Installation and Troubleshooting Guide
Installation and Troubleshooting Guide
All rights reserved. Reproduction or use of content, in any manner, without express written permission by CDI Electronics, Inc., is prohibited.
CDI P/N: 474-9550
Universal Boat Side Wiring Harness
This harness replaces the boat side harness used on engines with the internal engine harness mounted through the lower cowling.
Warning! This product is designed for installation by a professional marine mechanic. CDI cannot be held liable for injury
or damage resulting from improper installation, abuse, neglect or misuse of this product.
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Installation
Disconnect the battery cables form the battery, negative cable first.
Disconnect the old harness from the engine.
Disconnect the keyswitch and gauges in the boat.
Remove the old boat side harness (TECH TIP: Tie a rope to the old harnesses wires near the end of the wires
and pull it with the old harness. This will make it easier to pull the new harness back through the same route.)
Install the new boat side harness, routing the wires the same way as the old harness.
Terminate the new wires for the gauges as needed using the terminals provided and connect them to the gauges.
Connect the new wires to the ignition switch either as a solder connection or use the terminals provided.
Connect the new harness to the engine.
Connect the battery cables of the new harness to the battery.
NORMAL CONNECTIONS FOR BATTERY TYPE IGNITIONS:
SWITCH BOX P/N's
Mercury
332-2803
332-2986
332-4796
337-4411
Points/Condenser
CDI Electronics
114-2803
114-2986
114-4796
N/A
N/A
Wire Color
Black (4 AWG)
Yellow
Gray
Orange
White
Brown
Red (4 AWG)
Red (18 AWG in Harness)
Function/Connection
Battery (-) Ground Terminal
Start Terminal on Ignition Switch
Choke Terminal on Ignition Switch
Kill Circuit for ADI- Not Used, Tape Off
“I” Terminal on Ignition Switch (12V Key On)
Tachometer Signal
Battery (+) Positive Terminal
“B” Terminal on Ignition Switch
NORMAL CONNECTIONS ON ALTERNATOR DRIVEN IGNITIONS
SWITCH BOX P/N's
Mercury
CDI Electronics
Mercury
332-4172
N/A
333-3213
332-5772
114-5772
338-4733
332-7778
114-7778
339-5287
332-4911
114-4911
339-6222
Wire Color
Black (4 AWG)
Black (18 AWG)
Yellow
Gray
Orange
White
Brown
Red (4 AWG)
Red (18 AWG in Harness)
CDI Electronics
N/A
114-4911
114-6222
114-6222
Function/Connection
Battery (-) Ground Terminal
“M” Terminal on Ignition Switch (Kill Circuit for ADI)
Start Terminal on Starter Solenoid
Choke Terminal on Ignition Switch
“M” 2nd Terminal on Ignition Switch (Kill Circuit for ADI)
“I” Terminal on Ignition Switch (12V Key On)
Tachometer Signal
Battery (+) Positive Terminal
“B” Terminal on Ignition Switch
CDI Electronics • 353 James Record Road SW • Huntsville, AL 35824
Web Support: www.cdielectronics.com • Tech Support: 1-866-423-4832 • Order Parts: 1-800-467-3371
All rights reserved. Reproduction or use of content, in any manner, without express written permission by CDI Electronics, Inc., is prohibited.
Rev A • 7/23/13
Page - 1 of 1
QF-319
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