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  1. Looking for manual
  2. OS 120 Carb
  3. Need OS part number...
  4. OS-30 weight spec is wrong!
  5. O.S. Surpass 30
  6. OS91 C-Spec
  7. 140RX spitting bearing!!!
  8. OS Engine Specs???
  9. fs 60 open rocker
  10. Engine Purchase Questions
  11. O.S. Buggy Engine, Can I convert to Pull start?
  12. Should I replace the case on a os 61?
  13. OS FSR/SF Parts Interchange
  14. OS 140 Rx storage
  15. OS 70 leaking???
  16. .15 Fp
  17. OS 52 4 cyl.
  18. os40la
  19. O.s. 61 Sf Prop Nut Size
  20. Os 91 Fs
  21. Os21 Vz-r
  22. os FX silinder pilling ,is this still hapening Cause i have one that did it with only
  23. OS Max 1.2 FS Surpass II pumped
  24. 120 4cycle w/pump
  25. os40fx vs os fs52s
  26. OS 120 Surpass III w/ pump wont advance from idle
  27. .15cvx
  28. O.S. .28f w/2h carb. Why is the head......
  29. old os 120fs
  30. Amcross, somebody... questions about .46 FX break in ...
  31. Marine engine OS 91 VRM, who knows about existance ?
  32. os40LA quits
  33. OS 120 surpass w/ pump
  34. O.S. 61 SF with pump
  35. Flexible Exhaust Pipe with OS 120 surpass III?
  36. Part for OS FS-90 (non-surpass)
  37. OS RZV01B(p)
  38. 160 FX adjusting woes
  39. Pressure Regular on OS120 III with pump
  40. Initial L & H End Carb Settings for .46 SF ABC
  41. OS 10 LA Leaking fuel
  42. FS-70SII Loss of power
  43. O.s. Fs70s Plastic Part
  44. OS .46 V Rear Exhaust
  45. os 46fx back cover assembly??
  46. Os 140rx
  47. O.S. 61RF-P with os header & os tunepipe
  48. Collets and Flywheels for FS40-C
  49. Os .91 Fx
  50. OS 50 Surpass clikcs when turned over
  51. 61 FSR Circa 1975 OILS?
  52. What is the replacement engine for the Max 25 FP?
  53. OS 91 FX in UK
  54. .91 2 Stroke
  55. Back Plate Mounts
  56. head bolts
  57. Which is it?
  58. Identifying OS Max 61 SX-H Subtype
  59. glow plug for 46 fx
  60. OS engine part needed
  61. Factory carb settings on 46fx?
  62. OS Max 40 sr NEED PISTON RING
  63. Os 10 La
  64. Engine Dissassebly Guide
  65. OS FT 160 Carb
  66. Will the crank from my .12 CV work in my new .15 CV-X ??
  67. Old model fx 120 surpass W/ #12 pump
  68. Online source for OS Engine Parts?
  69. OS 46 FX Carb Won't Close Completely
  70. OS50 SX-H 5B carb
  71. Pump priming?
  72. Mid throttle loads up OS160fx
  73. os .28
  74. OS 61 FX needle valve/fuel inlet positioning
  75. Back (cover) plate of 160Fx
  76. Crankshaft Extension for the OS 52 four stroke
  77. .61 FX peeling cylinder
  78. OS Max-H 60 (Max H60) parts needed
  79. OS 46FX Liner problems
  80. FF-240 In need of Manual?
  81. OS FS 120S SP Supercharged
  82. Looking for info on this .20
  83. FS-120 III w/pump silencer
  84. Questions for OS 120 Surpass III
  85. FS 120 pump output
  86. old os 15 max idle prob.
  87. OS 46 FX torque Curve
  88. O.S. 61 max sf
  89. Quick ? on four strokes
  90. OS 120 Thrust
  91. Set Screws in the High Speed Needle
  92. Is it worth fixing an old OS20??
  93. Frustration with 91FX
  94. Need Tuning Help OS MAX CV-X .15
  95. OS 25LA cylinder
  96. what series os 120 surpass
  97. older os120 surpass w/pump
  98. Os 1.40rx ?
  99. 46FX and 32SX break-in : Manuals says 4 cycle them / AmCross says that's a mistake???
  100. OS FT120 exhaust pipes
  101. OS .52 4 stroke
  102. Pump for OS 1.60FX?
  103. Os La 46 Muffler Extention...help!!!!
  104. Os .10 Fp
  105. Metric threads
  106. dual plug head for 1.40 RX
  107. OS .91 FS valve spring collapsed
  108. How to tell if V engine is really DF +
  109. Old OS questions
  110. OS 46 FX Mounting orientation and exaust question
  111. will it fit
  112. FS91 II w/pump question.
  113. O.S. really needs to make a .75 2 Stroke
  114. engine questions?
