90-11027-1 Operation & Maintenance Manual – Mariner 75/90/115HP

The Mariner Operation Manual (part number 90-11027-1) provides factory-approved instructions for operating and maintaining 75HP, 90HP, and 115HP Mariner outboard motors. Produced by Brunswick Corporation in 1984, this guide helps boat owners run their engines correctly and keep performance at its peak.

Inside the Mariner Operation Manual, you’ll find easy-to-follow procedures for starting, running, trimming, and shutting down your motor. It includes routine maintenance schedules, fueling directions, gearcase lubrication steps, and safe handling practices. Clear illustrations and concise instructions show everything from control operation to propeller checks.

This manual also covers break-in recommendations, preventive care techniques, and how to troubleshoot basic issues before they become serious. All procedures are written by the engineers who built the engines, giving you assurance that your maintenance follows genuine factory standards.

Whether you’ve just bought a used Mariner outboard or you’re refreshing your knowledge, this manual makes safe and efficient operation simple. Its compact booklet design stores easily on board, ready whenever you need reliable guidance.

Arizona Outboard Dismantlers supplies original factory manuals like this to help you protect your investment, extend engine life, and enjoy dependable performance on the water.