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  1. Questions for OS 120 Surpass III
  2. FS 120 pump output
  3. old os 15 max idle prob.
  4. OS 46 FX torque Curve
  5. O.S. 61 max sf
  6. Quick ? on four strokes
  7. OS 120 Thrust
  8. Set Screws in the High Speed Needle
  9. Is it worth fixing an old OS20??
  10. Frustration with 91FX
  11. Need Tuning Help OS MAX CV-X .15
  12. OS 25LA cylinder
  13. what series os 120 surpass
  14. older os120 surpass w/pump
  15. Os 1.40rx ?
  16. 46FX and 32SX break-in : Manuals says 4 cycle them / AmCross says that's a mistake???
  17. OS FT120 exhaust pipes
  18. OS .52 4 stroke
  19. Pump for OS 1.60FX?
  20. Os La 46 Muffler Extention...help!!!!
  21. Os .10 Fp
  22. Metric threads
  23. dual plug head for 1.40 RX
  24. OS .91 FS valve spring collapsed
  25. How to tell if V engine is really DF +
  26. Old OS questions
  27. OS 46 FX Mounting orientation and exaust question
  28. will it fit
  29. FS91 II w/pump question.
  30. O.S. really needs to make a .75 2 Stroke
  31. engine questions?
  32. Os 48 Surpass
  33. Tank pressure with OS160FT
  34. Help with identification of old OS .25 engine
  35. bearings for OS 25FSR + 25F
  36. 13x8 Master Air Screw 3-blade prop for FS91 II
  37. Looking for OS 40SF ABC Specs
  38. OS .46 Idle Mixture
  39. O.s. 65 La
  40. Adapter for flex exhaust
  41. Os .91fx Abc???
  42. Questions 140rx
  43. OS FS 120 Non Surpass
  44. Relocating the crankcase breather on my OLD FS-40...
  45. OS SF 61 carb
  46. Os 10 Fp
  47. OS FT-160 twin
  48. os 160 tuned pipe
  49. OS 50SX-H Ring
  50. OS 1.40RX help
  51. OS .46FX not running well. Outside temp the problem?
  52. Does Slimline make Pitts Muffler W/Smoke for OS 160
  53. Os Max 40 Sr
  54. OS 90 / 91 FS bearing replacement proc.
  55. ? about OS 40LA
  56. OS91 4/c backfiring on each flip to start
  57. os 91 'c' spec heli engine
  58. os .35 help needed
  59. Service question
  60. Os 160
  61. Need Piston Ring for OS 160FX
  62. OS 25 quits
  63. .50 SX Ring engine
  64. FS 91 V FS 91 pumped
  65. Need help with fuel for O.S. 91 Surpass
  66. 46 FX Different pistons?
  67. OS 91 Surpass I
  68. is this OS 120 surpass I -sp running?
  69. Low end needle drift possible ?
  70. OS 91 4 stroke bearings.
  71. Os 140 Fi
  72. OS 91 4 Stroke Carb Settings
  73. Trying to find a rear bearing for 46fx...ARRRGH!!
  74. OS .90 FSR Specs/Manual
  75. OS 7L carb adjustment
  76. Clockwise engine
  77. OS .25fx funny noise
  78. O.s.91 4stroke
  79. Another 120 Question
  80. Futaba FP-T7UAP PCM/PPM
  81. OS 50 Reviews
  82. Original 120FS engine
  83. compression ratio for os 46 fx ?
  84. 61FX rpm on ground
  85. problems with my new os 70, 4 stroke
  86. 61?
