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