90-830234 Service Manual – Mariner/Mercury 75-125HP & Jet

The Mariner/Mercury Service Manual (part number 90-830234) delivers genuine factory instructions for 75-90-100-115-125HP outboards and 65-80 Jet models. Printed in 1995 by Brunswick Corporation, it gives you precise procedures written by the engineers who built the engines.

This manual explains how to maintain the powerhead, cooling, ignition, fuel system, steering, and jet drive. Clear step-by-step tasks show you how to remove, inspect, and reinstall parts without guesswork. Diagrams, wiring schematics, and torque charts make servicing accurate and efficient.

It also includes troubleshooting tables that help you pinpoint issues quickly so you can fix performance problems with confidence. The simple layout makes it easy to follow, saving you valuable workshop time.

Use this Mariner/Mercury Service Manual when rebuilding cylinders, tuning carburetors, or checking compression. Heavy-duty pages stand up to grease and moisture in any repair environment.

Arizona Outboard Dismantlers supplies authentic manuals like this to protect your investment and keep your outboard running strong season after season.