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  1. 120 4cycle w/pump
  2. os40fx vs os fs52s
  3. OS 120 Surpass III w/ pump wont advance from idle
  4. .15cvx
  5. O.S. .28f w/2h carb. Why is the head......
  6. old os 120fs
  7. Amcross, somebody... questions about .46 FX break in ...
  8. Marine engine OS 91 VRM, who knows about existance ?
  9. os40LA quits
  10. OS 120 surpass w/ pump
  11. O.S. 61 SF with pump
  12. Flexible Exhaust Pipe with OS 120 surpass III?
  13. Part for OS FS-90 (non-surpass)
  14. OS RZV01B(p)
  15. 160 FX adjusting woes
  16. Pressure Regular on OS120 III with pump
  17. Initial L & H End Carb Settings for .46 SF ABC
  18. OS 10 LA Leaking fuel
  19. FS-70SII Loss of power
  20. O.s. Fs70s Plastic Part
  21. OS .46 V Rear Exhaust
  22. os 46fx back cover assembly??
  23. Os 140rx
  24. O.S. 61RF-P with os header & os tunepipe
  25. Collets and Flywheels for FS40-C
  26. Os .91 Fx
  27. OS 50 Surpass clikcs when turned over
  28. 61 FSR Circa 1975 OILS?
  29. What is the replacement engine for the Max 25 FP?
  30. OS 91 FX in UK
  31. .91 2 Stroke
  32. Back Plate Mounts
  33. head bolts
  34. Which is it?
  35. Identifying OS Max 61 SX-H Subtype
  36. glow plug for 46 fx
  37. OS engine part needed
  38. Factory carb settings on 46fx?
  39. OS Max 40 sr NEED PISTON RING
  40. Os 10 La
  41. Engine Dissassebly Guide
  42. OS FT 160 Carb
  43. Will the crank from my .12 CV work in my new .15 CV-X ??
  44. Old model fx 120 surpass W/ #12 pump
  45. Online source for OS Engine Parts?
  46. OS 46 FX Carb Won't Close Completely
  47. OS50 SX-H 5B carb
  48. Pump priming?
  49. Mid throttle loads up OS160fx
  50. os .28
  51. OS 61 FX needle valve/fuel inlet positioning
  52. Back (cover) plate of 160Fx
  53. Crankshaft Extension for the OS 52 four stroke
  54. .61 FX peeling cylinder
  55. OS Max-H 60 (Max H60) parts needed
  56. OS 46FX Liner problems
  57. FF-240 In need of Manual?
  58. OS FS 120S SP Supercharged
  59. Looking for info on this .20
  60. FS-120 III w/pump silencer
  61. Questions for OS 120 Surpass III
  62. FS 120 pump output
  63. old os 15 max idle prob.
  64. OS 46 FX torque Curve
  65. O.S. 61 max sf
  66. Quick ? on four strokes
  67. OS 120 Thrust
  68. Set Screws in the High Speed Needle
  69. Is it worth fixing an old OS20??
  70. Frustration with 91FX
  71. Need Tuning Help OS MAX CV-X .15
  72. OS 25LA cylinder
  73. what series os 120 surpass
  74. older os120 surpass w/pump
  75. Os 1.40rx ?
  76. 46FX and 32SX break-in : Manuals says 4 cycle them / AmCross says that's a mistake???
  77. OS FT120 exhaust pipes
  78. OS .52 4 stroke
  79. Pump for OS 1.60FX?
  80. Os La 46 Muffler Extention...help!!!!
  81. Os .10 Fp
  82. Metric threads
  83. dual plug head for 1.40 RX
  84. OS .91 FS valve spring collapsed
  85. How to tell if V engine is really DF +
  86. Old OS questions
  87. OS 46 FX Mounting orientation and exaust question
  88. will it fit
  89. FS91 II w/pump question.
  90. O.S. really needs to make a .75 2 Stroke
  91. engine questions?
  92. Os 48 Surpass
  93. Tank pressure with OS160FT
  94. Help with identification of old OS .25 engine
  95. bearings for OS 25FSR + 25F
  96. 13x8 Master Air Screw 3-blade prop for FS91 II
  97. Looking for OS 40SF ABC Specs
  98. OS .46 Idle Mixture
  99. O.s. 65 La
  100. Adapter for flex exhaust
  101. Os .91fx Abc???
  102. Questions 140rx
  103. OS FS 120 Non Surpass
  104. Relocating the crankcase breather on my OLD FS-40...
  105. OS SF 61 carb
  106. Os 10 Fp
  107. OS FT-160 twin
  108. os 160 tuned pipe
  109. OS 50SX-H Ring
  110. OS 1.40RX help
  111. OS .46FX not running well. Outside temp the problem?
  112. Does Slimline make Pitts Muffler W/Smoke for OS 160
  113. Os Max 40 Sr
  114. OS 90 / 91 FS bearing replacement proc.
  115. ? about OS 40LA
  116. OS91 4/c backfiring on each flip to start
  117. os 91 'c' spec heli engine
  118. os .35 help needed
  119. Service question
  120. Os 160
  121. Need Piston Ring for OS 160FX
  122. OS 25 quits
  123. .50 SX Ring engine
  124. FS 91 V FS 91 pumped
  125. Need help with fuel for O.S. 91 Surpass
  126. 46 FX Different pistons?
