The SP-28 is the smallest single-cylinder engine in the 3W International portfolio. The engine is equipped with a carburetor and an improved cylinder design for a higher thermal stability.



Type1-Cylinder Gas-Engine
Capacity28 ccm / 1.71 cu in
Power2.19 HP / 1.61KW @ 6,600 RPM
Speed Range 1,500 - 10,000 RPM
Weight2.95 lbs (1.34 kg) incl. ignition
Crankshaft3 ball bearings
Oil/Gasoline ratio1:50 / 2% mix
Operating Voltage6 - 8.4 V DC
Test method: Dynotest – Engine data might change due to the engine test procedure and the engine configuration.

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