The 215 is a conventional single-cylinder two-stroke engine that weighs 39 lb (18 kg) in its 215R aircraft version. The engine features single breaker and points ignition, with single capacitor discharge ignition used on the current models. It also incorporates piston porting, tuned exhaust system, single carburettor, fan cooling, fuel pump, a cast iron cylinder liner, ball, needle and roller bearings throughout. The 215R aircraft version was offered with an optional belt reduction system and the modern industrial versions have an optional gearbox with ratios of 2.04, 2.65 and 3.06. Starting is a recoil starter with a custom electric starter available as an option.
The basic engine was originally designed and produced by JLO of Germany and was later acquired by the AMW Cuyuna Engine Company of Beaufort, South Carolina and marketed under the Cuyuna brand name. Later the engine was marketed by Cuyuna under the Two Stroke International (2si) brand. Cuyuna no longer markets engines for aircraft use although the 215 was still in production as an industrial and multi-fuel engine.
Variants 215D - Gasoline aircraft engine with direct drive. Single carburetor, 20 hp (15 kW) at 6000 rpm, weight 42 lb (19 kg). 215R - Gasoline aircraft engine with belt reduction drive. Single carburetor, 20 hp (15 kW) at 6000 rpm, weight 39 lb (18 kg).
Specifications
215D Type: Single-cylinder, two-stroke aircraft engine Bore: 2.658 in (67.5 mm) Stroke: 2.362 in (60.0 mm) Displacement: 214 cc (13.06 cu in) Length: 11.75 in (298.5 mm) Width: 7.0 in (177.8 mm) Height: 14.0 in (355.6 mm) Dry weight: 42 lb (19 kg) Components Valvetrain: piston porting Fuel type: Regular auto fuel Oil system: premixed oil and fuel at 50:1 Cooling system: fan cooled Reduction gear: optional belt reduction Performance Power output: 20 hp (15 kW) at 6000 rpm Compression ratio: 12.5:1