Installation manual

90-898305
1-4
Hydrocarbons – HC.....................................................................................50
Carbon Monoxide – CO ..............................................................................50
Oxides of Nitrogen - NOx ............................................................................50
Controlling Emissions..................................................................................50
Stoichiometric (14.7:1) Air/Fuel Ratio ......................................................... 50
Outboard Hydrocarbon Emissions Reductions............................................... 51
8 1/3% _ PER YEAR OVER 9 MODEL YEARS..........................................51
Engine Emission Certification Label ...............................................................52
Engine Emission Certification Label ...............................................................53
Speed / Density Theory and Operation ..........................................................54
Speed/Density Theory.................................................................................54
Speed/Density Operation ............................................................................55
Mass Air Flow Systems...............................................................................55
Stratified VS Homogenized Charge................................................................56
Stratified Charge .........................................................................................56
Homogenized Charge ................................................................................. 57
Theory of Operation - V6 Models....................................................................58
Air Induction Through Crankcase................................................................58
Air Compressor System ..............................................................................59
Fuel .............................................................................................................60
Oil................................................................................................................ 61
Electrical......................................................................................................61
Operation .................................................................................................... 61
Theory of Operation - 3 Cylinder Models........................................................63
Air Induction Through Crankcase................................................................63
Air Compressor System ..............................................................................63
Fuel .............................................................................................................64
Oil................................................................................................................ 64
Electrical......................................................................................................65
Operation .................................................................................................... 65
3 Cylinder/1.5 Liter..........................................................................................67
75/90/115 HP..................................................................................................67
Cowls (Upper & Lower) ............................................................................... 67
Emissions & Noise Levels........................................................................... 68
Powerhead..................................................................................................68
Cooling System...........................................................................................69
Mid-Section .................................................................................................70
Accessories.................................................................................................71
Power Trim.................................................................................................. 72
Lower Unit...................................................................................................72
Performance Gear Lube..............................................................................72
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