2018 Mercury 15 & 20 HP EFI Four-Stroke Outboard Repair Manual PDF

A comprehensive service and repair manual for the Mercury 15 and 20 hp EFI FourStroke outboards. It covers the complete outboard: specifications and maintenance, troubleshooting, ignition, charging and starting, EFI fuel system, powerhead, cooling, mid-section and power tilt, gear housing, controls, tiller handle and recoil starter.

This manual applies to the Mercury 15 and 20 hp EFI FourStroke outboards in manual-start, electric-start, tiller and power-tilt versions, including the ProKicker models. It is service manual 90-8M0125265, dated November 2017 (© 2018).

The manual covers many topics, including:

• Specifications, maintenance, general information and outboard installation
• General troubleshooting
• Ignition, charging and starting systems
• EFI fuel system operation, troubleshooting, diagnostics and service
• Cylinder block, crankcase and cylinder head
• Oil pump and cooling system
• Clamp and swivel bracket, driveshaft housing and power tilt
• Gear housing
• Throttle and shift linkage and tiller handle
• Recoil starter
• Color wiring diagrams

The manual is divided into the following sections:

1. Important Information
2. Electrical
3. Fuel System
4. Powerhead
5. Mid-Section
6. Gear Housing
7. Attachments / Control Linkage
8. Manual Starter
9. Color Diagrams

The electronic manual is a 406-page PDF, available to download right after checkout. It is fully text-searchable and has detailed clickable bookmarks for every chapter and procedure. It works on Windows, Mac, tablets and phones, and you can print only the pages you need.

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