1997-1999 Mercury Mariner 115hp, 125hp Outboard Service Manual

Wiring diagrams, specifications, and maintenance procedures for Mercury Mariner 115hp and 125hp outboards, covering 1997-1999 models. Ref: 90-830234R3.

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Document Details

keyboard_arrow_down
Document Number / Seller:
27508 / Peter Grant
File Size:
13.81 MB
File Type:
ZIP
Language:
English
Printable:
Yes
Category:
Outboard Motor
Last updated / verified
Apr 12, 2025

Models Covered & Key Technical Specifications

1997-1999 Mercury Mariner 115hp, 125hp Outboard Service Manual Mercury Mariner Outboard Service Manual | 1997-1999 Models

  • Total Horsepower (KW): 115 (85.8) HP (KW)
  • Outboard Weight: 348 lbs. (158kg) for Model 100/115/125
  • Cylinder Block Type: In-Line 4 Cylinder, 2 Cycle, Loop Charged
  • Cylinder Displacement: 112.8 cu. in. (1848.8cc)
  • Stroke Length: 2.93 in. (74.42mm)
  • Gear Ratio: 2.07:1 for Model 100/115/125

Manual Description & Preview

Mercury Mariner Outboard Service Manual: Mercury Mariner 115hp, 125hp, 1997-99 PDF Field-Reference

Technical-Benchmarks: 1997-1999 Models // Specification-Class: Outboard Motor / Mercury Mariner Logic // Technical-Benchmarks: Comprehensive Coverage

Metric Diagnostic-Logic Logic
HORSEPOWER (KW) Model 115 (85.8)
OUTBOARD WEIGHT Model 100/115/125: 348 lbs. (158kg)
CYLINDER BLOCK In-Line 4 Cylinder, 2 Cycle, Loop Charged
CYLINDER DISPLACEMENT 112.8 cu. in. (1848.8cc)
STROKE Length 2.93 in. (74.42mm)
GEAR RATIO 2.07:1 (100/115/125 Models)

Service sections detail:

Fuel System Procedures

Ignition System Diagnostics

Charging System Tests

Starting System Overhaul

Lubrication Points

Properly requiring: Detailed component specifications and troubleshooting procedures for 1997-1999 Mercury Mariner 115hp and 125hp outboard models. This manual documents torque specifications for various components to ensure proper cyclic stress resistance. It covers ignition system checks, fuel system maintenance, and charging system troubleshooting for optimal engine reliability.

FAQ

Are cylinder block specifications, gear ratios, and carburetor main jet sizes listed for the Mercury Mariner 115hp and 125hp models? keyboard_arrow_down

Master specification tables contain detailed technical reference data including displacement, bore type, and gearcase capacity for various outboard models. These sections also include comprehensive charts for main jet identification and fuel system parameters.

Does the manual contain ignition timing values and firing order sequences for the 1997-1999 outboard model range? keyboard_arrow_down

Yes, the timing section lists specifications for idle and maximum advance settings alongside the specific firing order patterns for the covered two-stroke engines.

Can I find edition or revision information to verify the document matches my equipment? keyboard_arrow_down

Cover pages and footer information indicate the manual is identified by the publication number 90-830234R3. This edition reflects technical data accurate as of December 1997.

Is there information regarding the charging system alternator models and their rated outputs? keyboard_arrow_down

Charging system section includes reference tables that correlate specific stator part numbers with alternator output values at designated RPM levels.

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