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INSTALLATION MANUAL

90-864198020 Page 13 of 77

NOTE: Some installations may have 7/32 in. (5 mm) holes drilled in transom using four 5/16

in. diameter stainless steel lag bolts in place of round head screws. In any case, flat washers

and O-rings are required as outlined.

72641

Water Pickup Installed on Transom

a-Diagonal Mount - Leading Edge Of Pickup 1/8 in. (3.2 mm) From Boat Bottom.

b-Vertical Mount - Corner Of Leading Edge Of Pickup 1/8 in. (3.2 mm) From Boat

Bottom

5. Secure water pickup from inside with locknuts and washers (unless using lag bolts).

6. Tighten fasteners securely.

Table of Contents2
General Information3
- Notice to Boat Manufacturer/Installer3
Torque Specifications4
Lubricants / Sealants / Adhesives4
Quicksilver Products5
- Accessories5
Serial Number Decal Placement5
Engine Rotation5
Transmissions6
- Velvet Drive Transmissions6
- ZF / Hurth Transmissions7
- Propeller Rotation8
Boat Construction10
- Engine Bed10
Seawater Connections11
- Seawater Pickup11
Preliminary Connections14
- Fuel Inlet Fitting14
- Inline Fuel Filter15
- Coolant Recovery System Connections17
Engine Mount Pre-Adjustment18
Engine Preparation19
- Engine Oil Dipstick Relocation19
Engine Installation and Initial Engine Alignment20
- Models with 8 Degree down Angle Transmissions20
- Models with V-Drive Transmissions22
- All Models23
- Hot Water Heater Installation24
Exhaust System26
- Measurement Methods29
- Exhaust System Hose / Tube Connections32
Electrical Connections33
- Instrumentation Connections33
- Audio Warning System Connections34
Fluid Connections35
- Coolant Recovery Bottle35
Final Engine Alignment36
Throttle Cable Installation and Adjustment40
Shift Cable Installation and Adjustment40
- Velvet Drive Transmissions41
- ZF / Hurth Transmissions49
Predelivery Preparation54
- Propeller Selection54
- Fuel Line Connection55
- Battery55
- Test Running Engine57
- Boat in the Water Tests58
Cold Weather and Extended Storage59
Draining Instructions59
- Identification60
- Boat in Water61
- Boat out of the Water65
- All Models67
Instrumentation68
ECM 555 EFI System Engine Wiring Diagrams70
Water Flow Diagrams74
Predelivery Inspection77

Engine Type	V8
Horsepower	300 HP
Ignition	Electronic
Alternator	65 amp
Cylinders	8
Displacement	5.7 L
Fuel System	Multi-Port Fuel Injection (MPI)
Emissions	EPA Certified

Mercury 350 MAG MPI Installation Manual

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