View Full Version : O.S. Engines Support



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  1. O.S 120 AX cooling question
  2. What Engine Size
  3. OS 15FP Prop Nut
  4. TDC Pinch getting "worse"?
  5. BX-1 (1.08 FSR?) drive washer needed
  6. OS 40 SF
  7. OS .91 problem
  8. OS FS-120S-E
  9. ENGINE STORAGE QUESTION PLEASE.
  10. FS-120III Disassembly
  11. OS Wankel 30's
  12. OS .91 FX Over heating Problem
  13. Fuel tube size for 95AX and 1.20AX
  14. OS 46 FX
  15. OS 55AX and pitts muffler
  16. OS FS200- Carbi Reversal Issue
  17. 120 4 stroke
  18. cylinder head 50 heli
  19. OS Max Muffler Replacement
  20. OS 120AX
  21. FS-200S-P Leaking Pressure Regulator
  22. OS FT-160 Choke assembly pad
  23. O.S.61SF
  24. How to disassemble O.S. 140 RX
  25. FS120 Surpass III Question
  26. OS FSA 110 Problem
  27. 1.08 Carb
  28. 2 OS fs.91 mufflers with worn threads-Problem & fix?
  29. FT-160 Twin in Vario Boxer Heli
  30. MOVED: Need OS SF "P" 61 Engine Box
  31. O.S. 1984 FS-120 Before Surpass ( Looks like a Saito)
  32. MOVED: 1984 O.S. FS-120 (Before Surpass)
  33. OS 55ax
  34. Nozzle assemblies for 40FP and 25FP
  35. OS61SF ABC Pumped Won't Idle
  36. Muffler nut size for OS 46LA stock muffler
  37. OS95 AX vs OS120AX
  38. pump for OS 91 fx
  39. OS 61 Heli - Aircraft ?
  40. OS 40 VR-P Cylinder head
  41. OS .95V In-Cowl Exhaust Header Pipe
  42. servicing 120 Surpass III pump
  43. a 61fx thing
  44. .65LA preset for airbleed
  45. Klotz oil
  46. O.S. .91 surpass II not reaching top RPM
  47. OS 60 with Perry carb and pump, help!
  48. .46 LA Muffler on .46 AX
  49. OS FS120 Surpass-E or FS110a
  50. O.S. 91 Surpass - New - loads up/stops
  51. BGX3500 prop and cone
  52. OLd OS 25 max
  53. NEEDle valve bracket, remote setup BGX
  54. st-15 engine replacement
  55. OS 120 lll Pump
  56. os FS-120 surpass
  57. Problem with FS91SII
  58. FT-120 Gemini II
  59. OS MAX 15 fuel consumption
  60. OS FS-200 distance to engine
  61. up side down
  62. OS81 FSa Pumped Main needle sensitivity
  63. os 55 ax connecting rod problem
  64. Head Bolts on 75 ax
  65. OS fs 48 Surpass running problem
  66. Will an OS 46FX piston/liner fit an OS 40FX engine?
  67. OS Max .61FX Muffler
  68. MOVED: 21204310 .12 buggy head???
  69. OS FL70 front bearing removal
  70. OS Exhaust Headers
  71. MOVED: OS 120 Surpass 2, where do I get spares?
  72. Engine getting too hot
  73. OS 91 FS Pump not pulling fuel. Help?
  74. motor mount problem
  75. OS 46 FX Question for Bax.
  76. os 55 ax carburetor
  77. OS FS110a Low rpms ?
  78. os fs-48 Surpass my first 4 stroker tear down
  79. OS SX 50 H-ring...little help please..
  80. BAX 95AX question
  81. OS 61 FX
  82. OS 120 Surpass FS Series
  83. CV Technology
  84. 61fx or 75fx
  85. Lower Pitched Prop on OS 46FX
  86. Difference between OS E-3020 and E-3070 Silencer
  87. Pumped OS FS-91 surges at full throttle
  88. OS 70 Surpass
  89. FX-25 vs AX-25
  90. OLDER OS FS 90/91 METAL THROTTLE ARM
  91. O.S. 1.20 FS Surpass III
  92. O.S. 1.60FX Pusher
  93. OS 46SF low end needle setting
  94. .46AX frame size
  95. help id this OS engine heatsink
  96. o.s .25xz break in procedure
  97. OS 120 head replacement
  98. OS FS120 SE head question
  99. Fs 90 bearing replacement
  100. OS .10 Piston Pin
  101. error
  102. 46 AX engine
  103. OS .18TM Piston "damage?"
  104. OS 15CV-X - ticking noise
  105. OS 1.08 Tuning
  106. older os 91 fx intregal backplate mounted nva
  107. OS 18tm questions
  108. MOVED: OS FS-90 Manual
  109. Pullstart motor with non-pullstart flywheel
  110. Manual needed
  111. Os 55ax midrange problem
  112. OS 46 AX knock
  113. older os 40fs
  114. Flexible Exhaust pipes
  115. OS Max 60 FP Needle Valve
  116. OS 4 stroke muffler extension ?
  117. OS 91FX tunning problem
  118. OS 120FSIII gasket
  119. Old O.S. FS90
  120. OS FSa-155-P 4 stroke. When?
  121. OS 108
  122. FS-120S III-P CRANKSHAFT PROBLEM
  123. OS FS 91SII w/ pump question
  124. OS FX 160 lean
  125. OS 52 Exhaust Pipe
