The new crankcase design and blue anodized rocker cover are symbols of this new generation FS Series 4-stroke.
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Mounting bolt pattern, distance between crankcase and propeller and throttle lever position are the same as those of the FS-70SII
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The latest available materials are utilized for the internal parts such as high silicon aluminum for the piston.
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A unique feature of the FS Series is the new and innovative blow-by oil treatment system which eliminates the crankcase vent. Instead of ejecting the blow-by oil out of the crankcase by means of the breather nipple, the oil is now sucked from the crankcase via the pushrod tube to the rocker chamber and injected into the cylinder via a hole leading to the intake valve.
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The new silencer can be adjusted both in and out as well as rotated to meet individual cowling requirements. |
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The silencer exhaust outlet can be rotated 360 degrees.
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@A bold new design and sharp cooling fins are unique to the FS Series. The silencer can be adjusted both in and out as well as rotated to match individual cowling requirements. Internal parts employ the latest available materials and are machined with the latest technology. Models designed to be powered by 2-stroke .40-.60 size engines would be suitable for the FS-81 engine. Ample power is available for those heavier, scale type models.
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