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  1. OS 52 4 cyl.
  2. os40la
  3. O.s. 61 Sf Prop Nut Size
  4. Os 91 Fs
  5. Os21 Vz-r
  6. os FX silinder pilling ,is this still hapening Cause i have one that did it with only
  7. OS Max 1.2 FS Surpass II pumped
  8. 120 4cycle w/pump
  9. os40fx vs os fs52s
  10. OS 120 Surpass III w/ pump wont advance from idle
  11. .15cvx
  12. O.S. .28f w/2h carb. Why is the head......
  13. old os 120fs
  14. Amcross, somebody... questions about .46 FX break in ...
  15. Marine engine OS 91 VRM, who knows about existance ?
  16. os40LA quits
  17. OS 120 surpass w/ pump
  18. O.S. 61 SF with pump
  19. Flexible Exhaust Pipe with OS 120 surpass III?
  20. Part for OS FS-90 (non-surpass)
  21. OS RZV01B(p)
  22. 160 FX adjusting woes
  23. Pressure Regular on OS120 III with pump
  24. Initial L & H End Carb Settings for .46 SF ABC
  25. OS 10 LA Leaking fuel
  26. FS-70SII Loss of power
  27. O.s. Fs70s Plastic Part
  28. OS .46 V Rear Exhaust
  29. os 46fx back cover assembly??
  30. Os 140rx
  31. O.S. 61RF-P with os header & os tunepipe
  32. Collets and Flywheels for FS40-C
  33. Os .91 Fx
  34. OS 50 Surpass clikcs when turned over
  35. 61 FSR Circa 1975 OILS?
  36. What is the replacement engine for the Max 25 FP?
  37. OS 91 FX in UK
  38. .91 2 Stroke
  39. Back Plate Mounts
  40. head bolts
  41. Which is it?
  42. Identifying OS Max 61 SX-H Subtype
  43. glow plug for 46 fx
  44. OS engine part needed
  45. Factory carb settings on 46fx?
  46. OS Max 40 sr NEED PISTON RING
  47. Os 10 La
  48. Engine Dissassebly Guide
  49. OS FT 160 Carb
  50. Will the crank from my .12 CV work in my new .15 CV-X ??
  51. Old model fx 120 surpass W/ #12 pump
  52. Online source for OS Engine Parts?
  53. OS 46 FX Carb Won't Close Completely
  54. OS50 SX-H 5B carb
  55. Pump priming?
  56. Mid throttle loads up OS160fx
  57. os .28
  58. OS 61 FX needle valve/fuel inlet positioning
  59. Back (cover) plate of 160Fx
  60. Crankshaft Extension for the OS 52 four stroke
  61. .61 FX peeling cylinder
  62. OS Max-H 60 (Max H60) parts needed
  63. OS 46FX Liner problems
  64. FF-240 In need of Manual?
  65. OS FS 120S SP Supercharged
  66. Looking for info on this .20
  67. FS-120 III w/pump silencer
  68. Questions for OS 120 Surpass III
  69. FS 120 pump output
  70. old os 15 max idle prob.
  71. OS 46 FX torque Curve
  72. O.S. 61 max sf
  73. Quick ? on four strokes
  74. OS 120 Thrust
  75. Set Screws in the High Speed Needle
  76. Is it worth fixing an old OS20??
  77. Frustration with 91FX
  78. Need Tuning Help OS MAX CV-X .15
  79. OS 25LA cylinder
  80. what series os 120 surpass
  81. older os120 surpass w/pump
  82. Os 1.40rx ?
  83. 46FX and 32SX break-in : Manuals says 4 cycle them / AmCross says that's a mistake???
  84. OS FT120 exhaust pipes
  85. OS .52 4 stroke
  86. Pump for OS 1.60FX?
  87. Os La 46 Muffler Extention...help!!!!
  88. Os .10 Fp
  89. Metric threads
  90. dual plug head for 1.40 RX
  91. OS .91 FS valve spring collapsed
  92. How to tell if V engine is really DF +
  93. Old OS questions
  94. OS 46 FX Mounting orientation and exaust question
  95. will it fit
  96. FS91 II w/pump question.
  97. O.S. really needs to make a .75 2 Stroke
  98. engine questions?
  99. Os 48 Surpass
  100. Tank pressure with OS160FT
  101. Help with identification of old OS .25 engine
  102. bearings for OS 25FSR + 25F
  103. 13x8 Master Air Screw 3-blade prop for FS91 II
  104. Looking for OS 40SF ABC Specs
  105. OS .46 Idle Mixture
  106. O.s. 65 La
  107. Adapter for flex exhaust
  108. Os .91fx Abc???
  109. Questions 140rx
  110. OS FS 120 Non Surpass
  111. Relocating the crankcase breather on my OLD FS-40...
  112. OS SF 61 carb
  113. Os 10 Fp
  114. OS FT-160 twin
  115. os 160 tuned pipe
  116. OS 50SX-H Ring
  117. OS 1.40RX help
  118. OS .46FX not running well. Outside temp the problem?
  119. Does Slimline make Pitts Muffler W/Smoke for OS 160
  120. Os Max 40 Sr
  121. OS 90 / 91 FS bearing replacement proc.
  122. ? about OS 40LA
  123. OS91 4/c backfiring on each flip to start
  124. os 91 'c' spec heli engine
  125. os .35 help needed
  126. Service question
  127. Os 160
  128. Need Piston Ring for OS 160FX
  129. OS 25 quits
  130. .50 SX Ring engine
  131. FS 91 V FS 91 pumped
  132. Need help with fuel for O.S. 91 Surpass
  133. 46 FX Different pistons?
