Mercury Outboards   
4 Stroke Big Foot - 40 hp EFI   

Portable 4-Stroke

• 4 hp
• 5 hp
• 6 hp
• 9.9 hp
• 15 hp

Big Foot 4-Stroke

• 9.9 Sailpower
• 9.9 hp
• 15 hp
• 25 hp
• 40 hp EFI
• 50 hp EFI
• 60 hp EFI

Mid-Range 4-Stroke

• 30 hp
• 30 hp EFI
• 40 hp
• 40 hp EFI
• 50 hp EFI
• 60 hp EFI
• 75 hp
• 90 hp
• 115 hp EFI

4 Stroke Big Foot
40 hp EFI

• Propshaft Horsepower: 40-hp (29.9 kW)
• Max RPM (W.O.T.): 5500-6000
• Cylinders/Configuration: 3
• Displacement: 45.6 cu.in. (747cc)
• Bore & Stroke: 2.56 in. x 2.95 in. (65mm x 75mm)
• Exhaust System: Through Prop
• Lubrication System: Wet sump
• Cooling System: Water cooled with thermostat and fresh water flush
• Ignition System: CDI with electric spark advance
• Starting System: Manual (with decompression) and Electric
• Alternator: Manual 6 amp (76 watt)/Electric 15 amp (289 watt)
• Gear Ratio: 2.3:1
• Gear Shift: F-N-R (front mounted on tiller handle models
• Steering: Tiller or Remote
• Trim System: Gas assist & Power trim models available
• Shaft Length: 20 in. (508mm)
• Weight-Dry: 228 lbs. (104 kg)
• Operator Warning Systems: Overheat, low oil pressure, overrev
• Propeller Recommendations: Part Numbers: 48-77340A33 / 48-77338A33 / 48-854342A33 / 48-854340A33