O.S. Engines in Japan have released some info of a new 3.5cc inboard marine engine called MAX-21XZ-M. The new engine is a long-stroke motor (the old MAX-21VZ-M is/was a short-stroke) and seems to be based on the geometry of the MAX-21XZ-B buggy car engine.- Displacement: 3.49 cc (0.213 cu.in.)
- Bore: 16.27 mm (0.641 in.)
- Stroke: 16.8 mm (0.661 in.)
- Output: 2.75 ps / 33.000 RPM
- Weight: 307.5 g (10.85 oz.)
