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  1. Muffler for OS 160 fx
  2. Surpass 120 w/pump
  3. Pumped FS 70?
  4. 46 FX Exhaust
  5. Air Bleed Adjustment LA 46
  6. 1.6FX - NIB crank won't turn
  7. Submerged O.S. F.S. 52 Four Stroke
  8. OS 1.60FX power?
  9. Pumped .61SF fuel line connections
  10. FS 90 backfire and needle valve problems
  11. OS 160 fx port timing
  12. os fx .61, pitts problem
  13. os surpass 70
  14. Carb setting on 21RG
  15. OS 25 needs more grunt
  16. Super heated OS .91FX, AMC:Help!
  17. Ziroli B-25 (101) approx 35 lbs
  18. Os .91fx
  19. My OS 10 wont run right
  20. HELP! My engine won't run!
  21. os52 exhaust
  22. O.S 120 II pumped
  23. More RPM's
  24. FX 46 making me nutz
  25. 18x6W or 20x6 for 1.60 FX
  26. 40LA Muffler fasteners
  27. C/L to RC conversion
  28. OS 46 & 61 SF ring replacement
  29. OS 70 Surpass
  30. FS-91 Surpass
  31. What is the expected life of an FX 46?
  32. rebuilding
  33. OS FS-70 repair
  34. OS 32 F Helicopter
  35. OS .46fx help....
  36. Is there a new OS 91???
  37. What size is the exhaust thread on OS 91 Surpass
  38. Cost of estimate ?
  39. Should I not repair my os 46sf?
  40. Need help on OS-91 FS II (no pump)
  41. 60 fx cyl peeling
  42. OS 70 SZ no mid range mixture
  43. Instruction Manual 7m Carb.
  44. Gummed up engines
  45. O.S. 46 LA Question
  46. FS-120s III
  47. 46 fx quits
  48. O.S. 1.6FX pressure tap-HELP!
  49. 46fx-h
  50. 46fx-h
  51. OS 160 FX setup
  52. .91 FX Prop selection
  53. Where is Ann Marie?????????????
  54. Fuel Pump
  55. OS 160 Twin exhaust extenders
  56. OS 46FX peeling
  57. Ring for 50SX?
  58. FS needle settings
  59. counter rotating engines
  60. 48 Surpass
  61. Os 30fs
  62. Pressure nipples
  63. OS 15 FP crank thread size
  64. Life Expectancy of the OS 50 SXH
  65. O.S. 1.6FX problem
  66. O.s. Engines Four Stroke
  67. Clattering and lost power in OS 70 FS
  68. Os 46 Fx
  69. O.S BGX performance curves
  70. .46FX rich midrange
  71. fuel for the RX140
  72. Idle mixture adjust for an older OS 1.08
  73. FT- 160 Engine mount
  74. OS FP35 - Old and rusty
  75. OS 32 Mounting hole blocked by remote needle valve?
  76. os 90 fs
  77. OS 46 only starts with Starter
  78. Os .10 Fsr
  79. Os 46 Fx
  80. OS140RX and muffler
  81. OS 46FX - starts backwards
  82. Fs120 Surpass wiyh pump
  83. OS91 Fan conversion
  84. Os 1.6fi
  85. OS 91FX Cutts out and flames out!
  86. Blubbery .50 SX
  87. Os Max 60sr
  88. 1.40RX eating bearings?
