Mercury Mariner 2.5-60 HP 2-Stroke Repair & Service Manual 1998-2006

SKU: B725-006

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Mercury Mariner Outboard Repair Manual 2.5-60 HP 2-Stroke 1998-2006
Mercury Mariner Outboard Repair Manual 2.5-60 HP 2-Stroke 1998-2006
Mercury Mariner Outboard Repair Manual 2.5-60 HP 2-Stroke 1998-2006
Mercury Mariner Outboard Repair Manual 2.5-60 HP 2-Stroke 1998-2006
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Item Description

The Mercury Mariner Repair Manual by Clymer covers 1998 to 2006 Mercury Mariner 2.5-60 HP 2-stroke outboard motors. The Clymer manual is considered the most complete and reliable do-it-yourself manual on the market and is a respected source of information and tips. The manual includes everything you need to know to troubleshoot, service and repair your 1998- 2006 Mercury mariner motor. The repair and service steps feature clear, concise directions, quality photographs, helpful diagrams and exploded views to enhance the home mechanic's understanding of the engine.

This manual is designed for 1998 to 2006 Mercury Mariner 2.5-60 HP 2-stroke outboard motors, including the following:

  • 2.5 HP, 3.3 HP, 4 HP, 5 HP, 6 HP, 8 HP, 9.9 HP
  • 15 HP
  • 20 HP, 20 Jet, 25 HP
  • 30 HP, 30 Jet
  • 40 HP, 45 Jet
  • 50 HP
  • 60 HP

Mercury Mariner Repair Manuals ship for free to the continuous 48 states. Manuals are backed by our 30-day money-back guarantee. For more information, please call us at 1-214-385-4890 or 1-888-255-2950 Monday through Friday from 8 a.m. to 3 p.m. CT.


Book Excerpt: 1998-2002 Mercury Mariner 2.5-60 HP 2-Stroke Repair and Service Manual

GEARCASE: GEAR HOUSING

REMOVAL/INSTALLATION (2.5 HP MODELS)

The water pump can be serviced without gear housing removal on 2.5 hp models. Refer to Water Pump in this chapter.

The square drive shaft runs inside a removable support tube in the drive shaft housing. The tube must seal into the lower crankshaft seal.

  1. Disconnect and ground the spark plug lead to the power head to prevent accidental starting.
  2. Close the fuel shutoff valve.
  3. Tilt the outboard to the fully up position.
  4. Remove the upper mounting bolt, lockwasher and flat washer at the leading edge of the gearcase, and the lower mounting bolt, lockwasher and flat washer directly above the propeller. Then pull the gear housing from the drive shaft housing and place the gearcase on a clean workbench.
  5. If the square drive shaft and support tube does not come out with the gearcase, remove the drive shaft and support tube from the drive shaft housing.
  6. Remove the water tube seal from the gearcase.
  7. To install the gearcase, tilt the outboard to the fully up position.

OIL INJECTION SYSTEMS
All models are lubricated by mixing oil with the gasoline. On models that are not oil-injected, the oil and gasoline are premixed in the fuel tank(s) by the boat operator.

The recommended fuel/oil mixture for normal operation in all models without oil-injection is 50 parts of fuel to 1 part of oil (50:1). For 6 gal. (22.7L) of fuel, add one pint (16 fl. oz. (473 mL) of oil

On oil-injected models, the oil automatically mixes with the gasoline. An engine-mounted oil pump injects oil into the fuel pump inlet line. All oil-injected models are equipped with a variable-ration oil-injection pump.

The fuel/oil ration changes with throttle position. At wide-open throttle the fuel/oil ratio is approximately 50-60:1, while at idle speeds the ratio is approximately 80-100:1.

The engine components are lubricated as the fuel and oil mixture passes through the crankcases and into the combustion chambers. The fuel/oil ratio required by the engine varies with engine load and speed. Oil demands are always highest at wide-open throttle.

Pick up your copy of the Clymer B725 manual today from The Motor Bookstore, an authorized distributor, so you can start saving tomorrow.



Below: Mercury Mariner 2.5-60HP 2 Stroke Repair Manual - Crankshaft Assembly Sample Page. Copyright Clymer.
1998-2006 Mercury/Mariner Repair Manual - Crankshaft Assembly Sample Page
Subject: 1998, 1999, 2000, 2001, 2004, 2005, 2006 Mercury Mariner 2.5-60 HP 2-Stroke service, maintenance, repair instructions. ISBN-10: 1620921332 | ISBN-13: 9781620921333 | Clymer B725

Specifications
  • Publisher: Clymer Manuals
  • Pages: 480 - Hundreds of b&w photos and illustrations
  • Binding: Paperback - 8.5 x 11 inches
  • ISBN: 978-1-62092-133-3
  • Years: 1998 - 2006
Table of Contents
TABLE of CONTENTS:
  • General information
  • Tools and techniques
  • Troubleshooting
  • Lubrication, maintenance and tune-up
  • Synchronization and linkage adjustments
  • Fuel system
  • Ignition and electrical systems
  • Power head
  • Gearcase
  • Jet drive
  • Trim and tilt systems
  • Oil injection systems
  • Manual rewind starters
  • Remote control
  • Wiring diagrams
Questions & Answers about Mercury Mariner Outboard Repair Manual 2.5-60 HP 2-Stroke 1998-2006

Questions & Answers about Mercury Mariner Outboard Repair Manual 2.5-60 HP 2-Stroke 1998-2006

Ask a question about Mercury Mariner Outboard Repair Manual 2.5-60 HP 2-Stroke 1998-2006.
Customer Reviews

REVIEWS

D McLean verified customerSeptember 4, 2020
Clymer outboard shop manual
The book was shipped immediately after I ordered it and was exactly as described.
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Vincent Haramut verified customerJanuary 3, 2020
Clymer mercury 50
AWSOME !! Clymer is the best !!!
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dan verified customerJune 9, 2017
lacking!
overall very informative, does not cover all makes and models from 2.5-60hp as advertised, didn't cover my model 25hp merc ml 05 2strk!
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Steve B verified customerSeptember 3, 2015
A definite must have
I needed to replace the prop seals and water pump on my 1998 Mercury 9.9 two stroke. This manual was very comprehensive & straight forward. I definitely recommend buying this book if you plan to do any type of mainance on a marine motor. I give this book 4.5 out of 5 stars.
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Mercury Mariner 2.5-60 HP 2-Stroke Repair & Service Manual 1998-2006
$34.85
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