  115. Os 48 Surpass
  116. Tank pressure with OS160FT
  117. Help with identification of old OS .25 engine
  118. bearings for OS 25FSR + 25F
  119. 13x8 Master Air Screw 3-blade prop for FS91 II
  120. Looking for OS 40SF ABC Specs
  121. OS .46 Idle Mixture
  122. O.s. 65 La
  123. Adapter for flex exhaust
  124. Os .91fx Abc???
  125. Questions 140rx
  126. OS FS 120 Non Surpass
  127. Relocating the crankcase breather on my OLD FS-40...
  128. OS SF 61 carb
  129. Os 10 Fp
  130. OS FT-160 twin
  131. os 160 tuned pipe
  132. OS 50SX-H Ring
  133. OS 1.40RX help
  134. OS .46FX not running well. Outside temp the problem?
  135. Does Slimline make Pitts Muffler W/Smoke for OS 160
  136. Os Max 40 Sr
  137. OS 90 / 91 FS bearing replacement proc.
  138. ? about OS 40LA
  139. OS91 4/c backfiring on each flip to start
  140. os 91 'c' spec heli engine
  141. os .35 help needed
  142. Service question
  143. Os 160
  144. Need Piston Ring for OS 160FX
  145. OS 25 quits
  146. .50 SX Ring engine
  147. FS 91 V FS 91 pumped
  148. Need help with fuel for O.S. 91 Surpass
  149. 46 FX Different pistons?
  150. OS 91 Surpass I
  151. is this OS 120 surpass I -sp running?
  152. Low end needle drift possible ?
  153. OS 91 4 stroke bearings.
  154. Os 140 Fi
  155. OS 91 4 Stroke Carb Settings
  156. Trying to find a rear bearing for 46fx...ARRRGH!!
  157. OS .90 FSR Specs/Manual
  158. OS 7L carb adjustment
  159. Clockwise engine
  160. OS .25fx funny noise
  161. O.s.91 4stroke
  162. Another 120 Question
  163. Futaba FP-T7UAP PCM/PPM
  164. OS 50 Reviews
  165. Original 120FS engine
  166. compression ratio for os 46 fx ?
  167. 61FX rpm on ground
  168. problems with my new os 70, 4 stroke
  169. 61?
  170. 91 FX Question
  171. FS-91SII-P Muffler?
  172. Os Ft 1.20
  173. frozen barrels on #21 carbs
  174. os .61fx modification
  175. OS 120 pumped won't run
  176. carburetor body
  177. FS-30 Surpass weight
  178. 46FX runnning a 3-Blade Prop
  179. OS .91-VR Ducted Fan
  180. Os Ft160
  181. O.S. 91fx
  182. O.S. 50 SX carb
  183. FS-120 Surpass II pumped
  184. OS 70 Broken valve spring
  185. Os 160
  186. Os .61fx
  187. OS warranty and fuel Q.
  188. OS Max .10 Starting
  189. Os .91 Fx
  190. disc. engine
  191. OS 91 FS w/pump
  192. OS 1.60 crankcase tap
  193. 120 surpass W/pump
  194. OS Carb on TT Pro 46
  195. OS 120 Surpass
  196. Cline and Associates Regulators
  197. OS 90 4 stroke engine
  198. Os 61 Rf-p
  199. Schneurle porting
  200. OS 90FS Manual
  201. OS .46SF parts
  202. OS 160 junk???
  203. OS Max 30
  204. 46 max idle
  205. New OS 46FX Peeling Question
  206. 40 LA Changes
  207. Surpass 70MKII Inverted
  208. Upside down?
  209. O.S. 26 Four Stroke
  210. Engine Spec
  211. max rpm for 61fx
  212. #21 Carbs
  213. Dirt Damage
  214. Leaks
  215. os 46 fx max HELP
  216. OS-52 four stroke
  217. OS 160FX Stock or Pitts Muffler
  218. Fx 160 in G202 GP
  219. Inverted OS 25 fx (4 engines, B-17)
  220. OS 120 Surpass II
  221. Os .35 FP--need a head gasket.
  222. Os 61 Sf
  223. Tower muffler for 46FX
  224. Os50
  225. Tank level/clunk for a .40 FP
  226. Ft-300
  227. Muffler for OS 160 fx
  228. Surpass 120 w/pump
  229. Pumped FS 70?
  230. 46 FX Exhaust
  231. Air Bleed Adjustment LA 46
  232. 1.6FX - NIB crank won't turn
  233. Submerged O.S. F.S. 52 Four Stroke
  234. OS 1.60FX power?
  235. Pumped .61SF fuel line connections
  236. FS 90 backfire and needle valve problems
  237. OS 160 fx port timing
  238. os fx .61, pitts problem
  239. os surpass 70
  240. Carb setting on 21RG
  241. OS 25 needs more grunt
  242. Super heated OS .91FX, AMC:Help!
  243. Ziroli B-25 (101) approx 35 lbs
  244. Os .91fx
  245. My OS 10 wont run right
  246. HELP! My engine won't run!
  247. os52 exhaust
  248. O.S 120 II pumped
  249. More RPM's
  250. FX 46 making me nutz

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