O.S. Model no. 35410

Specifications:
Weight: 600g (672g w/silencer)
Displacement: 18.0cc
Bore: 30.4mm
Stroke: 24.8mm
Power Output: 1.8PS @ 10,000RPM
Practical RPM: 2,000 – 11,000

You don`t compromise, and you don`t want your engine to, either. The 110FS-a doesn`t compromise on performance, delivering 12.5% more power than the FS-91SII in the same space! But high-performance doesn`t mean high-maintenance. Engine blow-by is trapped and re-used to constantly lubricate and bathe the engines working parts inside reducing friction and prolonging engine life. Plus, the new system eliminates messy cowls and other oil drainage. What`s left is a first-rate engine that sets new standards and exceeds all expectations. It`s the 110FS-a from O.S. - the 4-stroke with muscle.
Designed specifically to offer more power and torque compared to a .91 size four stroke, yet still fit in the same mounting dimensions, the FSa-110 is a real compact powerhouse.
Like all FSa series engines, the FSa-110 has near perfect carburation across the RPM range, and thanks to the carefully designed exhaust, a soft yet authoritive note to minimise your presence to the neighbours.
Precision carburation, internal oil recirculation and dramatic styling are all features of the FSa range and put this and the other derivatives that cut above the opposition.