Efi Electrical System Precautions; Instrumentation - Mercury SKI Instruction Manual

GASOLINE ENGINES SKI MODELS

EFI Electrical System Precautions

NOTE: All references to EFI models apply to all EFI and MPI engines.
Avoid damage to the EFI electrical system and components. Refer to the following
precautions when working on or around the EFI electrical harness or when adding
other electrical accessories:
•
DO NOT tap accessories into engine harness.
•
DO NOT puncture wires for testing (Probing).
•
DO NOT reverse battery leads.
•
DO NOT splice wires into harness.
•
DO NOT attempt diagnostics without proper, approved Service Tools.

Instrumentation

If Quicksilver wiring harness is used and a fused accessory panel is to be installed
(40-amp current draw maximum), be sure to connect it as shown in wiring diagram.
Do not connect accessory panel at any other location as wires in wiring harness
may not be of sufficient size to handle current load.
We recommend the use of Quicksilver Instrumentation and Wiring harness(es). On dual sta-
tion applications, oil pressure and water temperature senders (on engine) must be changed.
Refer to "Quicksilver Accessories Guide" for selection.
The 4 basic gauges that must be used with the engine are:
•
Tachometer
•
Oil Pressure
•
Water Temperature
•
Voltmeter
Route instrumentation wiring harness back to engine, making sure that harness does not
rub or get pinched. If an extension harness is required, be sure to secure connection proper-
ly. Fasten harness(es) to boat at least every 18 in. (460mm), using appropriate fasteners.
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