March 13, 2024
O.S. 70SZ-H Ringed heli airplane muffler align thunder tiger raptor motor nitro
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this is an OS 70 sz h that has seen maybe 1 tank of fuel this motor is so clean that when I removed the fan I had to take a picture of the back end it comes with the pipe also super clean this motor can be used as an airplane motor you will need a half moon and a thrust washer. even thought he motor is just about new it is sold as is do to the dumb thumbs out there. :) This is the .70 SZ-H Ring Engine from O.S. designed with the FAI F3C Pilot in mind. FEATURES: Ringed for long life. 3-needle carb for ultimate tuning precision. (Settings are covered on pages 14 & 15 of the manual) High Speed: 2 turns OUT Medium Speed: 1 tunn OUT Idle Mixture: Refer to picture on page 14 Two extra mounting lugs on front allow modelers to mount engine securely in helis. Designed with the FAI F3C competitor in mind, allowing 3D pilots an edge over the standard .60 size engine. Throttle assembly reference marks make it easy to note and restore finely tuned settings after maintenance. Front and rear ball bearing-supported crankshaft reduces friction and wear. Large heli cylinder head offers generous cooling fin area, with increased webbing on crankcase front for heat dissipation. Installs in the same space as a .61 engine. INCLUDES: One .70SZ-H Ringed Helicopter engine #8 OS Glow Plug and Decals REQUIRES: Muffler & Fuel SPECS: Displacement: 11.50cc
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