O.S. Engine FS-91 Surpass II with Pump   [OSMG0890]

Brand new regulating style pump, usually just present in 1.20 course engines, delivers better reaction and reliability

Backside ball bearing is rubber-sealed on both sides and greased internally to assistance inhibit bearing corrosion

The crankshaft, cam shaft and piston band are all plated to further resist corrosion

Features a reversible carbohydrate which allows the needle valve to face either the left or right side associated with the motor

Ebony anodized rocker address

A large-volume muffler offers better noise decrease for milder noise

SPECIFICATIONS

• Inventory Number: OSMG0890
• Displacement: 0.912 cu in (14.95 cc)
• Bore: 1.091 in (27.7 mm)
• Stroke: 0.976 in (24.8 mm)
• Practical rpm: 2,000-12,000
• Production: 1.6 hp @ 11,000 rpm
• Weight w/muffler & manifold: 23.9 oz. (678 g)
• Weight w/o muffler & manifold: 22.2 oz. (630 g)
• Recommended Props: Stunt: 11x10, 11x11, 12x9.5, 12x10, 12x11; Scale: 13.5x8, 14x7, 15x6, 16x6, 12x8 3-blade, 12.5x7 3-blade