  127. OS 91 Surpass I
  128. is this OS 120 surpass I -sp running?
  129. Low end needle drift possible ?
  130. OS 91 4 stroke bearings.
  131. Os 140 Fi
  132. OS 91 4 Stroke Carb Settings
  133. Trying to find a rear bearing for 46fx...ARRRGH!!
  134. OS .90 FSR Specs/Manual
  135. OS 7L carb adjustment
  136. Clockwise engine
  137. OS .25fx funny noise
  138. O.s.91 4stroke
  139. Another 120 Question
  140. Futaba FP-T7UAP PCM/PPM
  141. OS 50 Reviews
  142. Original 120FS engine
  143. compression ratio for os 46 fx ?
  144. 61FX rpm on ground
  145. problems with my new os 70, 4 stroke
  146. 61?
  147. 91 FX Question
  148. FS-91SII-P Muffler?
  149. Os Ft 1.20
  150. frozen barrels on #21 carbs
  151. os .61fx modification
  152. OS 120 pumped won't run
  153. carburetor body
  154. FS-30 Surpass weight
  155. 46FX runnning a 3-Blade Prop
  156. OS .91-VR Ducted Fan
  157. Os Ft160
  158. O.S. 91fx
  159. O.S. 50 SX carb
  160. FS-120 Surpass II pumped
  161. OS 70 Broken valve spring
  162. Os 160
  163. Os .61fx
  164. OS warranty and fuel Q.
  165. OS Max .10 Starting
  166. Os .91 Fx
  167. disc. engine
  168. OS 91 FS w/pump
  169. OS 1.60 crankcase tap
  170. 120 surpass W/pump
  171. OS Carb on TT Pro 46
  172. OS 120 Surpass
  173. Cline and Associates Regulators
  174. OS 90 4 stroke engine
  175. Os 61 Rf-p
  176. Schneurle porting
  177. OS 90FS Manual
  178. OS .46SF parts
  179. OS 160 junk???
  180. OS Max 30
  181. 46 max idle
  182. New OS 46FX Peeling Question
  183. 40 LA Changes
  184. Surpass 70MKII Inverted
  185. Upside down?
  186. O.S. 26 Four Stroke
  187. Engine Spec
  188. max rpm for 61fx
  189. #21 Carbs
  190. Dirt Damage
  191. Leaks
  192. os 46 fx max HELP
  193. OS-52 four stroke
  194. OS 160FX Stock or Pitts Muffler
  195. Fx 160 in G202 GP
  196. Inverted OS 25 fx (4 engines, B-17)
  197. OS 120 Surpass II
  198. Os .35 FP--need a head gasket.
  199. Os 61 Sf
  200. Tower muffler for 46FX
  201. Os50
  202. Tank level/clunk for a .40 FP
  203. Ft-300
  204. Muffler for OS 160 fx
  205. Surpass 120 w/pump
  206. Pumped FS 70?
  207. 46 FX Exhaust
  208. Air Bleed Adjustment LA 46
  209. 1.6FX - NIB crank won't turn
  210. Submerged O.S. F.S. 52 Four Stroke
  211. OS 1.60FX power?
  212. Pumped .61SF fuel line connections
  213. FS 90 backfire and needle valve problems
  214. OS 160 fx port timing
  215. os fx .61, pitts problem
  216. os surpass 70
  217. Carb setting on 21RG
  218. OS 25 needs more grunt
  219. Super heated OS .91FX, AMC:Help!
  220. Ziroli B-25 (101) approx 35 lbs
  221. Os .91fx
  222. My OS 10 wont run right
  223. HELP! My engine won't run!
  224. os52 exhaust
  225. O.S 120 II pumped
  226. More RPM's
  227. FX 46 making me nutz
  228. 18x6W or 20x6 for 1.60 FX
  229. 40LA Muffler fasteners
  230. C/L to RC conversion
  231. OS 46 & 61 SF ring replacement
  232. OS 70 Surpass
  233. FS-91 Surpass
  234. What is the expected life of an FX 46?
  235. rebuilding
  236. OS FS-70 repair
  237. OS 32 F Helicopter
  238. OS .46fx help....
  239. Is there a new OS 91???
  240. What size is the exhaust thread on OS 91 Surpass
  241. Cost of estimate ?
  242. Should I not repair my os 46sf?
  243. Need help on OS-91 FS II (no pump)
  244. 60 fx cyl peeling
  245. OS 70 SZ no mid range mixture
  246. Instruction Manual 7m Carb.
  247. Gummed up engines
  248. O.S. 46 LA Question
  249. FS-120s III
  250. 46 fx quits

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