Yamaha F2.5A Owner's Manual

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Specifications and requirements8EMU34520SpecificationsTIP:“(AL)” stated in the specification data belowrepresents the numerical value for the alumi-num propeller installed.Likewise, “(SUS)” represents the value forstainless steel propeller installed and “(PL)”for plastic propeller installed.TIP:“*” means, select the engine oil referring to thechart of engine oil paragraph. For further infor-mation, see page 10.EMU2821JDimension:Overall length:623 mm (24.5 in)Overall width:345 mm (13.6 in)Overall height S:1021 mm (40.2 in)Overall height L:1148 mm (45.2 in)Transom height S:432 mm (17.0 in)Transom height L:559 mm (22.0 in)Weight (AL) S:17.0 kg (37 lb)Weight (AL) L:17.0 kg (37 lb)Performance:Full throttle operating range:5250–5750 r/minMaximum output:1.8 kW@5500 r/min (2.5 HP@5500r/min)Idle speed (in neutral):1900 ±100 r/minEngine:Type:4-stroke SDisplacement:72.0 cm³Bore × stroke:54.0 × 31.5 mm (2.13 × 1.24 in)Ignition system:TCISpark plug (NGK):BR6HSSpark plug gap:0.6–0.7 mm (0.024–0.028 in)Control system:Tiller handleStarting system:Manual starterStarting carburetion system:Choke valveValve clearance (cold engine) IN:0.08–0.12 mm (0.0032–0.0047 in)Valve clearance (cold engine) EX:0.08–0.12 mm (0.0032–0.0047 in)Drive unit:Gear positions:Forward-neutralGear ratio:2.08(27/13)Trim and tilt system:Manual tiltPropeller mark:BSFuel and oil:Recommended fuel:Regular unleaded gasolineMin. research octane:90Fuel tank capacity (built in type):0.9 L (0.24 US gal, 0.20 Imp.gal)Recommended engine oil:4-stroke outboard motor oil