CHAPTER THREE / TROUBLESHOOTING
Safety precautions / Operating requirements / Test and repair equipment /
Starting system / AC alternating current lighting coil / Battery charging system
/ Electrical accessories / Ignition system / Capacitor discharge ignition (2.5,
3.3, 4 and 5 hp) / Alternator driven ignition (electronic advance [20-25 hp and
20 Jet]) / Alternator drive ignition (mechanical advance [6-60 ho and 30-45
Jet]) / Capacitor discharge module (CDM) ignition (30 and 40 hp [2-cylinder]) /
Capacitor discharge module (CDM) ignition (40-60 hp [serial No. 0G531301-on]) /
CDM module resistance tests (optional) / Fuel system / Fuel primer and
enrichment systems / Engine temperature and overheating / Engine /
Specifications
CHAPTER FOUR / LUBRICATION, MAINTENANCE AND TUNE-UP
Hour meter / Fuels and lubrications / Off-season storage / Anticorrosion
maintenance / Engine submersion / Cooling system flushing / Tune-up /
Specifications
CHAPTER FIVE / SYNCHRONIZATION AND LINKAGE ADJUSTMENTS
2.5 and 3.3 hp models / 4 and 5 hp models / 6, 8, 9.9 and 15 hp models / 20-25
hp and 20 Jet models / 30 and 40 hp (2-cylinder models) / 40 hp and 30 Jet
models (4-cylinder models) / 50-60 hp and 45 Jet models (prior to serial No.
0G531301) / 40, 50 and 60 hp (serial No. 0G531301-on) / Specifications
CHAPTER SIX / FUEL SYSTEM
Fuel pump / Carburetors / 2.5 and 3.3 hp carburetor / 4 and 5 hp carburetor
(with integral fuel pump) / WMC series carburetor (with integral fuel pump [6-25
hp and 20 Jet]) / WMA series carburetor (40 hp [4-cylinder] and 30 Jet models) /
WME series carburetor (30 and 40 hp [2- and 3-cylinder], 50-60 hp and 45 Jet) /
Fuel primer solenoid (6-25 hp and 20 Jet [remote control models]) / Fuel primer
valve (30-60 hp and 30 and 45 Jet [remote control models]) / Antisiphon devices
/ Fuel filters / Fuel tanks / Fuel hose and primer bulb / Reed valve service /
Fuel bleed (recirculation) system / Specifications
CHAPTER SEVEN / IGNITION AND ELECTRICAL SYSTEMS
Battery / Battery charging system / Fuses / Starting systems / Ignition systems
/ Capacitor discharge ignition (2.5, 3.3 4 and 5 hp) / Alternator driven
capacitor discharge ignition (6-60 hp and 30 and 45 Jet) / Capacitor discharge
module (CDM) ignition / Specifications
CHAPTER EIGHT / POWER HEAD
Power head break-in / Lubricants, sealant and adhesives / Sealing surfaces /
Fasteners and torque / Removal installation / Disassembly / Cleaning and
inspection / Assembly / Specifications
CHAPTER NINE / LOWER GEARCASE AND JET DRIVE UNIT
Lower gearcase / Gear case operation / Gear ratio / High-altitude operation /
Service precautions / Corrosion control / Gearcase lubrication / Propeller /
Trim tab adjustment / Gear housing / Water pump / Gearcase disassembly /
assembly / Jet drive models / Jet pump unit maintenance / Jet pump unit service
/ Bearing housing / Water intake housing liner / Specifications
CHAPTER TEN / POWER TRIM AND TILT SYSTEMS AND POWER STEERING SYSTEM
Trim and tilt systems / Manual tilt systems / Power trim and tilt systems /
Power trim and tilt system service / Specifications
CHAPTER ELEVEN / OIL INJECTION SYSTEM
Autoblend II injection system / Constant-ratio oil injection--40 hp and 30 Jet
(4-cylinder) / Variable-ratio oil injection / Specifications
CHAPTER TWELVE / MANUAL REWIND STARTER AND REMOTE CONTROL
Manual rewind starters / Remote controls / Specifications
INDEX
WIRING DIAGRAMS
Models Covered 1994-1997 Mercury / Mariner 15 HP
1994-1997 Mercury / Mariner 2.5 HP
1994-1997 Mercury / Mariner 20 HP
1994-1997 Mercury / Mariner 20 Jet
1994-1997 Mercury / Mariner 25 HP
1994-1997 Mercury / Mariner 3.3 HP
1994-1997 Mercury / Mariner 30 HP
1994-1997 Mercury / Mariner 30 Jet
1994-1997 Mercury / Mariner 4 HP
1994-1997 Mercury / Mariner 40 HP
1994-1997 Mercury / Mariner 45 Jet
1994-1997 Mercury / Mariner 5 HP
1994-1997 Mercury / Mariner 50 HP
1994-1997 Mercury / Mariner 6 HP
1994-1997 Mercury / Mariner 60 HP
1994-1997 Mercury / Mariner 8 HP
1994-1997 Mercury / Mariner 9.9 HP
Part Number Variations B723
B-723
156-B723
18-0086
180086
47-0086
QS 18-0086
QS180086
6207278
