Mercury 45 Jet 50-55 - Ignition System Test Chart

ELECTRICAL and IGNITION - 2A-390-817643R1 DECEMBER 1996
Ignition System Test Chart
IMPORTANT: BEFORE attempting the ignition system checks, following, thoroughly read the preceding pages of
these instructions to become familiar with the proper Automatic Distributorless Ignition (ADI) test sequence and pro-
cedures (particularly any “Safety Warnings” and “Cautions”). ALL tests are performed with lead wires connected –
terminals exposed. SWITCH BOX MUST BE GROUNDED (CASE TO ENGINE BLOCK) FOR ALL TESTS – IF NOT,
SWITCH BOXES MAY BE DAMAGED.
55/60 MARATHON/SEAPRO – (398-9873A-5 printed on the stator)
USA S/N 0G277479 and BELOW
BELGIUM S/N (Not Available at Time of Printing)
45 JET, 50/60 ELECTRIC – (398-9710A22, 398-9710A23, or 398-9710A34 printed on the stator)
USA S/N 0G277605 and BELOW
BELGIUM S/N (Not Available at Time of Printing)
NOTE: When servicing a unit prior to the listed serial number and below, it is recommended that the flywheel be removed and
the stator part number verified to determine proper testing applications.
ADI Test
Seq
Test Selector Sw.
Position
DVA Leads
Voltage
(1)
@300 1000 RPM
Voltage
@1000 4000 RPM
S
eq.
P
os
iti
on
Red Black
@300
-
1000
RPM
@1000
-
4000
RPM
1–A Coil Primary 400 VDC* Coil (+)
Terminal
Coil (–)
Terminal
150–250 180–280
2–A Switch Box -
Stop Circuit
400VDC* Black/Yellow(3)
Sw. Box Terminal
Ground 200–360 200–360
3–A
4–A
Stator -
Low Speed
400VDC* Blue Sw. Box
Terminal
Ground 200–300 200–330
3–A
4–A
Stator -
High Speed
400VDC* Red Sw. Box Ter-
minal
Ground 20–90 130–300
5–A Switch Box -
Bias
20 VDC or
40 VDC
Ground
(1)
White/Black Sw.
Box Terminal
(1)
2–10 10–30
(1)
Using meter only, REVERSE LEAD POLARITY, connect leads as specified.
(*) If using a meter with built-in DVA, place selector switch in the DVA/400 VDC position.
55/60 MARATHON/SEAPRO – (398-9873A21 printed on the stator)
USA S/N 0G277480 and ABOVE
BELGIUM S/N (Not Available at Time of Printing)
45 JET, 50/60 ELECTRIC – (398-9873A24 printed on the stator)
USA S/N 0G277606 and ABOVE
BELGIUM S/N (Not Available at Time of Printing)
ADI Test
Seq
Test Selector Sw.
Position
DVA Leads
Voltage
@300 RPM
Voltage
@1000 RPM
Voltage
@4000 RPM
S
eq.
P
os
iti
on
Red Black
@300
RPM
@1000
RPM
@4000
RPM
1–A Coil Primary 400 VDC* Coil (+)
Terminal
Coil (–)
Terminal
145–175 210–250 200–240
2–A Switch Box -
Stop Circuit
400VDC* Black/Yellow(3)
Sw. Box Termi-
nal
Ground 215–265 280–340 260–320
3–A
4–A
Stator -
Low Speed
400VDC* Blue Sw. Box
Terminal
Ground 215–265 280–340 260–320
3–A
4–A
Stator -
High Speed
400VDC* Red Sw. Box
Terminal
Ground 10–15 45–55 205–255
5–A Switch Box -
Bias
20 VDC or
40 VDC
Ground
(1)
White/Black Sw.
Box Terminal
(1)
2–10 10–30 10–30
(1)
Using meter only, REVERSE LEAD POLARITY, connect leads as specified.
(*) If using a meter with built-in DVA, place selector switch in the DVA/400 VDC position.