2009 Yamaha F40 Outboard Service Manual, Page 19Get this manual
SPEC Model features
General feature
Specification
F40H Overall features Electronic fuel injected, 4-stroke, L3, SOHC, 6-valve, 747.0 cm3 (45.6 cuin) engine Low emission in compliance with US EPA and US CARB 3-STAR emission standards Command Link Multifunction Meter (option) Power unit Multipoint electronic fuel injection Single throttle body Long intake manifold Blowby gas reburning system Fuel cooler Closed fuel vapor gas system One piece top cowling with water draining air intake duct Speed sensor and water pressure sensor (option) Electrical Variable trolling speed control (tiller handle model or Command Link Multifunction Meter equipped model) Alert systems including low oil pressure, overheat, and water detection New YDIS 1.32 version Start-in-gear protection Bracket unit Long span mounts Small and compact PTT (PTT model) High-pressure gas-assisted hydro tilt (hydro tilt model) Multifunction tiller handle Upper case Labyrinth idle exhaust system Lower unit Lower unit equivalent to that of one-classhigher model