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  1. FS 48 Surpass
  2. New or Old OS - How do you tell?
  3. ring job
  4. Four stroke mufflers
  5. .46FX to .50SX Upgrade ... help please ...
  6. OS FT-300 FOR MY PITTS SPECIAL
  7. Newly Broken In OS 46 FX
  8. Remote needle valves in os .50 SX and .91 FX
  9. OS 61 FS Muffler?
  10. Can I Make My .61FX a .91?
  11. 40 SR parts
  12. bubbles!! ehhh!
  13. O.S. .61 SX-H Heli Engine- HEIM Mechanics Setup
  14. Tried everything, 46 NV still leaks?
  15. os 46fx..need serious help
  16. OS 40 No compression
  17. OS Max SR-40 Marine - what muffler?
  18. Main bearing broke
  19. Manual for a Max .61 SF?
  20. Tri prop for OS FS70
  21. How to send an item to service
  22. About this Forum
  23. fx 61 loosing power
  24. engine help
  25. OS 91 Surpass-version I
  26. O.S. 25FX and O.S. 25SF
  27. New 91FX muffler missing baffle
  28. OS 91 FX very slow to idle down
  29. os Wankel 1800
  30. OS 91 FX
  31. O.S. 1.08 FSR
  32. I lost a muffler bolt on my 46 fx
  33. Corrosion on piston/cylinder and crank
  34. Port timing 91FX Vs 91SxH
  35. 25 la....
  36. FS-120 surpass fuel setup
  37. 0.s.15 cv-rx refusing to keep running
  38. OS 46 SF
  39. FS-70 header pipe broke on run-in
  40. Pressure Tap OS 91FX
  41. OS60 MAX-H
  42. Bax - OS .10 FSR Con Rod Substitute??
  43. FS90 head stripped
  44. Looking for OS FS-26 Info ...
  45. 46FX - engine rpm up and down at full throttle
  46. Prop Choice
  47. OS 120 w/pump instruction manual needed
  48. OS 120 Surpass I power loss
  49. OS 50 sx Sucking air?
  50. Brass hexagon inlet holder position??
  51. Liner pealing
  52. O.S. 46FX Engine temp
  53. Wankel woes
  54. OS FS-70S head
  55. OS 50 SX making strange noise
  56. 46 LA Prop spun off during break-in run
  57. I'm a newb: OS Max SF 61 With Pump
  58. OS 160FX Bearing Problems?
  59. fx160 needle setting?
  60. OS120 Surpass I Bearings & Gasket Q?
  61. Os .15 Cva
  62. Aeroworks Extra 300L Profile ARF + OS BGX-1 (3500)
  63. Os70 Sz-h Ring
  64. help with surpass 70
  65. oil content and type
  66. Warranty service on OS.91FX, turn around time??
  67. os max 40fp + glow plug
  68. New OS 91 SX acro?
  69. Help with disassemble of OS 120 FS
  70. Position of Fuel Tank
  71. O.S .12 TR(P)-T help.
  72. OS FX 1.60 + Top Flight 18x10
  73. O.S. 32 sx-h gradually lost power
  74. OS 140 RX Bearing
  75. Valve clearence for OS 91 Surpass?
  76. os 300 twin mounting
  77. Surpass 70
  78. Is the Tower plug same as the OS #8???
  79. OS 1.08 low end needle problems
  80. O.S. .46fx
  81. OS .46 fx muffler
  82. 1.60FX Needle Valve replacement
  83. os 61 h wc start off fuel settings
  84. O.S.70B Mixture Control Carb
  85. OS carb # 7DV
  86. OS 46 fx
  87. which muffler?
  88. OS 120 Surpass II head gaskets
  89. 120 Surpass II running lean and needle valve screwed all the way out!?
  90. OS 120 Surpass III optional header
  91. Turnaround time at O.S.
  92. Replacement of my 91FX (Bax)
  93. os 46 fx doesnt turn
  94. 91 Fx
  95. OS 91 MAX Muffler wanted.
  96. the perfect propeller is...
  97. O.S. FS-120S-E Carb leakage
  98. OS FS 91 4 Stroke
  99. 48 surpass compression loss
  100. Ff-240
  101. .21 Rg M
  102. .21 outboard
  103. OS 120 II idle problem
  104. valve adjustment screw
  105. OS screws
  106. 160FX midrange lean condition
  107. OS 91 Fx Quits in mid Range.
  108. Os 160
  109. OS 40 four stroke surpass, idle prob !
  110. os 32 sx
  111. 140Rx & 140EFI Rear Bearings
  112. 40 LA with poor fuel flow (I think)
  113. Torque specs for cyl head screws?
  114. O.S. fuel
  115. advice on Surpass 120 back bearing
  116. O.S. .12 cv-r stalls
  117. OS Max 61FX
  118. 50SX (non-H) on Heli Fuel?