  87. 91 FX Question
  88. FS-91SII-P Muffler?
  89. Os Ft 1.20
  90. frozen barrels on #21 carbs
  91. os .61fx modification
  92. OS 120 pumped won't run
  93. carburetor body
  94. FS-30 Surpass weight
  95. 46FX runnning a 3-Blade Prop
  96. OS .91-VR Ducted Fan
  97. Os Ft160
  98. O.S. 91fx
  99. O.S. 50 SX carb
  100. FS-120 Surpass II pumped
  101. OS 70 Broken valve spring
  102. Os 160
  103. Os .61fx
  104. OS warranty and fuel Q.
  105. OS Max .10 Starting
  106. Os .91 Fx
  107. disc. engine
  108. OS 91 FS w/pump
  109. OS 1.60 crankcase tap
  110. 120 surpass W/pump
  111. OS Carb on TT Pro 46
  112. OS 120 Surpass
  113. Cline and Associates Regulators
  114. OS 90 4 stroke engine
  115. Os 61 Rf-p
  116. Schneurle porting
  117. OS 90FS Manual
  118. OS .46SF parts
  119. OS 160 junk???
  120. OS Max 30
  121. 46 max idle
  122. New OS 46FX Peeling Question
  123. 40 LA Changes
  124. Surpass 70MKII Inverted
  125. Upside down?
  126. O.S. 26 Four Stroke
  127. Engine Spec
  128. max rpm for 61fx
  129. #21 Carbs
  130. Dirt Damage
  131. Leaks
  132. os 46 fx max HELP
  133. OS-52 four stroke
  134. OS 160FX Stock or Pitts Muffler
  135. Fx 160 in G202 GP
  136. Inverted OS 25 fx (4 engines, B-17)
  137. OS 120 Surpass II
  138. Os .35 FP--need a head gasket.
  139. Os 61 Sf
  140. Tower muffler for 46FX
  141. Os50
  142. Tank level/clunk for a .40 FP
  143. Ft-300
  144. Muffler for OS 160 fx
  145. Surpass 120 w/pump
  146. Pumped FS 70?
  147. 46 FX Exhaust
  148. Air Bleed Adjustment LA 46
  149. 1.6FX - NIB crank won't turn
  150. Submerged O.S. F.S. 52 Four Stroke
  151. OS 1.60FX power?
  152. Pumped .61SF fuel line connections
  153. FS 90 backfire and needle valve problems
  154. OS 160 fx port timing
  155. os fx .61, pitts problem
  156. os surpass 70
  157. Carb setting on 21RG
  158. OS 25 needs more grunt
  159. Super heated OS .91FX, AMC:Help!
  160. Ziroli B-25 (101) approx 35 lbs
  161. Os .91fx
  162. My OS 10 wont run right
  163. HELP! My engine won't run!
  164. os52 exhaust
  165. O.S 120 II pumped
  166. More RPM's
  167. FX 46 making me nutz
  168. 18x6W or 20x6 for 1.60 FX
  169. 40LA Muffler fasteners
  170. C/L to RC conversion
  171. OS 46 & 61 SF ring replacement
  172. OS 70 Surpass
  173. FS-91 Surpass
  174. What is the expected life of an FX 46?
  175. rebuilding
  176. OS FS-70 repair
  177. OS 32 F Helicopter
  178. OS .46fx help....
  179. Is there a new OS 91???
  180. What size is the exhaust thread on OS 91 Surpass
  181. Cost of estimate ?
  182. Should I not repair my os 46sf?
  183. Need help on OS-91 FS II (no pump)
  184. 60 fx cyl peeling
  185. OS 70 SZ no mid range mixture
  186. Instruction Manual 7m Carb.
  187. Gummed up engines
  188. O.S. 46 LA Question
  189. FS-120s III
  190. 46 fx quits
  191. O.S. 1.6FX pressure tap-HELP!
  192. 46fx-h
  193. 46fx-h
  194. OS 160 FX setup
  195. .91 FX Prop selection
  196. Where is Ann Marie?????????????
  197. Fuel Pump
  198. OS 160 Twin exhaust extenders
  199. OS 46FX peeling
  200. Ring for 50SX?
  201. FS needle settings
  202. counter rotating engines
  203. 48 Surpass
  204. Os 30fs
  205. Pressure nipples
  206. OS 15 FP crank thread size
  207. Life Expectancy of the OS 50 SXH
  208. O.S. 1.6FX problem
  209. O.s. Engines Four Stroke
  210. Clattering and lost power in OS 70 FS
  211. Os 46 Fx
  212. O.S BGX performance curves
  213. .46FX rich midrange
  214. fuel for the RX140
  215. Idle mixture adjust for an older OS 1.08
  216. FT- 160 Engine mount
  217. OS FP35 - Old and rusty
  218. OS 32 Mounting hole blocked by remote needle valve?
  219. os 90 fs
  220. OS 46 only starts with Starter
  221. Os .10 Fsr
  222. Os 46 Fx
  223. OS140RX and muffler
  224. OS 46FX - starts backwards
  225. Fs120 Surpass wiyh pump
  226. OS91 Fan conversion
  227. Os 1.6fi
  228. OS 91FX Cutts out and flames out!
  229. Blubbery .50 SX
  230. Os Max 60sr
  231. 1.40RX eating bearings?
  232. lowest displacement O.S engine
  233. O.S. .61 FX help
  234. OS 15 LA liner problems/ what to do?
  235. Fuel Foaming
  236. .91FX Muffler vs .61FX Muffler
  237. .32 Sx
  238. OS 61 Fx substitute muffler
  239. Need answers from the pro's "OS Max 40 SR"
  240. OS 70 Heli engine problem
  241. OS 48fs broke valve cover, any comments?
  242. OS 120 Surpass Non Pump add pump?
  243. OS 70 surpass bogging at full throttle.
  244. OS 140RX pump problems? (long)
  245. OS Drive washer puller
  246. OS 52 low end mixture
  247. os max-H 40
  248. FX46 Cylinder Peeling
  249. 91 FX on U-Can-Do 3D
  250. Replacement Parts for TH engines

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