Mercury 4 SERIES User Manual

2
C
TIMING AND SYNCHRONIZATION
90-857138R1 MAY 2000 Page 2C-1
ELECTRICAL
Section 2C - Timing and Synchronization
Table of Contents
Specifications 2C-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Special Tools 2C-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ignition Timing 2C-3. . . . . . . . . . . . . . . . . . . . . . . . . . . .
TDC Timing Mark Alignment 2C-3. . . . . . . . . . . . .
Check Timing 2C-4. . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications
IGNITION
SYSTEM
Readings taken @
68°F (20°C).
Type
Spark Plug:
Type
Gap
Hex Size
Torque
Firing Order
Ignition Timing: (Fixed)
Capacitor Charge Coil Resistance
Trigger Coil Resistance
Ignition Coil Resistance:
Primary
Secondary (W/o Boots)
Spark Plug Boot
Engine Speed Limiter
Oil Pressure Switch (Red Light)
Capacitor Discharge Ignition
NGK DCPR6E
0.035 in. (0.9 mm)
5/8 in. (16 mm)
13 lb-ft (17.5 Nm)
1
25° ± 1° B.T.D.C.
95 - 134 Ω (WHT - BLK/RED)
149 - 243 Ω (RED/WHT - BLK)
0.02 - 0.38 Ω
3000 - 4400 Ω
3500 - 5200 Ω
6300 ± 200 rpm
Continuity Below 3.5 psi ± 0.7 psi
(24.5 ± 5 kPa) @ 68°F (20°C)

Mercury 4 SERIES Specifications

General

Brand	Mercury
Model	4 SERIES
Category	Outboard Motor
Language	English