  126. OS FS - .91 Surpass II Muffler Inlet Pipe Breakage
  127. OS 110a Pitts!
  128. OS 4 stroke 110 prop
  129. OS 1.08 Props
  130. o.s. sf 60 cam an valve setting
  131. OS 55AX keeps cutting out in mid-range
  132. OS 61 CAM COVER NEEDED>>>
  133. o.s. sf 60 cam an valve setting
  134. MOVED: OS 20 FS SOS - part wanted
  135. OS 70 carb
  136. Sirius 7 Radial Four Stroke
  137. OS10LA fuel draw
  138. BGX Installation ?
  139. OS 200 FS Non Pumped Top end issue
  140. OS MAX 15 PARTS WANTED>>
  141. MOVED: I also purchased a Bo-Link 13 inch Funny Car
  142. head screws for os
  143. FR5-300 bearings
  144. OS 61 MAX SF
  145. OS 1.60 FX
  146. 55AX rear bearing?
  147. Timing mark position relative to crank pin on my FS .26 Surpass
  148. OS 90FS stuck pushrod
  149. OS 70 FS Engine
  150. OS 55ax mid range tuning
  151. Air cleaners
  152. Vintage FT-300 Question
  153. OS 50 Hyper and 30% nitro
  154. o.s. 40 la o.s max
  155. 46 FX default idle screw position
  156. FS-120SIII Pumped
  157. An OS 50sx question
  158. OS 91 FS surpassII pumped
  159. MOVED: Drive washer for .40SF
  160. .40FSR
  161. OS 4 cycle 120 III pump Version
  162. Is the 120 III pump bad?
  163. Old ft120 carburator and very old 120 cylinder head.
  164. UPDATED QUESTION - OS 120AX NEEDLE HELP
  165. FS-91S No Pump, Needle Valve Setting
  166. OS .91 Surpass (old) replacement carb
  167. OS.75 Knocking
  168. O.S. maxx 25 fp
  169. O.S. SF FX
  170. OS 26
  171. OS.55AX Thortle problem
  172. OS FS 110 MUFFLER
  173. plane for os.10
  174. 120ax
  175. 75AX/95Ax same Power Box Muffler ??
  176. crankshaft movement after bearing replacement
  177. what engine for OS A3 glow plug.
  178. OS.75AX 90* muffler adapter
  179. Os engine suggestion
  180. OS 46FX Throttle body repair
  181. OS 160 Gemini Propeller Spacer
  182. O.S. 61 sx-h cylinder head replacement
  183. MOVED: OS 90 parts
  184. MOVED: I am getting on a plane to Japan for OS support
  185. OS Engines Target RPM
  186. Rear Bearing replace 46fx
  187. os.18cv-r
  188. Os Alpha 4 strokes Rusted Bearings!!
  189. OS 81a FS props
  190. OS FS-91S needle setting
  191. 120 Gemini II reassembly
  192. OS 91 Surpass Muffler Pipe Breaks...
  193. bgx 3500
  194. .70 Surpass II
  195. rc engine crankcase bearings when to replace?
  196. New To OS Please Help.
  197. OS bearings
  198. Who can tell the the HS position on OS 110-P
  199. noisy engine
  200. 46AX problems
  201. OS 120
  202. MOVED: OS OR MAGNUM 4 STROKE INVERTED
  203. GT55 Propeller Drill Fixture
  204. BGX question for BAX
  205. Is large diameter fuel tubing absolutely needed ?
  206. OS 75AX Break-in Procedure
  207. FS-81a manual
  208. 120 surpass III bogs down on full
  209. MOVED: replacement engine for tamiya nitro thunder
  210. what os engine is compatible with tamiya nitro thunder
  211. OS Ft-160 Twin PROBLEMS
  212. OS FT-300 Exhaust
  213. OS 91 Surpass P
  214. OS 61 FX carb
  215. OS carb change
  216. Engine screams with throttle closed, crack/air leak?
  217. .91 crankshaft part number.
  218. OS FS200 typical RPM?
  219. OS 200FS lost compression
  220. os .18 tm problem
  221. OS61RF pump exploded view
  222. 91fx piston cleaning
  223. turbo plugs
  224. OS FS-80 - anno 1982 version
  225. OS21tm Crank
  226. 91FX getting hot
  227. OS 91 FS Surpass Prop.
  228. OS 91 Surpass II
  229. muffler
  230. O.S. .120 Surpass Retrofit
  231. OS 120 surpass E plumbing??
  232. OS 4 Stroke valve kit
  233. OS 91 S II
  234. Difference between Surpass and Surpass II?
  235. OS 61 MAX SF
  236. OS91 heli engine cutting at mid power
  237. Os 91 Fx
  238. OS 46fx
  239. Fr5-300 sirius breather nipple
  240. OS FL-70 idle problem
  241. Accurate compression test.
  242. OS FS .90 Surpass priming help.....
  243. 55 AX vapor lock
  244. OS 55ax new (15611) vs old (15610)
  245. Problem with OS 61FX
  246. OS .21TM Fuel Question?
  247. Leaking front bearing
  248. OS 46 AX fuel feed problems
  249. Surpass parts interchangeability
  250. OS91FX Props

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