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POWWERFUL PERFORMANCE

Yamaha’s new F40A features a vapor-reducing fuel return 

system.  Used in conjunction with Yamaha’s electronic 

multi-point fuel injection, the F40A offers dependable 

turn-key starting in both hot and cold conditions.

A single overhead camshaft provides precise valve timing 

for maximum power with minimum weight.  This 6-valve, 

SOHC design effi ciently exchanges intake and exhaust 

gases for responsive power and fuel effi ciency.

Responsive Power

Precise Throttle Control

Fuel Effi ciency

Three individual compact electronic fuel injectors deliver the 

exact amount of fuel needed for optimum performance and 

economy. Controlled by the Engine Control Module via input 

from an array of on-engine sensors, their location just above 

the intake valves enhances fuel atomization, resulting in 

more effi cient combustion.

 

Dependable Starting

All air entering the engine block of the F40A is routed through 

a single throttle valve, to ensure the precise amount of air 

necessary for optimum power and fuel effi ciency.  The air 

silencer box reduces intake noise and air turbulence for 

smooth, quiet operation.

F40A HOT SHEET

F40A HOT SHEET

Summary of Contents for F40LEHA

Page 1: ... outstanding fuel efficiency Yamaha outboards are known for RELIABILITY Yamaha s proven 40hp four stroke outboard design now comes with the addition of electronic multi point fuel injection for easy turn key starting A large on engine water separating fuel filter further adds to its long term reliability approach as does an integral engine monitoring and warning system and Yamaha s renowned Ultima...

Page 2: ...Compact PTT Standard on LA Model Light Load Hydro Trim Tilt System Standard on Jet Models Command Link Gauges Optional Labyrinth Exhaust Water Sealed Outer Wall Warning Protection Systems Ultimate Corrosion Protection System Reliability Durability Performance Convenience 6 Valve SOHC In Line 3 Cylinder ECM Control System Electronic Multi Point Fuel Injection Single Throttle Body Long Intake Manifo...

Page 3: ...wer Precise Throttle Control Fuel Efficiency Three individual compact electronic fuel injectors deliver the exact amount of fuel needed for optimum performance and economy Controlled by the Engine Control Module via input from an array of on engine sensors their location just above the intake valves enhances fuel atomization resulting in more efficient combustion Dependable Starting All air enteri...

Page 4: ...m software This provides a view of selected past and current running conditions to help technicians provide a complete and accurate diagnosis All F40A outboards feature a large on engine water separating fuel filter with a water sensor Used in conjunction with Yamaha s optional boat mounted 10 Micron Water Separating Fuel Filter it helps separate water and contaminants from the fuel before they ca...

Page 5: ...ffer a wealth of information to the operator in order to help provide efficient and effective operation Available in square or round style to fit a wide range of tastes and applications By just pressing a button on the Command Link tachometer or the VTS switch on the Multifunction Tiller Handle the operator can adjust the engine s trolling speed from 650 900 rpm in 50 rpm increments This helps pro...

Page 6: ...wer Shaft Length Starting Method Control Method Generation PTT F Four Stroke S 15 Blank PTT E start Blank Remote A 1st change on motor L 20 P PT E start Control B 2nd change on motor X 25 E Electric start H Tiller Handle C 3rd change on motor U 30 M Manual start C Command Link Etc J Jet Control F 40 J E H A Fuel Induction Horsepower Shaft Length Starting Method Control Method Generation PTT F Four...

Page 7: ... Temperature Sensor Cooling Water Temperature Sensor Fuel Pump Fuel Injectors Vapor Separator Ignition Control Fuel Control Battery ECM Filter Hub Ignition Key Switch Command Link Speedometer Variable Trolling RPM Switch Command Link Tachometer Water Separator Water Detection Switch Ignition Key Switch S Y S T E M D I A G R A M F40A HOT SHEET F40A HOT SHEET ...

Page 8: ...lectric Starter Ignition CDI Microcomputer DC Spark Plug NGK DPR6EA 9 Lubrication Wet Sump Degree of Trim Tilt 3 to 20 63 w PTT 62 w Hydro Assist Manual Tilt Exhaust Through Propeller Hub Cooling Raw Water Thermostatically controlled Gear Ratio 2 0 1 26 13 Recommended Fuel Regular Unleaded Gasoline Minimum Pump Octane 87 Recommended Oil Yamalube 4 M FC W 10W 30 or 20W 40 Oil Capacity 2 1 Quarts 2 ...

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