MerCruiser 350 MAG MPI Owner's Manual

Section 5 - Maintenance
90-864197070 JUNE 2007 Page 55
Section 5 - Maintenance
Table of Contents
Owner/Operator Responsibilities........................ 56
Dealer Responsibilities....................................... 56
Maintenance....................................................... 56
Do It Yourself Maintenance Suggestions........... 57
Inspection........................................................... 57
Maintenance Schedule - Inboard Models........... 58
Routine Maintenance ................................... 58
Each Day Start ....................................... 58
Each Day End ........................................ 58
Weekly ................................................... 58
Every Two Months or 50 Hours .............. 58
Scheduled Maintenance ............................... 58
After the Initial 20 Hour Break-In Period
............................................................... 58
Every 100 Hours or Annually (Whichever
Occurs First) ........................................... 58
Every 300 Hours or 3 Years ................... 58
Maintenance Log................................................ 59
Engine Oil........................................................... 59
Checking ...................................................... 59
Filling ............................................................ 60
Changing Oil and Filter ................................ 61
Easy Engine Oil Drain System ............... 61
Engine Oil Drain Pump ........................... 61
Changing Filter ....................................... 62
Transmission Fluid.............................................. 63
Checking While the Engine is Warm ............ 63
Checking While Engine is Cold .................... 63
Changing ...................................................... 63
Engine Coolant................................................... 63
Checking ...................................................... 63
Filling ............................................................ 64
Changing ..................................................... 65
Cleaning The Flame Arrestor.............................. 65
Positive Crankcase Ventilation Valve (PCV)
..................................................................... 66
Changing ................................................ 66
Changing Water Separating Fuel Filter.............. 67
GEN II Models .............................................. 67
GEN III Models ............................................. 68
In-line Fuel Filter................................................. 70
Lubrication.......................................................... 72
Throttle Cable................................................72
Transmission Linkage...................................72
Serpentine Drive Belt.......................................... 73
Checking ...................................................... 73
Replacing Belt and/or Adjusting Tension ..... 74
Flushing The Power Package—Tow Sports....... 75
The Boat Out of the Water ........................... 75
The Boat In the Water .................................. 77
Battery................................................................ 79
Multiple EFI Engine Battery Precautions.......79
5

MerCruiser 350 MAG MPI Specifications

General

Engine Type	V8
Horsepower	300 HP
Ignition System	Electronic ignition
Alternator	65 amp
Compression Ratio	9.4:1
Displacement	5.7L (350 cu in)
Fuel System	Multi-Point Injection (MPI)
Bore x Stroke	4.00" x 3.48" (101.6mm x 88.39mm)