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OS FS-40 S-C & FS-40 S-CX

4-stroke sound and O.S. power for 1:8 scale!

Nothing beats a 4-stroke for producing lower, quieter, more realistic exhaust sound...and no one beats O.S. when it comes to developing a high-performance, nitro power plant. The new FS-40S-C engine delivers tremendous torque for long climbs and twisty tracks, as well as a bottom-end burst of speed for quick take-offs. Plus, it offers better fuel economy than 2-strokes.

  • Features a rear-mounted Type 40P rotary carb with screwdriver-adjustable throttle stop screw and main needle
  • The in-line fuel inlet rotates 360 for optimum installation ease
  • A black alumite coating on the crankcase and rocker cover and heat-dissipating fin that extends from the head to the crankcase increase cooling capacity and life expectancy
  • The camshaft features advanced timing, a helical gear drive and ball bearing supports for smooth, high-performance operation
  • Other features include a ball bearing-supported crankshaft, ringed piston design, a drilled/tapped rear cover, and the option of a heavy-duty recoil starter for added convenience
  • Available with or without a heavy-duty recoil starter
  • Includes: Type F glow plug, #201 air cleaner
    Requires: muffler, manifold, glow fuel w/10-20% nitro content & 18% oil content (not common 4-stroke fuel)

Reinforced valve springs on the FS-40S-C increase their stiffness, and reduce high rpm "floating".

Displacement 0.396 cu.in (6.49 cc)
Bore 0.835 in (21.2 mm)
Stroke 0.72 in (18.4 mm)
RPM 3000 - 21000

Output

0.9 BHP @ 17500 RPM
Weight 11.4 oz (324 g)
   
Price R Not Available

Also available with recoil starter