The 1.50S is actually a bored-out 1.20S for an incredible power-to-weight ratio. With over 20% greater displacement, the 1.50S will happily swing an APC 16x8 prop at 8,800 rpm with 15% fuel.

Key Features:

• Incredible power—2.5 horsepower
• APC 16 X 8 over 9,000 rpm
• Same dimensions and weight as 1.20-size engines
• Stronger and more modern crankcase than the previous version

Specifications:

• Type: 4-stroke
• Displacement: 1.50 cu in (25.00 cc)
• Bore: 1.33 in (34.00 mm)
• Stroke: 1.08 in (27.60 mm)
• Cylinders: Single - Chrome Plated
• Engine (Only) Weight: 30 oz
• Crankshaft Threads: M8 x 1.25mm
• Benchmark Prop: 16x8 APC @ 8,800
• Prop Range: 16x8 - 18x6
• RPM Range: 2,000 - 10,500
• Fuel: 10%-30% Synthetic
• Mounting Dimensions: 138 x 69 x 134 mm
• Muffler Type: Cast
• Cylinder Type: AAC
• Carb Type: Barrel, 2 Needle Valve
• Crank Type: Bal Bearing