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  1. Os 1.40rx ?
  2. 46FX and 32SX break-in : Manuals says 4 cycle them / AmCross says that's a mistake???
  3. OS FT120 exhaust pipes
  4. OS .52 4 stroke
  5. Pump for OS 1.60FX?
  6. Os La 46 Muffler Extention...help!!!!
  7. Os .10 Fp
  8. Metric threads
  9. dual plug head for 1.40 RX
  10. OS .91 FS valve spring collapsed
  11. How to tell if V engine is really DF +
  12. Old OS questions
  13. OS 46 FX Mounting orientation and exaust question
  14. will it fit
  15. FS91 II w/pump question.
  16. O.S. really needs to make a .75 2 Stroke
  17. engine questions?
  18. Os 48 Surpass
  19. Tank pressure with OS160FT
  20. Help with identification of old OS .25 engine
  21. bearings for OS 25FSR + 25F
  22. 13x8 Master Air Screw 3-blade prop for FS91 II
  23. Looking for OS 40SF ABC Specs
  24. OS .46 Idle Mixture
  25. O.s. 65 La
  26. Adapter for flex exhaust
  27. Os .91fx Abc???
  28. Questions 140rx
  29. OS FS 120 Non Surpass
  30. Relocating the crankcase breather on my OLD FS-40...
  31. OS SF 61 carb
  32. Os 10 Fp
  33. OS FT-160 twin
  34. os 160 tuned pipe
  35. OS 50SX-H Ring
  36. OS 1.40RX help
  37. OS .46FX not running well. Outside temp the problem?
  38. Does Slimline make Pitts Muffler W/Smoke for OS 160
  39. Os Max 40 Sr
  40. OS 90 / 91 FS bearing replacement proc.
  41. ? about OS 40LA
  42. OS91 4/c backfiring on each flip to start
  43. os 91 'c' spec heli engine
  44. os .35 help needed
  45. Service question
  46. Os 160
  47. Need Piston Ring for OS 160FX
  48. OS 25 quits
  49. .50 SX Ring engine
  50. FS 91 V FS 91 pumped
  51. Need help with fuel for O.S. 91 Surpass
  52. 46 FX Different pistons?
  53. OS 91 Surpass I
  54. is this OS 120 surpass I -sp running?
  55. Low end needle drift possible ?
  56. OS 91 4 stroke bearings.
  57. Os 140 Fi
  58. OS 91 4 Stroke Carb Settings
  59. Trying to find a rear bearing for 46fx...ARRRGH!!
  60. OS .90 FSR Specs/Manual
  61. OS 7L carb adjustment
  62. Clockwise engine
  63. OS .25fx funny noise
  64. O.s.91 4stroke
  65. Another 120 Question
  66. Futaba FP-T7UAP PCM/PPM
  67. OS 50 Reviews
  68. Original 120FS engine
  69. compression ratio for os 46 fx ?
  70. 61FX rpm on ground
  71. problems with my new os 70, 4 stroke
  72. 61?
