Mercury 3.5 HP Tiller Outboard Motor - 2025

Put amazing power in the palm of your hand. These compact outboard motors take you to the fun, the fish, or whatever floats your boat, quickly and reliably. Enjoy quick acceleration to go with exhilarating speed. Easy to install and operate, with reliable starting, low vibration, and instant throttle response. It's worry-free boating at its best.

Features:

• Forward neutral shift
• Single carburetor
• Water Cooled
• 0.3 Gallon Integral Fuel Tank
• Automatic decompression relief greatly reduces pull force for effortless starting
• Standard 3 blade propeller: 7 3/8" x 6"

Specifications:

• Power: 3.5 HP (2.6 kW)
• Engine type: 1 cylinder
• Displacement: 85cc
• Full throttle RPM: 5000-6000
• Fuel induction system: 2-valve pushrod (overhead valve)
• Recommended fuel: 87 octane / up to 10% ethanol
• Recommended oil: Mercury FourStroke Oil 10W-30
• Engine protection operator warning system: Over-rev
• Gearcase ratio: 2.15:1
• CARB star rating: 3
• Bore and stroke: 2.16 x 1.42" / 55 x 36 mm
• Ignition: CDI with electronic spark advance
• Fuel system: Carbureted
• Cooling system: Water-cooled with thermostat
• Gear shift: forward, neutral
• Exhaust system: Above prop
• Integrated fuel tank: 0.3 gal (1.1 L)
• Dry weight:
  • 15" shaft: 41 lbs
  • 20" shaft: 43 lbs
• Factory warranty: 3 years. Warranty begins on date of purchase.

Note: Fuel line not included.

Mercury 3.5MH Owner's Manual