This file is the installation manual for the electronics Sachse digital ignition ZDG3
This manual provides step-by-step instructions for installing the Elektronik Sachse ZDG 3.23 digital ignition system. It covers mounting, electrical connections, and initial setup procedures. The system replaces original ignition units and uses a wasted spark principle for timing. Special attention is given to alignment of the sector disk and light barrier, grounding, and wire crimping. The manual also includes troubleshooting and notes on voltage requirements and component compatibility.
The installation involves removing the alternator cover, mounting the ignition box, aligning the sector disk, wiring the terminals, and adjusting the sector disk to TDC. Grounding is critical, with two ground connections available. The system requires a minimum of 7.5V to operate and is compatible with coils having a primary resistance between 2 Ω – 5 Ω.
| Ignition Type | Digital Ignition |
|---|---|
| Ignition Principle | Wasted Spark |
| Minimum Operating Voltage | 7.5 V |
| Maximum Engine Speed | Up to 12,500 rpm (standard), up to 18,000 rpm (special versions) |
The ignition uses the so called wasted spark principle.
The ignition requires a minimum voltage of 7.5 V to operate.
The system supports up to 12,500 rpm for standard versions and up to 18,000 rpm for special versions.
Bring the right piston to TDC (D marking on the flywheel) and rotate the sector disk precisely into the position as shown in the picture. The position is correct if the LED just goes from on to off.