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  1. Os .91fx
  2. My OS 10 wont run right
  3. HELP! My engine won't run!
  4. os52 exhaust
  5. O.S 120 II pumped
  6. More RPM's
  7. FX 46 making me nutz
  8. 18x6W or 20x6 for 1.60 FX
  9. 40LA Muffler fasteners
  10. C/L to RC conversion
  11. OS 46 & 61 SF ring replacement
  12. OS 70 Surpass
  13. FS-91 Surpass
  14. What is the expected life of an FX 46?
  15. rebuilding
  16. OS FS-70 repair
  17. OS 32 F Helicopter
  18. OS .46fx help....
  19. Is there a new OS 91???
  20. What size is the exhaust thread on OS 91 Surpass
  21. Cost of estimate ?
  22. Should I not repair my os 46sf?
  23. Need help on OS-91 FS II (no pump)
  24. 60 fx cyl peeling
  25. OS 70 SZ no mid range mixture
  26. Instruction Manual 7m Carb.
  27. Gummed up engines
  28. O.S. 46 LA Question
  29. FS-120s III
  30. 46 fx quits
  31. O.S. 1.6FX pressure tap-HELP!
  32. 46fx-h
  33. 46fx-h
  34. OS 160 FX setup
  35. .91 FX Prop selection
  36. Where is Ann Marie?????????????
  37. Fuel Pump
  38. OS 160 Twin exhaust extenders
  39. OS 46FX peeling
  40. Ring for 50SX?
  41. FS needle settings
  42. counter rotating engines
  43. 48 Surpass
  44. Os 30fs
  45. Pressure nipples
  46. OS 15 FP crank thread size
  47. Life Expectancy of the OS 50 SXH
  48. O.S. 1.6FX problem
  49. O.s. Engines Four Stroke
  50. Clattering and lost power in OS 70 FS
  51. Os 46 Fx
  52. O.S BGX performance curves
  53. .46FX rich midrange
  54. fuel for the RX140
  55. Idle mixture adjust for an older OS 1.08
  56. FT- 160 Engine mount
  57. OS FP35 - Old and rusty
  58. OS 32 Mounting hole blocked by remote needle valve?
  59. os 90 fs
  60. OS 46 only starts with Starter
  61. Os .10 Fsr
  62. Os 46 Fx
  63. OS140RX and muffler
  64. OS 46FX - starts backwards
  65. Fs120 Surpass wiyh pump
  66. OS91 Fan conversion
  67. Os 1.6fi
  68. OS 91FX Cutts out and flames out!
  69. Blubbery .50 SX
  70. Os Max 60sr
  71. 1.40RX eating bearings?
