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Aqua Bug™

Aqua Bug™ 4-Stroke Outboard Motor by Bike Bug®

Regular price $569.00

World’s Smallest 4 Stroke Outboard Motor 
Bike Bug® Introduces the Improved Aqua Bug™ 4 Stroke Outboard Engine 
The Improved – Famous Aqua Bug™ Outboard & Trolling Engine.

Advanced Technology 4-stroke – no fuel/oil mixing - Full 360° “any-side-up” operation – use and store in any position.


  • Fuel Efficient, High Output Operation

  • Approximately half the operating cost of comparable 2-stroke engines

  • Efficient port configuration and large diameter valves maximize power output

  • Lighter, more rigid valve train

  • Carburetor equipped with accelerator pump for fast, easy acceleration

  • Smooth Performance Precision engineered components result in lower vibration

  • Lighter piston minimizes vibration

  • Ball bearing supported crankshaft for greater stability

  • Roller bearing supported connecting rod

  • Exceptionally Quiet Belt-driven OHC design reduces mechanical noise

  • Large capacity, multi-chamber exhaust system

  • Sophisticated air intake system

  • Exclusive rotary-sling lubrication system

  • Proven Reliability High quality materials, fit, and finish

  • Lifetime timing belt design Integrated fuel system protection

  • Carburetor Diaphragm-type (overflow return)

  • Easy to Use and Maintain Easily accessible spark plug

  • Easy to drain and re-fill oil No mixing of gas and oil

  • Easy Starting

  • Exhaust decompression system

  • Unique low inertia design

  • No catalyst necessary

  • Ignition System

  • Transistorized magneto

  • Starting System Recoil

  • Lubrication System Crankcase pressure–driven

  • Governor System NA

  • Air cleaner Semi-dry

  • Engine Type Air-cooled 4-stroke OHC Bore x Stroke 39 mm x 30 mm

  • Displacement 35.8 cm3

  • Net Power Output* 1.3 HP (1.0 kW) @ 7,000 rpm

  • Net Torque 1.2 lb-ft (1.6 Nm) @ 5,500 rpm PTO Shaft Rotation Counterclockwise (from PTO shaft side)

  • Compression Ratio 8.0:1

  • Oil Capacity 3.4 US oz (100cc)

  • Fuel Unleaded 86 octane or higher Fuel Tank Capacity 0.67 U.S. qt (.63 liter)

  • Engine Dry Weight 16 lb (7.3 kg)

  • Engine Dimensions Length (min) 8.0″ (204 mm) Width (min) 9.2″ (234 mm) Height (min) 9.4″ (230 mm)

Mini 4-Stroke Series Efficient 4-Stroke technology not only offers superior fuel economy, it also requires no mixing of oil in the engine’s fuel supply.This substantially reduces both oil consumption and the emission of unburned oil in the exhaust. The results include better all-around environmental performance and operating costs that actually decrease the more the engine is used!

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