View Full Version : O.S. Engines Support



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

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