Really good engine, kept well lubricated. Engine turns over freely and has good compression. Surplus to my needs.

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This is the FS 70 Surpass II Four-Stroke Engine from O.S. Max.
Used for .40 to .46 sized model airplanes.

FEATURES: New carburetor and tapered needle for smooth throttle response.
90-degree pressure fitting in crankcase routes blow-by to intake
manifold, resulting in a cleaner running engine.
Carburetor is mounted on centerline of the engine.
Both carburetor adjustment needles are located on one side of
carburetor, for easy adjustment.
Black anodized rocker arm cover.
Larger muffler for quieter operation.
Crankcase vent is now connected to the intake manifold by silicone
tubing. This keeps the inside of the cowling cleaner.

INCLUDES: One FS-70S II Four-Stroke Engine.
One Type #F Glow Plug
One F-4020 Silencer
One Exhaust Header Pipe
(Wrenches, Choke Valve Extension, and Mounting Template Are No
Longer Included per O.S.)


SPECS: Displacement: 11.50cc
Bore: 25.8mm (1.02")
Stroke: 22.0mm (.866")
Power Output: 1.1hp @ 11,000 rpm
Practical RPM: 2,000 to 12,000 rpm
Weight: 580g
Weight- w/o muffler: 20.1 oz w/muffler: 20.65 o