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

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