  89. lowest displacement O.S engine
  90. O.S. .61 FX help
  91. OS 15 LA liner problems/ what to do?
  92. Fuel Foaming
  93. .91FX Muffler vs .61FX Muffler
  94. .32 Sx
  95. OS 61 Fx substitute muffler
  96. Need answers from the pro's "OS Max 40 SR"
  97. OS 70 Heli engine problem
  98. OS 48fs broke valve cover, any comments?
  99. OS 120 Surpass Non Pump add pump?
  100. OS 70 surpass bogging at full throttle.
  101. OS 140RX pump problems? (long)
  102. OS Drive washer puller
  103. OS 52 low end mixture
  104. os max-H 40
  105. FX46 Cylinder Peeling
  106. 91 FX on U-Can-Do 3D
  107. Replacement Parts for TH engines
  108. I have a question
  109. After Run Oil
  110. Another 1.60/Bisson Pitts Muffler question
  111. Need AM Cross' Help with parts
  112. After run care (OS46)
  113. Does OS engines have warranty?
  114. Please Close Thread.
  115. OS 70 SZ Eng
  116. New OS 50SX missing gasket and leaking
  117. 91 FX quits
  118. Fs 61
  119. 50 SX Running Problem
  120. Os 91 Fx
  121. 50 exhaust baffle
  122. Os Fp 40 Max?
  123. OS91 4-Stroke Question
  124. Bad OS #8 plugs--good A3s
  125. OS 50 SX and Fuel (Oil %)
  126. OS .46fx muffler....screw broke...need back half of muffler
  127. OS .91 FX Troubleshooting
  128. OS 48 Spits fuel out the carb
  129. 1.60FX Pitts Muffler pressure
  130. OS .91Fx to Pump or not to Pump
  131. 1.60FX-FI air valve retention
  132. Prop Nut
  133. 15cvr unusual problem
  134. Static thrust of BGX-1
  135. After run oil on a 46FX
  136. OS 91 VR-DF Small Head
  137. Suggestion: We Need A Os160fx Rear Exhuast For Pattern
  138. Stuck OS 46 FS Muffler
  139. OS 46 FX problems?
  140. OS Engine Trouble ( .15 CV-R) Help!!!
  141. OS Pump?
  142. OS 70 Heli engine
  143. OS gas engines?
  144. Fuels F.A.Q.
  145. Rethinking remote needle valves?
  146. O.S 1.60FX and nitro %
  147. 61 FX Bearings
  148. O.s. .52 Surpass Heli Engine...
  149. 15cvr trouble
  150. torque vs horsepower vs RPM
  151. Service & Repair $$$$
  152. Os160 Rear Exhuast
  153. FT-160 Carburetor
  154. os160fx BACKPLATE ALIGNMENT
  155. Os 46fx
  156. after market mufflers
  157. OS46 break-In discrepancies
  158. OS 46 FX, no full throttle
  159. How to set your high speed needle for optimum in flight performance
  160. Os70
  161. What is the evolution of OS 4 strokes?
  162. 1.60fx , muffler ?
  163. selecting 3- adn 4- bladed props
  164. Info on the OS EFI engines
  165. History of OS engines....
  166. Old OS Max .10
  167. OS FX 1.60 -- Overly Sensitive to Lean Runs ???
  168. 91fx
  169. low power OS 1.60FX
  170. 91fx
  171. Older OS .46 VRM Marine
  172. Runs and Quits "tip of the week"
  173. Need Help With OS 120 III with Pump
  174. OS 1.20 W pump inverted?
  175. Need gaskets for OS 40 SR
  176. os 91 fx
  177. Reverse Rotation Crankshaft for older OS60/61 FSR
  178. OS50 'sneezes'?
  179. 160fx prop 3d
  180. what is the size of thread for the nipple in OS 46fx muffler?
  181. OS .50 SX - Won't die?
  182. .91 FX Props
  183. OS 1.60FX detonation in the midrange
  184. OS and Thunder Tiger story
  185. OS 50 SX Aircraft
  186. Prop size questions
  187. OS max 40 Sr Engine
  188. out of touch for a little while
  189. OT: GP 1/3 Scale Pitts tech notice.
  190. 3 blade prop for .61FX
  191. Os Cz 15
  192. tip of the week: tuned pipes
  193. Dynamite TNT .12R
  194. OS 160FX Cuts out 2/3 tank
  195. Too rich idle
  196. Remote Glow Driver cap wont fit.
  197. Mounting .91 FX horizontal
  198. OS160FX Piston
  199. os 52 surpass
  200. OS CV troubles
  201. Os 50 & CY MP 30%
  202. manuals, expl view, parts lists, dimensions, pricing and more!
  203. O.S. .15 LA from LHS w/o instructions?
  204. 15cvr with 10a carb
  205. A must read!
  206. Os 46 Vx D/f
  207. OS 61Fx Muffler
  208. Best prop for fx160
  209. Os 70 Surpass Runs Eratic At Full Throttle
  210. os max .35 needle valve needed
  211. OS .91 Surpass Problem
  212. OS max FP 40
  213. os 70 surpass throttle postition Q...
  214. In-cowl muffler for OS 91 FX
  215. Out Of Town Notice
  216. OS91Fx air bubbles in needle valve fuel line
  217. Glow plug reaches ??
  218. 91 fx air leaks
  219. OS1.40RX (first series) low end?
  220. Please read before posting...........
  221. OS 160 Shortening stock muffler
  222. The baffle - what's it for?
  223. cleaning .46 FX
  224. OS 1.6 FX Starting question
  225. OS .61 Hanno
  226. O.S. .91FX Lemon (Revisited)
  227. best prop for os bgx
  228. Problem with OS .61RF-ABC-P
  229. Problem with OS .61RF-ABC-P
  230. Parts available for older engines?
  231. Thread questions for carb and glow plug
  232. os 46 fx
  233. Re: os fs 120 sp
  234. OS 46FX Muffler
  235. OS Max .34 F question
  236. O.S. .91FX Lemon
  237. OS300 troubles
  238. O.S. 4-Stroke Headers
  239. 46Fx Warrenty Question
  240. SMOKE -1.60 FX any mufflers out there???
  241. NEW: Ask your O.S. engine questions directly here