections for looseness or corrosion. Verify the stator is producing AC voltage.
- Overcharging/Undercharging: Confirm the rectifier is correctly installed and that the battery itself is in good condition. A faulty battery can sometimes mimic rectifier issues.
- Intermittent Electrical Problems: Inspect for damaged wires or connectors that might be causing inconsistent power delivery.
If problems persist, it is recommended to consult a qualified mechanic or an automotive electrical specialist.
7. Warranty and Support
For warranty information or technical support regarding your Ymiko Voltage Regulator Rectifier, please refer to the product packaging or contact Ymiko customer service directly through their official channels. Keep your purchase receipt as proof of purchase.