Outboard engine F90

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The all-new 1.8-liter I-4 F90 features greater displacement and a single-overhead-camshaft design with four valves per cylinder. This boosts power and volumetric efficiency and streamlines design. In fact, it’s 13 pounds lighter than previous designs. A lighter, more powerful design gives the F90 blistering speed that’s 1.5 mph faster than competing outboards.* Available for mechanical remote or tiller control Only 353 pounds Available in 20” or 25” shafts Powerful 35-amp alternator Optional Variable Trolling RPM via the Command Link® tachometer Alternator Output at W.O.T. - 35 Amp Compression Ratio - 10.0:1 Fuel Induction System - EFI Recommended Fuel - Octane 87 Recommended Engine Oil - Yamalube® 4M (See owner's manual) Recommended Fuel Filtration - Yamaha 10-Micron Fuel/Water Separating Filter (external) C.A.R.B. Rating - 3-Star Exhaust - Through Propeller Intake - 16 Ignition - TCI Microcomputer Spark Plug - LFR6A-11 Alternator Output - 35 Amp Starting System - Electric Lubrication - Wet Sump Engine Oil Capacity - 3.2/3.0L Recommended Cooling - Thermostatic Control Ethanol Blend Limit - 10% Maximum