View Full Version : O.S. Engines Support



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

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