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  1. FS-91 Surpass
  2. What is the expected life of an FX 46?
  3. rebuilding
  4. OS FS-70 repair
  5. OS 32 F Helicopter
  6. OS .46fx help....
  7. Is there a new OS 91???
  8. What size is the exhaust thread on OS 91 Surpass
  9. Cost of estimate ?
  10. Should I not repair my os 46sf?
  11. Need help on OS-91 FS II (no pump)
  12. 60 fx cyl peeling
  13. OS 70 SZ no mid range mixture
  14. Instruction Manual 7m Carb.
  15. Gummed up engines
  16. O.S. 46 LA Question
  17. FS-120s III
  18. 46 fx quits
  19. O.S. 1.6FX pressure tap-HELP!
  20. 46fx-h
  21. 46fx-h
  22. OS 160 FX setup
  23. .91 FX Prop selection
  24. Where is Ann Marie?????????????
  25. Fuel Pump
  26. OS 160 Twin exhaust extenders
  27. OS 46FX peeling
  28. Ring for 50SX?
  29. FS needle settings
  30. counter rotating engines
  31. 48 Surpass
  32. Os 30fs
  33. Pressure nipples
  34. OS 15 FP crank thread size
  35. Life Expectancy of the OS 50 SXH
  36. O.S. 1.6FX problem
  37. O.s. Engines Four Stroke
  38. Clattering and lost power in OS 70 FS
  39. Os 46 Fx
  40. O.S BGX performance curves
  41. .46FX rich midrange
  42. fuel for the RX140
  43. Idle mixture adjust for an older OS 1.08
  44. FT- 160 Engine mount
  45. OS FP35 - Old and rusty
  46. OS 32 Mounting hole blocked by remote needle valve?
  47. os 90 fs
  48. OS 46 only starts with Starter
  49. Os .10 Fsr
  50. Os 46 Fx
  51. OS140RX and muffler
  52. OS 46FX - starts backwards
  53. Fs120 Surpass wiyh pump
  54. OS91 Fan conversion
  55. Os 1.6fi
  56. OS 91FX Cutts out and flames out!
  57. Blubbery .50 SX
  58. Os Max 60sr
  59. 1.40RX eating bearings?
