Mercury XR2 User Manual

XR2 XR2 SS
1998, Mercury Marine 90Ć848717980 298
for your purchase of one of the finest outboards available.
You have made a sound investment in boating pleasure.
Your outboard has been manufactured by Mercury Ma-
rine, a world leader in marine technology and outboard
manufacturing since 1939. These years of experience
have been committed to the goal of producing the finest
quality products. This led to Mercury Marine’s reputation
for strict quality control, excellence, durability, lasting per-
formance and being the best at providing after-the-sale
support.
Please read this manual carefully before operating your
outboard. This manual has been prepared to assist you in
the operation, safe use and care of your outboard.
All of us at Mercury Marine took pride in building your out-
board and wish you many years of happy and safe boat-
ing.
Again, thank you for your confidence in Mercury Marine.
Mercury Hi-Performance,
N7480 County Road “UU”
Fond du Lac, WI 54935-9585

Mercury XR2 Specifications

General

MODEL	XR2
Horsepower	180 (134kw)
Propshaft Kilowatts1	194
Full Throttle RPM Range	6000-7000
Idle RPM in Forward Gear	650-750
Maximum Timing	25° BTDC
Idle Speed Pickup Timing	2° ATDC
Gear Ratio	1.87:1
Piston Displacement	122 cu. in. (2.0L/1998cc)
Bore	3.125 in. (79.5 mm)
Stroke	2.65 in. (67 mm)
Firing Order	1-2-3-4-5-6
Recommended Spark Plug	NGK-BUHW (P/N 33-97180)
Fuel Pressure	5 - 6 psi
Recommended Gasoline	Refer to Fuel Section
Recommended Oil	Refer to Fuel Section
Recommended Gear Case Oil	Quicksilver Hi-Performance Gear Lube (92-816026A4)
Gear Case Lubricant Ca- pacity	22.5 fl. oz. (666 ml)
Charging System Output	16 amps @ 7000 RPM
Battery Rating	Minimum reserve capacity rating of 100 minutes and CCA of 350
Water Pres. @ WOT	15 PSI (103.4 kPa)

Weight and Dimensions

Weight	350 lbs. (159 kg)
Transom Height	Short Shaft = 15” (381mm) Long Shaft = 20” (508mm)

Summary

Outboard General Information

Boater's Responsibilities

Boat Horsepower Capacity

Remote Steering Safety

Lanyard Stop Switch Function

Stops engine if operator is ejected. Ensure proper connection.

Lanyard Stop Switch Operation

Explains accidental activation hazards and importance of connection.

Lanyard Stop Switch Hazards

Details hazardous situations from unintended switch activation.

Protecting People in Water

Exercise caution, slow down, and stop the engine near people in water.

Exhaust Emissions and CO Poisoning

Poor Ventilation Hazards

Outboard Installation

Outboard Installation Procedure

Outboard must be correctly installed with four mounting bolts.

Propeller Selection

Transporting Boat and Outboard

Fuel and Oil

Gasoline Recommendations

Use unleaded gasoline. Avoid alcohol content if possible.

Oil Recommendation

Use Mercury Hi-Performance Synthetic Blend 2-Cycle Oil.

Outboard Features and Controls

Warning System

Outboard warning horn indicates engine overheat or low oil.

Warning System: Engine Overheat

Explains continuous horn for overheat and troubleshooting steps.

Power Trim and Tilt Operation

Power Trim Hazards

Trimming In/Out Effects

Outboard Operation

Pre-Starting Check List

Checklist of items to verify before starting the engine.

Operating in Shallow Water

Engine Break-in Procedure

Detailed steps for breaking in the new outboard engine.

Starting The Engine

Step-by-step guide to starting the outboard engine.

Starting The Engine - Flooding and Water Check

How to handle a flooded engine and check water flow.

Gear Shifting

Proper procedure for shifting between forward, neutral, and reverse.

Stopping The Engine

Outboard Maintenance

Outboard Care and Maintenance Schedule

Importance of periodic inspections and maintenance for safety and dependability.

Inspection and Maintenance Schedule

Schedule for maintenance tasks before, after use, and at intervals.

Scheduled Maintenance Tasks

Maintenance tasks for every 25, 50 hours, and before storage.

Flushing the Cooling System

Procedure to flush internal water passages with fresh water after use.

Flushing System Safety and Procedure

Fuel System Maintenance

Water Separating Fuel Filter

Steering Link Rod Fastener Safety

Corrosion Control Anodes

Propeller Replacement Safety

Safety precautions and steps for removing and replacing the propeller.

Propeller Replacement Procedure

Instructions for installing propellers, including greasing shaft and torque.

Gear Case Lubrication

Gear Case Lubricant Level and Refilling

Submerged Outboard Service

Outboard Storage

Storage Preparation

Storage Fuel System Preparation

Protecting Internal Engine Components

Troubleshooting Guide

Starter Motor Issues

Possible causes and solutions if the starter motor does not crank.

Engine Will Not Start

Possible causes and solutions when the engine fails to start.

Engine Overheating

Identifies continuous horn for overheat and its possible causes.

Engine Runs Erraticall

Performance Loss