Name: Starter Motor Solenoid Relay - Hyosung RT125D RX125 GD250R
SKU: 31800HG5100-GD
Availability: InStock

Starter Motor Solenoid Relay – Hyosung RT125D RX125 GD250R

Estimated delivery dates: May 2, 2026 - May 4, 2026

£19.99

💎 STARTER SOLENOID RELAY SINGLE CYLINDER | FIX STARTING ISSUES

Problem Solved: Restore reliable ignition instantly on your single-cylinder Hyosung. This high-quality aftermarket relay replaces a failed solenoid, fixing clicking noises and starting failures. Features the correct plug for a direct fit—no wire cutting needed.

✅ Plug & Play: Correct harness connector—direct swap guaranteed.
🛠️ Compatibility: Fits RT125, RX125, and GD250 single-cylinder models.
⚙️ Reliability: Common replacement part to solve frustrating starting problems.
📦 What’s Included: 1x Aftermarket Starter Solenoid Relay.

💡 TECH NOTE: This version is specifically for single-cylinder bikes. It will NOT fit the V-Twin GT/GV models!

Description

A starter solenoid is a critical component for life on the road. When it fails, you’re stuck. This quality aftermarket unit ensures your single-cylinder RT125, RX125, or GD250 starts reliably every time. We ensure the plug is an exact match for your factory harness, so you avoid the frustration of “universal” parts that require splicing wires.

💎 Get Back on the Road with the Right Part

A reliable electrical fix that restores essential starting functionality and peace of mind.

Direct Fit Correct harness plug.	OEM Reference 31800HG5100.
UK Stock Immediate dispatch.	Trusted Quality Aftermarket reliable unit.

🔍 Starting Troubleshooting Guide

Symptom	Possible Cause
Continuous “Clicking” noise	Holding coil is stuck or contacts are failing to seal properly.
One “Click” but no rotation	Poor connection or broken solenoid.
Starter keeps spinning after button release	Burnt contacts inside solenoid (fused).

📜 Confirmed Fitment Guide

✅ RT125 & RT125D: All models (Carb).
✅ RX125 & XRX125: All models.
✅ GD250R & GD250N: All models up to 2020.

💡 RECOMMENDED PAIRING:
Always ensure a solid electrical connection. Clean your battery terminals and apply [ACF-50] to prevent corrosion and future starting problems!

🔧 Install Tips

Safety First: Disconnect the negative battery terminal before starting any work on the solenoid.
Easy Swap: Unplug the old unit, unbolt the main power cables, and fit this one in its place.

📧 FITMENT QUESTIONS? Email us with your bike details. For technical help or community opinions, visit the HyoRiders Forums.