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  1. 40 VF
  2. 0S .46SF - I want more power
  3. 91 SX-H timing info needed
  4. OS max 91 four stroke...no power or compression
  5. OS 1.40 prop
  6. .61 FX wont Idle, please help
  7. Gasket
  8. Setting high speed needle valve!
  9. Probs with .40fx
  10. 60J Carb
  11. os 120 surpass II w/pump
  12. OS50 XXrich@1/4 stick
  13. Os .15 Fp
  14. When to rebiuld?
  15. OS .10 Head and Back Plate Screw Sizes
  16. Need a new crank for and O.S.
  17. Removing Bearings and Crankshaft from 40 SF ABC
  18. os 91fs
  19. Os 15
  20. OS Max FP .40 Manual
  21. Os 50 Sxh
  22. Looking for manual
  23. OS 120 Carb
  24. Need OS part number...
  25. OS-30 weight spec is wrong!
  26. O.S. Surpass 30
  27. OS91 C-Spec
  28. 140RX spitting bearing!!!
  29. OS Engine Specs???
  30. fs 60 open rocker
  31. Engine Purchase Questions
  32. O.S. Buggy Engine, Can I convert to Pull start?
  33. Should I replace the case on a os 61?
  34. OS FSR/SF Parts Interchange
  35. OS 140 Rx storage
  36. OS 70 leaking???
  37. .15 Fp
  38. OS 52 4 cyl.
  39. os40la
  40. O.s. 61 Sf Prop Nut Size
  41. Os 91 Fs
  42. Os21 Vz-r
  43. os FX silinder pilling ,is this still hapening Cause i have one that did it with only
  44. OS Max 1.2 FS Surpass II pumped
  45. 120 4cycle w/pump
  46. os40fx vs os fs52s
  47. OS 120 Surpass III w/ pump wont advance from idle
  48. .15cvx
  49. O.S. .28f w/2h carb. Why is the head......
  50. old os 120fs
  51. Amcross, somebody... questions about .46 FX break in ...
  52. Marine engine OS 91 VRM, who knows about existance ?
  53. os40LA quits
  54. OS 120 surpass w/ pump
  55. O.S. 61 SF with pump
  56. Flexible Exhaust Pipe with OS 120 surpass III?
  57. Part for OS FS-90 (non-surpass)
  58. OS RZV01B(p)
  59. 160 FX adjusting woes
  60. Pressure Regular on OS120 III with pump
  61. Initial L & H End Carb Settings for .46 SF ABC
  62. OS 10 LA Leaking fuel
  63. FS-70SII Loss of power
  64. O.s. Fs70s Plastic Part
  65. OS .46 V Rear Exhaust
  66. os 46fx back cover assembly??
  67. Os 140rx
  68. O.S. 61RF-P with os header & os tunepipe
  69. Collets and Flywheels for FS40-C
  70. Os .91 Fx
  71. OS 50 Surpass clikcs when turned over
  72. 61 FSR Circa 1975 OILS?
  73. What is the replacement engine for the Max 25 FP?
  74. OS 91 FX in UK
  75. .91 2 Stroke
  76. Back Plate Mounts
  77. head bolts
  78. Which is it?
  79. Identifying OS Max 61 SX-H Subtype
  80. glow plug for 46 fx
  81. OS engine part needed
  82. Factory carb settings on 46fx?
  83. OS Max 40 sr NEED PISTON RING
  84. Os 10 La
  85. Engine Dissassebly Guide
  86. OS FT 160 Carb
  87. Will the crank from my .12 CV work in my new .15 CV-X ??
  88. Old model fx 120 surpass W/ #12 pump
  89. Online source for OS Engine Parts?
  90. OS 46 FX Carb Won't Close Completely
  91. OS50 SX-H 5B carb
  92. Pump priming?
  93. Mid throttle loads up OS160fx
  94. os .28
  95. OS 61 FX needle valve/fuel inlet positioning
  96. Back (cover) plate of 160Fx
  97. Crankshaft Extension for the OS 52 four stroke
  98. .61 FX peeling cylinder
  99. OS Max-H 60 (Max H60) parts needed
  100. OS 46FX Liner problems
  101. FF-240 In need of Manual?
  102. OS FS 120S SP Supercharged
  103. Looking for info on this .20
  104. FS-120 III w/pump silencer
  105. Questions for OS 120 Surpass III
  106. FS 120 pump output
  107. old os 15 max idle prob.
  108. OS 46 FX torque Curve
  109. O.S. 61 max sf
  110. Quick ? on four strokes
  111. OS 120 Thrust
  112. Set Screws in the High Speed Needle
  113. Is it worth fixing an old OS20??
  114. Frustration with 91FX
  115. Need Tuning Help OS MAX CV-X .15
  116. OS 25LA cylinder
  117. what series os 120 surpass
  118. older os120 surpass w/pump
  119. Os 1.40rx ?
  120. 46FX and 32SX break-in : Manuals says 4 cycle them / AmCross says that's a mistake???
