4 Stroke, Inline Four Motor | Yamaha Outboards

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In-Line Four Features

S = Standard Features   ○ = Optional Equipment   ● = Available with or without   R = Required   C = Compatible

Four Stroke Engine DesignSSSS
Compact 10mm Offset CrankshaftSSSS
Large Volume Air IntakeSSSS
Precision Multi-Point Fuel InjectionSSSS
DOHC (Double Overhead Camshaft)SSSS
Variable Camshaft Timing (VCT™)S   
4-Valves Per CylinderSSSS
Long Track Induction SystemSSSS
4-individual Throttle Valves  S 
Compact, Lightweight DesignSSSS
Labyrinth ExhaustSSSS
4-1 Exhaust SystemSSSS
Counterbalancing TechnologySSSS
Flywheel DampenerSSS 
Powerful 4-Cylinder 170 cu in.SS  
Powerful 4-Cylinder 163 cu in.  S 
Powerful 4-Cylinder 111 cu in.   S
Single Throttle ValveSS S
TCI MicrocomputerSSSS
Direct Drive SystemSSSS
Wet Sump LubricationSSSS
Engine Warning SystemSSSS
Sacrificial AnodesSSSS
YDC-30 Aluminum AlloySSSS
Phaze Five Paint SystemSSSS
Electro-deposited Powerhead Paint ProcessSSSS
Top Mounted ElectricalSSSS
Forged PistonsSSSS
Super Tight Cowling MountingSSSS
Heat Treated GearsSSSS
High Output AlternatorSSS
SST Drive, Prop, Shift ShaftsSSSS
SST Steering TubeSSSS
Magnetic Drain PlugSSSS
Cowling Air Intake Water Draining SystemSSS
On-engine water separating fuel filterSS
Water-cooled rectifier regulatorS
Fuel CoolerSSSS
Power Trim and TiltSSSS
Freshwater FlushSSSS
Easy MaintenanceSSS
Counter Rotation "LF" ModelN/A
Yamaha Diagnostic SystemCCCC
Single Belt Drive SystemSSSS
Reversible PTT SwitchSSSS
Multi Charge Monitoring SystemSSS
External Tilt Switch  SS

S = Standard Features   ○ = Optional Equipment   ● = Available with or without   R = Required   C = Compatible