Mercury 4 SERIES User Manual

2
A
IGNITION SYSTEM
90-857138R1 MAY 2000 Page 2A-1
ELECTRICAL
Section 2A - Ignition System
Table of Contents
Specifications 2A-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Direct Voltage Adaptor Specifications 2A-1. . . . .
Special Tools 2A-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Components 2A-4. . . . . . . . . . . . . . . . . . . . .
Description 2A-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test Procedures 2A-6. . . . . . . . . . . . . . . . . . . . . . . . . . .
Direct Voltage Adaptor Specifications 2A-6. . . . .
Capacitor Charging Coil 2A-6. . . . . . . . . . . . . . . . .
Trigger Coil 2A-7. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ignition Coil 2A-7. . . . . . . . . . . . . . . . . . . . . . . . . . . .
CDI Unit 2A-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ignition Components Removal and
Installation 2A-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Flywheel 2A-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Capacitor Charging Coil 2A-17. . . . . . . . . . . . . . . .
Trigger Coil 2A-18. . . . . . . . . . . . . . . . . . . . . . . . . . .
Ignition Coil 2A-19. . . . . . . . . . . . . . . . . . . . . . . . . . .
CDI Unit 2A-20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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 N·m)
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)
Direct Voltage Adaptor Specifications
Test
Selector Switch
DVA Leads
Volts @ 300-2000 RPM
T
es
t
Selector
Switch
Position
Red Black
V
o
lt
s
@
300
-
2000
RPM
Ignition Coil PRI 400 VDC Ground
Black/Yellow
Lead
120-300
Charge Coil 400 VDC
Black/Red
Lead
Ground 150-325
Stop Circuit 400 VDC Brown Lead Ground 175-300

Mercury 4 SERIES Specifications

General

Brand	Mercury
Model	4 SERIES
Category	Outboard Motor
Language	English