  73. 91 FX Question
  74. FS-91SII-P Muffler?
  75. Os Ft 1.20
  76. frozen barrels on #21 carbs
  77. os .61fx modification
  78. OS 120 pumped won't run
  79. carburetor body
  80. FS-30 Surpass weight
  81. 46FX runnning a 3-Blade Prop
  82. OS .91-VR Ducted Fan
  83. Os Ft160
  84. O.S. 91fx
  85. O.S. 50 SX carb
  86. FS-120 Surpass II pumped
  87. OS 70 Broken valve spring
  88. Os 160
  89. Os .61fx
  90. OS warranty and fuel Q.
  91. OS Max .10 Starting
  92. Os .91 Fx
  93. disc. engine
  94. OS 91 FS w/pump
  95. OS 1.60 crankcase tap
  96. 120 surpass W/pump
  97. OS Carb on TT Pro 46
  98. OS 120 Surpass
  99. Cline and Associates Regulators
  100. OS 90 4 stroke engine
  101. Os 61 Rf-p
  102. Schneurle porting
  103. OS 90FS Manual
  104. OS .46SF parts
  105. OS 160 junk???
  106. OS Max 30
  107. 46 max idle
  108. New OS 46FX Peeling Question
  109. 40 LA Changes
  110. Surpass 70MKII Inverted
  111. Upside down?
  112. O.S. 26 Four Stroke
  113. Engine Spec
  114. max rpm for 61fx
  115. #21 Carbs
  116. Dirt Damage
  117. Leaks
  118. os 46 fx max HELP
  119. OS-52 four stroke
  120. OS 160FX Stock or Pitts Muffler
  121. Fx 160 in G202 GP
  122. Inverted OS 25 fx (4 engines, B-17)
  123. OS 120 Surpass II
  124. Os .35 FP--need a head gasket.
  125. Os 61 Sf
  126. Tower muffler for 46FX
  127. Os50
  128. Tank level/clunk for a .40 FP
  129. Ft-300
  130. Muffler for OS 160 fx
  131. Surpass 120 w/pump
  132. Pumped FS 70?
  133. 46 FX Exhaust
  134. Air Bleed Adjustment LA 46
  135. 1.6FX - NIB crank won't turn
  136. Submerged O.S. F.S. 52 Four Stroke
  137. OS 1.60FX power?
  138. Pumped .61SF fuel line connections
  139. FS 90 backfire and needle valve problems
  140. OS 160 fx port timing
  141. os fx .61, pitts problem
  142. os surpass 70
  143. Carb setting on 21RG
  144. OS 25 needs more grunt
  145. Super heated OS .91FX, AMC:Help!
  146. Ziroli B-25 (101) approx 35 lbs
  147. Os .91fx
  148. My OS 10 wont run right
  149. HELP! My engine won't run!
  150. os52 exhaust
  151. O.S 120 II pumped
  152. More RPM's
  153. FX 46 making me nutz
  154. 18x6W or 20x6 for 1.60 FX
  155. 40LA Muffler fasteners
  156. C/L to RC conversion
  157. OS 46 & 61 SF ring replacement
  158. OS 70 Surpass
  159. FS-91 Surpass
  160. What is the expected life of an FX 46?
  161. rebuilding
  162. OS FS-70 repair
  163. OS 32 F Helicopter
  164. OS .46fx help....
  165. Is there a new OS 91???
  166. What size is the exhaust thread on OS 91 Surpass
  167. Cost of estimate ?
  168. Should I not repair my os 46sf?
  169. Need help on OS-91 FS II (no pump)
  170. 60 fx cyl peeling
  171. OS 70 SZ no mid range mixture
  172. Instruction Manual 7m Carb.
  173. Gummed up engines
  174. O.S. 46 LA Question
  175. FS-120s III
  176. 46 fx quits
  177. O.S. 1.6FX pressure tap-HELP!
  178. 46fx-h
  179. 46fx-h
  180. OS 160 FX setup
  181. .91 FX Prop selection
  182. Where is Ann Marie?????????????
  183. Fuel Pump
  184. OS 160 Twin exhaust extenders
  185. OS 46FX peeling
  186. Ring for 50SX?
  187. FS needle settings
  188. counter rotating engines
  189. 48 Surpass
  190. Os 30fs
  191. Pressure nipples
  192. OS 15 FP crank thread size
  193. Life Expectancy of the OS 50 SXH
  194. O.S. 1.6FX problem
  195. O.s. Engines Four Stroke
  196. Clattering and lost power in OS 70 FS
  197. Os 46 Fx
  198. O.S BGX performance curves
  199. .46FX rich midrange
  200. fuel for the RX140
  201. Idle mixture adjust for an older OS 1.08
  202. FT- 160 Engine mount
  203. OS FP35 - Old and rusty
  204. OS 32 Mounting hole blocked by remote needle valve?
  205. os 90 fs
  206. OS 46 only starts with Starter
  207. Os .10 Fsr
  208. Os 46 Fx
  209. OS140RX and muffler
  210. OS 46FX - starts backwards
  211. Fs120 Surpass wiyh pump
  212. OS91 Fan conversion
  213. Os 1.6fi
  214. OS 91FX Cutts out and flames out!
  215. Blubbery .50 SX
  216. Os Max 60sr
  217. 1.40RX eating bearings?
  218. lowest displacement O.S engine
  219. O.S. .61 FX help
  220. OS 15 LA liner problems/ what to do?
  221. Fuel Foaming
  222. .91FX Muffler vs .61FX Muffler
  223. .32 Sx
  224. OS 61 Fx substitute muffler
  225. Need answers from the pro's "OS Max 40 SR"
  226. OS 70 Heli engine problem
  227. OS 48fs broke valve cover, any comments?
  228. OS 120 Surpass Non Pump add pump?
  229. OS 70 surpass bogging at full throttle.
  230. OS 140RX pump problems? (long)
  231. OS Drive washer puller
  232. OS 52 low end mixture
  233. os max-H 40
  234. FX46 Cylinder Peeling
  235. 91 FX on U-Can-Do 3D
  236. Replacement Parts for TH engines
  237. I have a question
  238. After Run Oil
  239. Another 1.60/Bisson Pitts Muffler question
  240. Need AM Cross' Help with parts
  241. After run care (OS46)
  242. Does OS engines have warranty?
  243. Please Close Thread.
  244. OS 70 SZ Eng
  245. New OS 50SX missing gasket and leaking
  246. 91 FX quits
  247. Fs 61
  248. 50 SX Running Problem
  249. Os 91 Fx
  250. 50 exhaust baffle

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