Mercury 2.5 Liter 2-Stroke EFI Wiring Diagram
- Mike Hill
- Nov 24, 2023
- 1 min read
Updated: Sep 21, 2024

This wiring harness color chart is for all 1991 to 2000 EFI "Laser" front-injected Mercury 2.5 Liter 2-Strokes. Most of this fuel injection wiring diagram is common with other Mercury models with ECUs including the 2.4 Liter.
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