2020 Mercury 150, 150 SeaPro & 150 Pro XS FourStroke Outboard Repair Manual PDF

A comprehensive service and repair manual for the Mercury 150, 150 SeaPro and 150 Pro XS FourStroke outboard. It covers the complete outboard: electrical and fault codes, fuel system, powerhead, midsection, gear housings and control linkage.

This manual applies to the Mercury 150, 150 SeaPro and 150 Pro XS FourStroke from serial number 1B905505 and above. It is the August 2020 edition (part number 90-8M0168224).

The manual covers many topics, including:

• Master specifications, maintenance schedule and lubrication points
• Outboard installation and storage
• Ignition, charging and starting systems
• Accessory wire diagrams
• Descriptive fault list and Mercury universal fault codes
• Fuel system theory, troubleshooting, diagnostics and service
• Emissions
• Cylinder block, crankcase, cylinder head, lubrication and cooling
• Clamp and swivel brackets, driveshaft housing, adapter plate and power trim
• Gear housings: right-hand, left-hand and Pro XS
• Throttle and shift linkage, cowl latch
• Color wiring diagrams

The manual is divided into the following sections:

1. Important Information: Master Specifications, Maintenance, General Information, Outboard Installation, Storage
2. Electrical: Ignition, Charging and Starting, Accessory Wire Diagrams, Descriptive Fault List, Mercury Universal Fault Code
3. Fuel System: Theory of Operation, Troubleshooting and Diagnostics, Service Procedures, Emissions
4. Powerhead: Cylinder Block/Crankcase, Cylinder Head, Lubrication, Cooling
5. Midsection: Clamp/Swivel Brackets and Driveshaft Housing, Adapter Plate and Driveshaft Housing, Power Trim
6. Gear Housing: Right-Hand Rotation, Left-Hand Rotation, Right-Hand Rotation (Pro XS)
7. Control Linkage and Attachments: Throttle Linkage, Shift Linkage, Cowl Latch
8. Color Diagrams

The electronic manual is an 834-page PDF, available to download right after checkout. It is fully text-searchable and has detailed clickable bookmarks for every section and procedure. It works on Windows, Mac, tablets and phones, and you can print only the pages you need.

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