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