🏷️ Basic Information Identification Make: Mercury Mariner Model: 225/250 EFI/3.0 Litre Marathon/3.0 Litre SeaPro Serial Numbers: US 0D280813 and above 📋 Manual Details Publication Manual Type: Service Repair Manual Language: English File Format: PDF Printable: Yes Compatibility: WINDOWS and MAC Requirements: Adobe PDF Reader Manual Origin: Not scanned ⚙️ Engine Specifications General Engine Type: 2-stroke Displacement: 3.0 litre Power Horsepower 225: 225 hp Horsepower 250: 250 hp Fuel System Fuel Delivery: EFI (Electronic Fuel Injection) 📄 Manual Content Sections Covered Electrical: Included Fuel System: Included Powerhead: Included Mid Section: Included Lower Unit: Included Attachments Control Linkage: Included Target Audience Intended User: Do-it-yourselfer and experienced mechanic Instructions Level Procedure Detail: Step-by-step instructions based on complete disassembly Illustrations Visual Aid Count: Hundreds of photos and illustrations