Official service manual for Mercury Mariner 4, 5, and 6 (4‑stroke) outboard motors with specifications, maintenance procedures, and wiring diagrams.
This service manual provides detailed technical data, safety warnings, and step‑by‑step maintenance instructions for Mercury Mariner 4, 5, and 6 (4‑stroke) outboard motors. It covers specifications, electrical and fuel systems, powerhead, mid‑section, lower unit, and attachment/linkage details, plus color diagrams for water and oil flow.
The document is intended for trained service technicians and dealer mechanics, offering guidance on proper fastener replacement, cleaning practices, battery disconnection, and recommended fluids and tools. Revisions are issued to dealers as needed.
| Horsepower (Model 4) | 4 hp (2.9 kW) |
|---|---|
| Outboard Weight (Short Shaft) | 55 lbs. (25.0 kg) |
| Recommended Fuel | Automotive unleaded gasoline, minimum 87 octane |
| Engine Oil Capacity | 15 fl oz. (450 ml) |
| Ignition Spark Plug | NGK DCPR6E |