  60. lowest displacement O.S engine
  61. O.S. .61 FX help
  62. OS 15 LA liner problems/ what to do?
  63. Fuel Foaming
  64. .91FX Muffler vs .61FX Muffler
  65. .32 Sx
  66. OS 61 Fx substitute muffler
  67. Need answers from the pro's "OS Max 40 SR"
  68. OS 70 Heli engine problem
  69. OS 48fs broke valve cover, any comments?
  70. OS 120 Surpass Non Pump add pump?
  71. OS 70 surpass bogging at full throttle.
  72. OS 140RX pump problems? (long)
  73. OS Drive washer puller
  74. OS 52 low end mixture
  75. os max-H 40
  76. FX46 Cylinder Peeling
  77. 91 FX on U-Can-Do 3D
  78. Replacement Parts for TH engines
  79. I have a question
  80. After Run Oil
  81. Another 1.60/Bisson Pitts Muffler question
  82. Need AM Cross' Help with parts
  83. After run care (OS46)
  84. Does OS engines have warranty?
  85. Please Close Thread.
  86. OS 70 SZ Eng
  87. New OS 50SX missing gasket and leaking
  88. 91 FX quits
  89. Fs 61
  90. 50 SX Running Problem
  91. Os 91 Fx
  92. 50 exhaust baffle
  93. Os Fp 40 Max?
  94. OS91 4-Stroke Question
  95. Bad OS #8 plugs--good A3s
  96. OS 50 SX and Fuel (Oil %)
  97. OS .46fx muffler....screw broke...need back half of muffler
  98. OS .91 FX Troubleshooting
  99. OS 48 Spits fuel out the carb
  100. 1.60FX Pitts Muffler pressure
  101. OS .91Fx to Pump or not to Pump
  102. 1.60FX-FI air valve retention
  103. Prop Nut
  104. 15cvr unusual problem
  105. Static thrust of BGX-1
  106. After run oil on a 46FX
  107. OS 91 VR-DF Small Head
  108. Suggestion: We Need A Os160fx Rear Exhuast For Pattern
  109. Stuck OS 46 FS Muffler
  110. OS 46 FX problems?
  111. OS Engine Trouble ( .15 CV-R) Help!!!
  112. OS Pump?
  113. OS 70 Heli engine
  114. OS gas engines?
  115. Fuels F.A.Q.
  116. Rethinking remote needle valves?
  117. O.S 1.60FX and nitro %
  118. 61 FX Bearings
  119. O.s. .52 Surpass Heli Engine...
  120. 15cvr trouble
  121. torque vs horsepower vs RPM
  122. Service & Repair $$$$
  123. Os160 Rear Exhuast
  124. FT-160 Carburetor
  125. os160fx BACKPLATE ALIGNMENT
  126. Os 46fx
  127. after market mufflers
  128. OS46 break-In discrepancies
  129. OS 46 FX, no full throttle
  130. How to set your high speed needle for optimum in flight performance
  131. Os70
  132. What is the evolution of OS 4 strokes?
  133. 1.60fx , muffler ?
  134. selecting 3- adn 4- bladed props
  135. Info on the OS EFI engines
  136. History of OS engines....
  137. Old OS Max .10
  138. OS FX 1.60 -- Overly Sensitive to Lean Runs ???
  139. 91fx
  140. low power OS 1.60FX
  141. 91fx
  142. Older OS .46 VRM Marine
  143. Runs and Quits "tip of the week"
  144. Need Help With OS 120 III with Pump
  145. OS 1.20 W pump inverted?
  146. Need gaskets for OS 40 SR
  147. os 91 fx
  148. Reverse Rotation Crankshaft for older OS60/61 FSR
  149. OS50 'sneezes'?
  150. 160fx prop 3d
  151. what is the size of thread for the nipple in OS 46fx muffler?
  152. OS .50 SX - Won't die?
  153. .91 FX Props
  154. OS 1.60FX detonation in the midrange
  155. OS and Thunder Tiger story
  156. OS 50 SX Aircraft
  157. Prop size questions
  158. OS max 40 Sr Engine
  159. out of touch for a little while
  160. OT: GP 1/3 Scale Pitts tech notice.
  161. 3 blade prop for .61FX
  162. Os Cz 15
  163. tip of the week: tuned pipes
  164. Dynamite TNT .12R
  165. OS 160FX Cuts out 2/3 tank
  166. Too rich idle
  167. Remote Glow Driver cap wont fit.
  168. Mounting .91 FX horizontal
  169. OS160FX Piston
  170. os 52 surpass
  171. OS CV troubles
  172. Os 50 & CY MP 30%
  173. manuals, expl view, parts lists, dimensions, pricing and more!
  174. O.S. .15 LA from LHS w/o instructions?
  175. 15cvr with 10a carb
  176. A must read!
  177. Os 46 Vx D/f
  178. OS 61Fx Muffler
  179. Best prop for fx160
  180. Os 70 Surpass Runs Eratic At Full Throttle
  181. os max .35 needle valve needed
  182. OS .91 Surpass Problem
  183. OS max FP 40
  184. os 70 surpass throttle postition Q...
  185. In-cowl muffler for OS 91 FX
  186. Out Of Town Notice
  187. OS91Fx air bubbles in needle valve fuel line
  188. Glow plug reaches ??
  189. 91 fx air leaks
  190. OS1.40RX (first series) low end?
  191. Please read before posting...........
  192. OS 160 Shortening stock muffler
  193. The baffle - what's it for?
  194. cleaning .46 FX
  195. OS 1.6 FX Starting question
  196. OS .61 Hanno
  197. O.S. .91FX Lemon (Revisited)
  198. best prop for os bgx
  199. Problem with OS .61RF-ABC-P
  200. Problem with OS .61RF-ABC-P
  201. Parts available for older engines?
  202. Thread questions for carb and glow plug
  203. os 46 fx
  204. Re: os fs 120 sp
  205. OS 46FX Muffler
  206. OS Max .34 F question
  207. O.S. .91FX Lemon
  208. OS300 troubles
  209. O.S. 4-Stroke Headers
  210. 46Fx Warrenty Question
  211. SMOKE -1.60 FX any mufflers out there???
  212. NEW: Ask your O.S. engine questions directly here

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