YA-90 CDI(4DM)
Product Number：THH-2008
A-90 CDI – 4DM Type
THH-2008｜Electronic Ignition Unit
Classic Two-Stroke 90cc-Class Application｜4DM Ignition System
The THH-2008 YA-90 CDI Ignition Unit is designed for the electronic ignition system of the Yamaha YA-90 series two-stroke engine.
Using the 4DM-type CDI ignition configuration, the unit provides an electronic ignition control solution for CDI replacement, motorcycle repair, restoration and aftermarket applications.
1. Product Specifications
| Item | Specification |
|---|---|
| Product Name | YA-90 CDI Electronic Ignition Unit |
| English Name | YA-90 CDI Ignition Unit |
| THH Model | THH-2008 |
| Application | Yamaha YA-90 |
| CDI Type | 4DM Type |
| Ignition System | Capacitor Discharge Ignition (CDI) |
| Engine Type | 2-Stroke Gasoline Engine |
| Engine Class | 90cc Class |
| Main Application | Motorcycle Ignition System |
| Main Function | CDI Replacement / Ignition Control |
| Installation | OEM-Style Replacement |
| Market | Repair / Restoration / Aftermarket |
Note: Compatibility should be confirmed by checking the original CDI connector, pin configuration, wiring and ignition-system specifications.
2. Key Features
YA-90 Application
Designed for the ignition system of the Yamaha YA-90 two-stroke motorcycle.
4DM-Type CDI
The THH-2008 uses the 4DM-type CDI ignition configuration, working together with the original trigger signal, ignition coil and spark plug system.
Stable Electronic Ignition
The CDI electronically controls the storage and discharge of ignition energy, allowing the ignition coil to generate high-voltage output for spark ignition.
Classic Two-Stroke Replacement
Developed for the repair and replacement needs of classic two-stroke motorcycles.
Ideal for Restoration
Suitable for:
- CDI replacement
- Classic motorcycle restoration
- Ignition system repair
- Motorcycle workshops
- Spare-parts distributors
- Aftermarket applications
3. CDI Operating Principle
The basic ignition sequence is:
Engine Rotation
↓
Ignition Trigger Signal
↓
CDI Signal Processing
↓
Ignition Energy Discharge
↓
Ignition Coil Voltage Transformation
↓
High-Voltage Spark
↓
Spark Plug Ignition
↓
Engine Combustion
The CDI functions as a key electronic control component within the ignition system.
Contact Us
- Company: Hsin Hua Electric Innovation Co., Ltd.
- Address: No.1, Anxin 2nd Rd, Andong Village, Annan Dist., Tainan City 709007, Taiwan
- Phone: +886-6-2456156
- Website: www.thh-electric.com.tw
✨ Choose the 6G6-85540-00 High-Performance CDI Ignition Module for stronger power and smoother operation of your outboard engine! ✨
We also offer the following CDI (Capacitor Discharge Ignition) products.
1️⃣ SUZUKI
- 32900-93911 ➝ 9.9 / 15 HP
- 32900-94470 ➝ 40 HP
2️⃣ TOHATSU
- 3G2-06060-2 ➝ 9.9 / 15 / 18 HP
3️⃣ YAMAHA
- 63V-85540-00 / 63V-85540-01 ➝ 9.9 / 15 HP
- 66T-85540-00 / 66T-85540-01 ➝ 40 HP
- 688-85540-00 ➝ 75 HP
- 688-85540-16 ➝ 75 / 90 HP
- 695-85540-10 / 695-85540-12 ➝ 15 / 25 HP
- 6B4-85540-01 / 6B4-85540-02 ➝ 9.9 / 15 HP
- 6E5-85540-00 ➝ 115 HP
- 6E5-85540-12 ➝ 115 / 130 HP
- 6F5-85540-22 ➝ 40 HP
- 6F6-85540-00 / 6F6-85540-01 ➝ 40 HP
- 6G5-85540-12 ➝ 150 / 175 / 200 HP
- 6G6-85540-00 ➝ 200 / 225 HP