  119. OS .46fx liner peeling?
  120. perry pump on back plate
  121. Os 46sf-p Abc
  122. OS .61 FX missing part?
  123. 46fx breakin
  124. 25LA Problem
  125. OS 50SX Break in ?
  126. 61 FSR carb
  127. starting my o.s..15 cv-x
  128. OS .15 CV probs
  129. OS120III Surpass regulator leaking
  130. In cowl Muffler for 91FX
  131. What prop for OS .46 FX?
  132. Quick question!
  133. OS .40 FP Questions
  134. Response pour over the 46 FX
  135. fx 160
  136. OS FS26S Engine Knocking
  137. OS 40 Surpass C
  138. 91fx mufler
  139. cone baffle ?
  140. We all have some loose screws..
  141. HELP ME! 1.08 FSR Special exhaust?
  142. Antifreez Engine Cleaning Question
  143. o.s. 12 cv-r parts
  144. OS .61FSR ABC Stalling
  145. Unused os max 45fsr-need break-in-is it ABC?
  146. New Os50sx Problem
  147. Os91sx
  148. Getting a used FT-160 Gemini to run
  149. What OS 120 do I have?
  150. Nut for muffler; 40 FSR?
  151. .70 Surpass Timing ?
  152. .61 V parts needed
  153. Manual for OS .61 SF-H
  154. OS 52 Surpass
  155. engine
  156. Fr5-300
  157. Surpass 120 E
  158. OS 61 RFP vs Hanno Special
  159. OS FS-120 Surpass-II with a pump
  160. How to remove and install valve springs from OS FS120SIII with pump?
  161. Need correct part number for thrust washer
  162. A few Questions, and My .46 FX needs rebuilding...
  163. 30% Nitro in OS .32
  164. Couple questions
  165. OS 61 Hanno pump settings?
  166. OS .46Fx damage
  167. 40 & 46 Mounting
  168. OS 50 SX dead sticks
  169. OS FT-120, older model twin...
  170. O.S. .46fx Probs
  171. noisy LA .46
  172. Slimline pitts muffler on 120 III pumped
  173. OS .15 CV-A Slow RPMs???
  174. OS LA 46 not running well
  175. 160 FX issue
  176. 120 III pumped exhaust headers
  177. os 91 surpass
  178. Problem controll on OS52FS
  179. 50 sx max rpm
  180. Os 50sx
  181. os 40 fx question
  182. O.s. 120siii W/pump Wont Run
  183. os 91 surpass-idle screw
  184. O Rings
  185. Connecting Piston rod
  186. break-in of 40 LA??
  187. OS 1.40 RX pipe with 1.60FX?
  188. another os 160 fx question
  189. OS Gemini 120 Twin
  190. 26 Surpass parts
  191. Spares For OS46LA In UK
  192. Tuned pipes
  193. 3H carb settings
  194. OS FR5-300 Radial timing
  195. OS 48 Surpass
  196. Is a 20x8 topflight pwr point too much for my 1.60fx ??
  197. Mounting a 46 fx sideways
  198. Os Fs40
  199. Break-in Question for 1.40RX
  200. Os 61 Fs
  201. 1.60 FX Needle adjustment
  202. 91 fx not running {is it fixed yet }
  203. Os 52 Fs
  204. OS 70 Ultimate??????????
  205. What happening w/ OS .65LA????
  206. 1.20 FS parts
  207. O.S. 1.60Fx + Super Decathalon ???
  208. OS 7L Carb Problem?
  209. 70 Surpass II
  210. New .15 CV-RX for TMAXX 2.5
  211. OS 140RX Piston re-installation
  212. O.s. 46 Sf
  213. OS 1.60 Crank Case Pressure
  214. Another OS140FI question
  215. OS Corporate contact
  216. oil for os max 40fp
  217. OS61 FX problem
  218. Os Fs-91s
  219. Os 160ft Rpm
  220. Just bought a .15 CV-X, cant start
  221. Os 1.20 E
  222. OS FS70 Timing
  223. OS 46 FX - weak - worn? How to tell
  224. Os 70 Ii Rpm
  225. OS parts availability, whats up?
  226. Teflon wrist pin plugs
  227. 61 FX ABC with OS quiet muffler
  228. Connecting Rod?
  229. Need to know about compression
  230. O.s. 1.08
  231. need help getting a part 46fx
  232. 120 Surpass III break-in & exhaust system info
  233. OS 160 Overheats
  234. OS RZ engine
  235. ft-120
  236. OS140FI throttle limit setting question and one observation.
  237. OS max 1.60 fx
  238. 90 Fs
  239. FX-91 issue
  240. Os 40 Fp
  241. Muffler Bolts for OS 46 FX
  242. OS91FX prop sizes and other questions??
  243. OS FS .48 prop and needle settings
  244. os 50 FSR need parts
  245. an easy 1.60 FX one-
  246. os 25fsr abc
  247. os cv-x
  248. Os 61 Fx & Sf
  249. Os 1.08
  250. Pressure tap on FS 26-C?