  134. OS 91 Surpass I
  135. is this OS 120 surpass I -sp running?
  136. Low end needle drift possible ?
  137. OS 91 4 stroke bearings.
  138. Os 140 Fi
  139. OS 91 4 Stroke Carb Settings
  140. Trying to find a rear bearing for 46fx...ARRRGH!!
  141. OS .90 FSR Specs/Manual
  142. OS 7L carb adjustment
  143. Clockwise engine
  144. OS .25fx funny noise
  145. O.s.91 4stroke
  146. Another 120 Question
  147. Futaba FP-T7UAP PCM/PPM
  148. OS 50 Reviews
  149. Original 120FS engine
  150. compression ratio for os 46 fx ?
  151. 61FX rpm on ground
  152. problems with my new os 70, 4 stroke
  153. 61?
  154. 91 FX Question
  155. FS-91SII-P Muffler?
  156. Os Ft 1.20
  157. frozen barrels on #21 carbs
  158. os .61fx modification
  159. OS 120 pumped won't run
  160. carburetor body
  161. FS-30 Surpass weight
  162. 46FX runnning a 3-Blade Prop
  163. OS .91-VR Ducted Fan
  164. Os Ft160
  165. O.S. 91fx
  166. O.S. 50 SX carb
  167. FS-120 Surpass II pumped
  168. OS 70 Broken valve spring
  169. Os 160
  170. Os .61fx
  171. OS warranty and fuel Q.
  172. OS Max .10 Starting
  173. Os .91 Fx
  174. disc. engine
  175. OS 91 FS w/pump
  176. OS 1.60 crankcase tap
  177. 120 surpass W/pump
  178. OS Carb on TT Pro 46
  179. OS 120 Surpass
  180. Cline and Associates Regulators
  181. OS 90 4 stroke engine
  182. Os 61 Rf-p
  183. Schneurle porting
  184. OS 90FS Manual
  185. OS .46SF parts
  186. OS 160 junk???
  187. OS Max 30
  188. 46 max idle
  189. New OS 46FX Peeling Question
  190. 40 LA Changes
  191. Surpass 70MKII Inverted
  192. Upside down?
  193. O.S. 26 Four Stroke
  194. Engine Spec
  195. max rpm for 61fx
  196. #21 Carbs
  197. Dirt Damage
  198. Leaks
  199. os 46 fx max HELP
  200. OS-52 four stroke
  201. OS 160FX Stock or Pitts Muffler
  202. Fx 160 in G202 GP
  203. Inverted OS 25 fx (4 engines, B-17)
  204. OS 120 Surpass II
  205. Os .35 FP--need a head gasket.
  206. Os 61 Sf
  207. Tower muffler for 46FX
  208. Os50
  209. Tank level/clunk for a .40 FP
  210. Ft-300
  211. Muffler for OS 160 fx
  212. Surpass 120 w/pump
  213. Pumped FS 70?
  214. 46 FX Exhaust
  215. Air Bleed Adjustment LA 46
  216. 1.6FX - NIB crank won't turn
  217. Submerged O.S. F.S. 52 Four Stroke
  218. OS 1.60FX power?
  219. Pumped .61SF fuel line connections
  220. FS 90 backfire and needle valve problems
  221. OS 160 fx port timing
  222. os fx .61, pitts problem
  223. os surpass 70
  224. Carb setting on 21RG
  225. OS 25 needs more grunt
  226. Super heated OS .91FX, AMC:Help!
  227. Ziroli B-25 (101) approx 35 lbs
  228. Os .91fx
  229. My OS 10 wont run right
  230. HELP! My engine won't run!
  231. os52 exhaust
  232. O.S 120 II pumped
  233. More RPM's
  234. FX 46 making me nutz
  235. 18x6W or 20x6 for 1.60 FX
  236. 40LA Muffler fasteners
  237. C/L to RC conversion
  238. OS 46 & 61 SF ring replacement
  239. OS 70 Surpass
  240. FS-91 Surpass
  241. What is the expected life of an FX 46?
  242. rebuilding
  243. OS FS-70 repair
  244. OS 32 F Helicopter
  245. OS .46fx help....
  246. Is there a new OS 91???
  247. What size is the exhaust thread on OS 91 Surpass
  248. Cost of estimate ?
  249. Should I not repair my os 46sf?
  250. Need help on OS-91 FS II (no pump)

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