Seloc Service Manual, Mercury Outboard 1965-1989 40-115HP 3-4 Cylinder 2-Stroke Models

This Seloc service manual is a complete illustrated repair and troubleshooting guide for Mercury outboard engines built 1965-1989, covering 40-115HP, 3 and 4-cylinder, 2-stroke models. It is written for the do-it-yourself boat owner as well as the professional marine technician, walking through maintenance and repair procedures with hundreds of drawings, exploded views, photos, and reference tables.

Each procedure in the manual carries a Skill Level Rating from 1 to 4 wrenches, showing at a glance how difficult a job is before you start, and Special Tool icons flag any step that calls for an OEM or electronic testing tool. Beyond step-by-step repair procedures, the manual includes full troubleshooting charts, engine specifications, and wiring diagrams for the covered engine range, making it a single reference for diagnosing and servicing these Mercury outboards.

Because the manual is matched specifically to 1965-1989 Mercury outboards in the 40-115HP, 3-4 cylinder, 2-stroke range, it is intended for owners and shops working on engines within that coverage. Mercury outboards outside this HP or year range require a different Seloc manual.

Specifications

• Brand: Seloc
• Manufacturer Part Number: 118-01406
• Engine Coverage: Mercury Outboard 1965-1989, 40-115HP, 3-4 Cylinder, 2-Stroke Models
• Format: Illustrated repair manual, 1 count
• Contents: Illustrated procedures, drawings, exploded views, photos, tables, troubleshooting, specifications, and wiring diagrams
• Skill Level Ratings: 1 to 4 wrench difficulty rating system
• Recommended Uses: Troubleshooting, maintenance, and repair of covered outboard engines
• Weight: 2.7875 pounds

Fitment

• Mercury Outboard, 40-115HP, 1965-1989, 3-4 Cylinder, 2-Stroke Models

Frequently Asked Questions

What Mercury outboard engines does this manual cover? Seloc manual 118-01406 covers Mercury outboard engines built from 1965 to 1989 in the 40-115HP range, specifically 3 and 4-cylinder, 2-stroke models.

Is this manual for 2-stroke or 4-stroke engines? It covers 2-stroke Mercury outboard engines only, within the 40-115HP, 3-4 cylinder range for model years 1965-1989.

What horsepower range does 118-01406 cover? This manual covers the 40-115HP range of Mercury outboard engines from 1965-1989.

How many cylinders are covered by this manual? Manual 118-01406 covers 3 and 4-cylinder Mercury outboard engines within the 1965-1989, 40-115HP coverage range.

What is included in the Skill Level Rating system? Each repair procedure in this Seloc manual is rated from 1 to 4 wrenches, indicating the degree of difficulty, so a technician can gauge job complexity before starting.

Does this manual require special tools to follow? Some procedures do. Special Tool icons throughout the manual flag steps where an OEM or electronic testing tool is needed to complete the job correctly.

What topics does the manual cover beyond repair steps? Along with step-by-step illustrated procedures, 118-01406 includes troubleshooting guidance, engine specifications, and wiring diagrams for the covered Mercury outboard range.

How much does this manual weigh? The Seloc 118-01406 service manual weighs 2.7875 pounds.

How is this manual different from 118-01408? 118-01406 covers Mercury outboards from 1965-1989 in the 40-115HP range, while 118-01408 covers the higher 90-300HP range for the same 1965-1989 model years. Choose the manual that matches your engine's horsepower.

Is the manual illustrated? Yes, 118-01406 includes hundreds of drawings, exploded views, and photos alongside the written repair procedures.

Who is this manual intended for? It is written for both DIY boat owners and professional marine technicians servicing Mercury outboard engines in the 1965-1989, 40-115HP, 3-4 cylinder, 2-stroke range.

What format does the manual come in? 118-01406 ships as a single physical repair manual, one unit per order.