As a Motorcycle Start Relay supplier, Max Trading's GY6-125 Motorcycle Start Relay is a core "current conversion hub" in the engine starting system, specifically developed for the characteristics of 12V electrical systems and the GY6 125 motorcycle starter motor. Utilizing the principle of electromagnetic induction, it solves the matching problem between the 5A low-current switch and the 50-100A high-current motor in the starting circuit.
In the starting system of the GY6 125 motorcycle, the start relay functions as a key hub, managing the core tasks of power transmission and control. Here’s how it works
When the car key is turned to the "ON" position and the start button is pressed, the internal coil of the GY6-125 Motorcycle Start Relay is energized, generating electromagnetic attraction that closes the contacts. This allows the battery's high voltage and current to flow through the relay and power the starter motor.
The starter motor, now powered by the high current, starts running, which drives the crankshaft and spins in sync with the magnet. This process works in conjunction with the ignition system to complete the engine starting cycle.
Once the start button is released, the current supply to the relay coil is cut off. The electromagnetic force disappears, and the contacts separate quickly with the help of the reset spring. This action cuts off the power supply to the starter motor in a timely manner, preventing continuous idling.
At this point, the starting gear disengages from the flywheel due to the spring’s elasticity, effectively avoiding mechanical damage caused by prolonged idle operation of the starter motor.
Electromagnetic Current Control: Efficiently manages the transition from small currents (below 5A) to large currents (50-100A), protecting sensitive components like the ignition switch.
Reliable Power Transmission: Ensures a stable power supply to the starter motor, allowing smooth engine start-up every time.
Quick Cut-Off Function: The GY6-125 Motorcycle Start Relay features a rapid disengagement of contacts once the start button is released, preventing unnecessary strain on the motor and ensuring the longevity of the system.
Durable Design: Engineered to withstand the high current demands of the starting system, ensuring consistent and reliable performance in various operational conditions.
Core components: Made of purple copper contact group (with better conductivity than ordinary brass), coil wound with 0.3mm enameled wire, cast aluminum base (enhanced heat dissipation), shell made of flame-retardant ABS plastic, waterproof level up to IPX4, suitable for humid environments at the bottom of scooters.
Interface characteristics: 4-pin plug-in design, separated into two circuits - control circuit (2 thin wires, connected to ignition switch and start button) and main circuit (2 thick wires, connected to battery and starter motor). The plug-in is marked as "B" (positive terminal of battery), "M" (motor), "S" (start signal), "E" (ground) to anti-misconnection.
|
GY6-125 motorcycle start relay |
Value |
|
Rated working voltage |
DC 12V |
|
Coil resistance |
15-25Ω |
|
Contact rated current |
DC 100A（30s） |
|
Pull-in voltage |
≥15000 on-off cycles |
|
Lifespan |
4 lines |
|
Size |
35×30×25mm |
Max Trading is well aware of the importance of ignition system accessories for motorcycle safety, and has established a full chain quality control system from raw materials to finished products to ensure the reliability of every product with professional standards.
Strict selection of raw materials: The core chip is from an internationally renowned brand, the ignition coil frame is made of high-temperature resistant PA66 material, and the wire harness interface is made of tin plated copper core to eliminate quality hazards from the source;
Production process control: Introducing automated production lines to achieve precise control of key processes such as welding and packaging. Each device undergoes 120 ℃ high-temperature aging testing, 100000 vibration testing, and IP65 dust and waterproof testing to guarantee stable operation in extreme environments, with a failure rate controlled below 0.2%;
Complete compliance certification: All kinds of products have passed ISO9001 quality management system certification, CE EU safety certification, high-end models comply with North American EPA emission standards, solder joints use lead-free technology, meet regulatory requirements in different regions around the world, and provide professional compliance guarantee for foreign trade business;
Warranty commitment: With confidence in product quality, we provide industry-leading 1-3 year warranty services, far exceeding the average level of our peers. Our professional after-sales team is ready to respond to quality issues at any time, permitting customers to cooperate with peace of mind.
A1: The relay acts as a "current conversion hub" in the starting system of the GY6-125 motorcycle. It efficiently manages the transition from small to large currents, protecting sensitive components like the ignition switch while providing sufficient power to the starter motor for a smooth engine start.
A2: The relay is designed for durability and longevity, with a lifespan of up to 15000 on-off cycles. Its high-quality components, including the purple copper contact group, ensure stable and reliable performance throughout its life.
A3: While the GY6-125 Starter Relay is designed specifically for the GY6 125 motorcycle, it can be adapted to other motorcycles or 12V power supply systems with similar requirements. It is crucial to ensure the current and voltage specifications match.
A4: The relay uses electromagnetic attraction to manage the transition between small current (below 5A) and large current (50-100A). This prevents damage to sensitive components like the ignition switch while ensuring the starter motor receives enough current for a smooth engine start.
A5: The relay has undergone extensive testing, including 120℃ high-temperature aging, 100,000 vibration cycles, and IP65 dust and waterproof testing. This ensures it performs reliably in extreme conditions and environments.
A6: Yes, Max Trading provides an industry-leading 1-3 year warranty on all products, including the GY6-125 Starter Relay. This gives you peace of mind knowing that any quality issues will be addressed promptly by our professional after-sales team.
A7: The relay has a 4-pin plug-in design with clearly marked terminals: "B" (battery positive), "M" (motor), "S" (start signal), and "E" (ground). Follow the wiring diagram provided to connect the relay to the ignition switch, start button, battery, and starter motor.
Address
No.71, South Haiyan Road, Yinzhou District, Ningbo City, Zhejiang Province, China
Tel
