O.S. Engine 110FS-a Four-Stroke  [OSMG0990]

You don't compromise, and you also don't wish your engine to, either. The 110FS-a doesn't compromise on performance, delivering 12.5% more energy compared to FS-91SII in identical space! But high-performance doesn't mean high-maintenance. Motor blow-by is caught and re-used to constantly lubricate and bathe the engines working components inside reducing friction and prolonging motor life. Plus, the brand new system eliminates messy cowls alongside oil drainage. What's left is a first-rate motor that sets new criteria and exceeds all objectives. It's the 110FS-a from O.S. - the 4-stroke with muscle tissue.

The adjustable F-5040 muffler can be rotated 360?X and relocated in or out for an ideal fit. Rich, deep sound is an additional advantage.

Features the exact same mounting bolt pattern because the FS-91SII for easy replacement.

A reversible carb and narrower camshaft housing simplify installation.

Tighter tolerances and updated engineering minimize maintenance and simplicity set-up.

Delivers more performance capacity to sport pilots and more practical journey to scale pilots.

Specifications:

• Inventory Quantity: OSMG0990
• Displacement: 1.10 cu in (18.0 cc)
• Bore: 1.196 in (30.4 mm)
• Stroke: 0.976 in (24.8 mm)
• Body weight w/muffler: 21.5 oz (672 g)
• Practical rpm range: 2,000-11,000
• Production: 1.8 hp @ 10,000 rpm
• Includes: 60Y carburetor, F-5040 muffler & F glow plug