  72. lowest displacement O.S engine
  73. O.S. .61 FX help
  74. OS 15 LA liner problems/ what to do?
  75. Fuel Foaming
  76. .91FX Muffler vs .61FX Muffler
  77. .32 Sx
  78. OS 61 Fx substitute muffler
  79. Need answers from the pro's "OS Max 40 SR"
  80. OS 70 Heli engine problem
  81. OS 48fs broke valve cover, any comments?
  82. OS 120 Surpass Non Pump add pump?
  83. OS 70 surpass bogging at full throttle.
  84. OS 140RX pump problems? (long)
  85. OS Drive washer puller
  86. OS 52 low end mixture
  87. os max-H 40
  88. FX46 Cylinder Peeling
  89. 91 FX on U-Can-Do 3D
  90. Replacement Parts for TH engines
  91. I have a question
  92. After Run Oil
  93. Another 1.60/Bisson Pitts Muffler question
  94. Need AM Cross' Help with parts
  95. After run care (OS46)
  96. Does OS engines have warranty?
  97. Please Close Thread.
  98. OS 70 SZ Eng
  99. New OS 50SX missing gasket and leaking
  100. 91 FX quits
  101. Fs 61
  102. 50 SX Running Problem
  103. Os 91 Fx
  104. 50 exhaust baffle
  105. Os Fp 40 Max?
  106. OS91 4-Stroke Question
  107. Bad OS #8 plugs--good A3s
  108. OS 50 SX and Fuel (Oil %)
  109. OS .46fx muffler....screw broke...need back half of muffler
  110. OS .91 FX Troubleshooting
  111. OS 48 Spits fuel out the carb
  112. 1.60FX Pitts Muffler pressure
  113. OS .91Fx to Pump or not to Pump
  114. 1.60FX-FI air valve retention
  115. Prop Nut
  116. 15cvr unusual problem
  117. Static thrust of BGX-1
  118. After run oil on a 46FX
  119. OS 91 VR-DF Small Head
  120. Suggestion: We Need A Os160fx Rear Exhuast For Pattern
  121. Stuck OS 46 FS Muffler
  122. OS 46 FX problems?
  123. OS Engine Trouble ( .15 CV-R) Help!!!
  124. OS Pump?
  125. OS 70 Heli engine
  126. OS gas engines?
  127. Fuels F.A.Q.
  128. Rethinking remote needle valves?
  129. O.S 1.60FX and nitro %
  130. 61 FX Bearings
  131. O.s. .52 Surpass Heli Engine...
  132. 15cvr trouble
  133. torque vs horsepower vs RPM
  134. Service & Repair $$$$
  135. Os160 Rear Exhuast
  136. FT-160 Carburetor
  137. os160fx BACKPLATE ALIGNMENT
  138. Os 46fx
  139. after market mufflers
  140. OS46 break-In discrepancies
  141. OS 46 FX, no full throttle
  142. How to set your high speed needle for optimum in flight performance
  143. Os70
  144. What is the evolution of OS 4 strokes?
  145. 1.60fx , muffler ?
  146. selecting 3- adn 4- bladed props
  147. Info on the OS EFI engines
  148. History of OS engines....
  149. Old OS Max .10
  150. OS FX 1.60 -- Overly Sensitive to Lean Runs ???
  151. 91fx
  152. low power OS 1.60FX
  153. 91fx
  154. Older OS .46 VRM Marine
  155. Runs and Quits "tip of the week"
  156. Need Help With OS 120 III with Pump
  157. OS 1.20 W pump inverted?
  158. Need gaskets for OS 40 SR
  159. os 91 fx
  160. Reverse Rotation Crankshaft for older OS60/61 FSR
  161. OS50 'sneezes'?
  162. 160fx prop 3d
  163. what is the size of thread for the nipple in OS 46fx muffler?
  164. OS .50 SX - Won't die?
  165. .91 FX Props
  166. OS 1.60FX detonation in the midrange
  167. OS and Thunder Tiger story
  168. OS 50 SX Aircraft
  169. Prop size questions
  170. OS max 40 Sr Engine
  171. out of touch for a little while
  172. OT: GP 1/3 Scale Pitts tech notice.
  173. 3 blade prop for .61FX
  174. Os Cz 15
  175. tip of the week: tuned pipes
  176. Dynamite TNT .12R
  177. OS 160FX Cuts out 2/3 tank
  178. Too rich idle
  179. Remote Glow Driver cap wont fit.
  180. Mounting .91 FX horizontal
  181. OS160FX Piston
  182. os 52 surpass
  183. OS CV troubles
  184. Os 50 & CY MP 30%
  185. manuals, expl view, parts lists, dimensions, pricing and more!
  186. O.S. .15 LA from LHS w/o instructions?
  187. 15cvr with 10a carb
  188. A must read!
  189. Os 46 Vx D/f
  190. OS 61Fx Muffler
  191. Best prop for fx160
  192. Os 70 Surpass Runs Eratic At Full Throttle
  193. os max .35 needle valve needed
  194. OS .91 Surpass Problem
  195. OS max FP 40
  196. os 70 surpass throttle postition Q...
  197. In-cowl muffler for OS 91 FX
  198. Out Of Town Notice
  199. OS91Fx air bubbles in needle valve fuel line
  200. Glow plug reaches ??
  201. 91 fx air leaks
  202. OS1.40RX (first series) low end?
  203. Please read before posting...........
  204. OS 160 Shortening stock muffler
  205. The baffle - what's it for?
  206. cleaning .46 FX
  207. OS 1.6 FX Starting question
  208. OS .61 Hanno
  209. O.S. .91FX Lemon (Revisited)
  210. best prop for os bgx
  211. Problem with OS .61RF-ABC-P
  212. Problem with OS .61RF-ABC-P
  213. Parts available for older engines?
  214. Thread questions for carb and glow plug
  215. os 46 fx
  216. Re: os fs 120 sp
  217. OS 46FX Muffler
  218. OS Max .34 F question
  219. O.S. .91FX Lemon
  220. OS300 troubles
  221. O.S. 4-Stroke Headers
  222. 46Fx Warrenty Question
  223. SMOKE -1.60 FX any mufflers out there???
  224. NEW: Ask your O.S. engine questions directly here