MSD 6560 6M-2L Marine Certified Ignition with Rev Limit Installation - Manual (Page 4)

4 INSTALLATION INSTRUCTIONS
M S D
• W W W . M S D P E R F O R M A N C E . C O M • ( 9 1 5 ) 8 5 7 - 5 2 0 0 • F A X ( 9 1 5 ) 8 5 7 - 3 3 4 4
ROUTING WIRES
The MSD wires should be routed away from direct heat sources such as exhaust manifolds and
headers and any sharp edges. The trigger wires should be routed separate from the other wires
and spark plug wires. It is best if they are routed along a ground plane such as the block or firewall
which creates an electrical shield. The magnetic pickup wires should always be routed separately
and should be twisted together to help reduce extraneous interference.
WIRE FUNCTIONS
These are the two heavy gauge wires (12 gauge) and are responsible
for getting direct battery voltage to the Ignition. The ignition has an
internal fuse so no fuse is necessary.
This wire connects directly to the battery positive (+) terminal or to a
positive battery junction or the positive side of the starter solenoid.
Note: Never connect to the alternator.
This wire connects to a good ground, either at the battery negative
(-) terminal or to the engine.
Connects to a switched 12 volt source. Such as the ignition key or
switch.
Connects to the positive (+) terminal of the coil.
This is the only wire that makes electrical contact with the coil
positive terminal.
Connects to the negative (-) terminal of the coil.
This is the only wire that makes electrical contact with the coil
negative terminal.
There are two circuits that can be used to trigger the MSD Ignition; a
Points circuit (White wire) and a Magnetic pickup circuit (Violet and
Green wires). The two circuits will never be used together.
This wire is used to connect to the points, electronic ignition amplifier
output or to the Yellow wire of an MSD Timing Accessory. When this
wire is used, the Magnetic pickup connector is not used.
These wires are routed together in one harness to form the Magnetic
pickup connector. The connector plugs directly into an MSD Marine
Distributor. It will also connect to factory magnetic pickups or other
aftermarket pickups. The Violet wire is positive (+) and the Green is
negative (-). When these wires are used, the White wire is not.
Power Leads
Heavy Red
Heavy Black
Red
Orange
Black
Trigger
Wires
White
Violet
and Green
(Magnetic
Pickup
Connector)