  121. OS FT120 exhaust pipes
  122. OS .52 4 stroke
  123. Pump for OS 1.60FX?
  124. Os La 46 Muffler Extention...help!!!!
  125. Os .10 Fp
  126. Metric threads
  127. dual plug head for 1.40 RX
  128. OS .91 FS valve spring collapsed
  129. How to tell if V engine is really DF +
  130. Old OS questions
  131. OS 46 FX Mounting orientation and exaust question
  132. will it fit
  133. FS91 II w/pump question.
  134. O.S. really needs to make a .75 2 Stroke
  135. engine questions?
  136. Os 48 Surpass
  137. Tank pressure with OS160FT
  138. Help with identification of old OS .25 engine
  139. bearings for OS 25FSR + 25F
  140. 13x8 Master Air Screw 3-blade prop for FS91 II
  141. Looking for OS 40SF ABC Specs
  142. OS .46 Idle Mixture
  143. O.s. 65 La
  144. Adapter for flex exhaust
  145. Os .91fx Abc???
  146. Questions 140rx
  147. OS FS 120 Non Surpass
  148. Relocating the crankcase breather on my OLD FS-40...
  149. OS SF 61 carb
  150. Os 10 Fp
  151. OS FT-160 twin
  152. os 160 tuned pipe
  153. OS 50SX-H Ring
  154. OS 1.40RX help
  155. OS .46FX not running well. Outside temp the problem?
  156. Does Slimline make Pitts Muffler W/Smoke for OS 160
  157. Os Max 40 Sr
  158. OS 90 / 91 FS bearing replacement proc.
  159. ? about OS 40LA
  160. OS91 4/c backfiring on each flip to start
  161. os 91 'c' spec heli engine
  162. os .35 help needed
  163. Service question
  164. Os 160
  165. Need Piston Ring for OS 160FX
  166. OS 25 quits
  167. .50 SX Ring engine
  168. FS 91 V FS 91 pumped
  169. Need help with fuel for O.S. 91 Surpass
  170. 46 FX Different pistons?
  171. OS 91 Surpass I
  172. is this OS 120 surpass I -sp running?
  173. Low end needle drift possible ?
  174. OS 91 4 stroke bearings.
  175. Os 140 Fi
  176. OS 91 4 Stroke Carb Settings
  177. Trying to find a rear bearing for 46fx...ARRRGH!!
  178. OS .90 FSR Specs/Manual
  179. OS 7L carb adjustment
  180. Clockwise engine
  181. OS .25fx funny noise
  182. O.s.91 4stroke
  183. Another 120 Question
  184. Futaba FP-T7UAP PCM/PPM
  185. OS 50 Reviews
  186. Original 120FS engine
  187. compression ratio for os 46 fx ?
  188. 61FX rpm on ground
  189. problems with my new os 70, 4 stroke
  190. 61?
  191. 91 FX Question
  192. FS-91SII-P Muffler?
  193. Os Ft 1.20
  194. frozen barrels on #21 carbs
  195. os .61fx modification
  196. OS 120 pumped won't run
  197. carburetor body
  198. FS-30 Surpass weight
  199. 46FX runnning a 3-Blade Prop
  200. OS .91-VR Ducted Fan
  201. Os Ft160
  202. O.S. 91fx
  203. O.S. 50 SX carb
  204. FS-120 Surpass II pumped
  205. OS 70 Broken valve spring
  206. Os 160
  207. Os .61fx
  208. OS warranty and fuel Q.
  209. OS Max .10 Starting
  210. Os .91 Fx
  211. disc. engine
  212. OS 91 FS w/pump
  213. OS 1.60 crankcase tap
  214. 120 surpass W/pump
  215. OS Carb on TT Pro 46
  216. OS 120 Surpass
  217. Cline and Associates Regulators
  218. OS 90 4 stroke engine
  219. Os 61 Rf-p
  220. Schneurle porting
  221. OS 90FS Manual
  222. OS .46SF parts
  223. OS 160 junk???
  224. OS Max 30
  225. 46 max idle
  226. New OS 46FX Peeling Question
  227. 40 LA Changes
  228. Surpass 70MKII Inverted
  229. Upside down?
  230. O.S. 26 Four Stroke
  231. Engine Spec
  232. max rpm for 61fx
  233. #21 Carbs
  234. Dirt Damage
  235. Leaks
  236. os 46 fx max HELP
  237. OS-52 four stroke
  238. OS 160FX Stock or Pitts Muffler
  239. Fx 160 in G202 GP
  240. Inverted OS 25 fx (4 engines, B-17)
  241. OS 120 Surpass II
  242. Os .35 FP--need a head gasket.
  243. Os 61 Sf
  244. Tower muffler for 46FX
  245. Os50
  246. Tank level/clunk for a .40 FP
  247. Ft-300
  248. Muffler for OS 160 fx
  249. Surpass 120 w/pump
  250. Pumped FS 70?