Performance CDI Module – Yamaha YFM350 Big Bear / YFM350 Moto-4 ATV – Replaces 3HN-85540-10-00 – 1990–1994
Performance CDI Module – Yamaha YFM350 Big Bear / YFM350 Moto-4 ATV – Replaces 3HN-85540-10-00 – 1990–1994 is backordered and will ship as soon as it is back in stock.
Delivery and Shipping info
Delivery and Shipping info
- Standard delivery (2-4 working days) - £4.99 on eligible UK mainland orders under £50.
- Express delivery - £6.99 on eligible UK mainland orders placed before 2pm.
- Large equipment including international orders are subject to different delivery rates and timescales.
Returns
Returns
Start Your Return Online (Recommended)
- Log In: Sign into your account on our website.
- Select Order: Navigate to your order history and select the item you wish to return.
- Initiate Return: Follow the simple prompts to start your return.
This performance CDI module is a direct replacement for the Yamaha YFM350 Big Bear 4x4 and YFM350 Moto-4 ATV, covering 1990 to 1994 model years. Higher-grade electronic components that exceed OEM specification deliver an enhanced timing curve and raise the rev limiter by approximately 1000 RPM over stock. Compatible with all other OEM parts.
Important: one of the original connectors must be re-installed during fitting. Minimal mechanical experience required.
Manufactured to meet or exceed OEM standards, this unit replaces Yamaha OEM reference 3HN-85540-10-00 and is a dependable aftermarket solution for servicing and upgrading the Yamaha YFM350 Big Bear and Moto-4 range.
Please note: CDI units are non-refundable and are not covered by warranty due to the specific nature of this technology. Please contact us before ordering if you have any questions.
Fitment
| Model | Year Range |
|---|---|
| Yamaha YFM350 Big Bear 4x4 | 1990–1994 |
| Yamaha YFM350 Moto-4 | 1990 / 1992–1994 |
Key Features
| Feature | Detail |
|---|---|
| Component | Performance CDI Module |
| Fitment | Direct replacement — one original connector must be re-installed |
| Performance | Enhanced timing curve, +1000 RPM rev limiter |
| Components | Higher-grade electronics — exceeds OEM spec |
| Compatibility | Works with all other OEM parts |
| OEM Reference | Replaces Yamaha 3HN-85540-10-00 |
OEM Cross-Reference
| OEM Part Number | Manufacturer |
|---|---|
| 3HN-85540-10-00 | Yamaha |
Specifications
| Specification | Detail |
|---|---|
| Component | Performance CDI Module |
| Application | Yamaha YFM350 Big Bear 4x4 / YFM350 Moto-4 |
| Year Range | 1990–1994 |
| Rev Limiter | Raised by approximately 1000 RPM over stock |
| Installation Note | One original connector must be re-installed |
| Warranty | Not covered — CDI units are non-refundable |
| Condition | New |
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
