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  1. OS 25 fp RPM ???
  2. OS FP 35 -needle
  3. Best right mount muffler for OS 46 FX-H
  4. I'm not happy with my new OS .91 FX.
  5. Minimum nitro content 1.6 FX-FI
  6. Engine Timing
  7. OS 140 Surpass IV
  8. Fueling tricks for the pumped 91II?
  9. 7D carb
  10. Attn Bill Baxter or any OS rep that can help me
  11. muffler for os max .10
  12. Fuel Consumption pumped FS91-II
  13. OS .46 LA running problems
  14. OS 12 carburetor retainer
  15. Os 80 2 Stroke - Has Two Glow Plugs And Carb On Back
  16. Os 90 Four Stroke Model 1901 - Parts Needed
  17. Crash Question
  18. OS46Fx problems
  19. Why not make a supercharger for an engine!!!!
  20. You guys make great engines!!
  21. Fuel Type
  22. os 50sx problem.
  23. OS 120 4 Stroke Won't Idle Steady
  24. OS 120 Surpass wth pump Mk I
  25. OS 160 twin flame out
  26. Os 28f
  27. Os Older 25 Not Fp25 - Need Muffler
  28. os.32 low power
  29. old OS 90 2 stroke carb question
  30. O.S.Air Bleed Screw-original setting??
  31. OS Max .50 Model 50FSR-H Change Head?
  32. What year was the FS-60 introduced
  33. Help setting up OS Max FP 40
  34. Os Ft 160
  35. os 61 fx at 90 deg.
  36. Manual OS FS-40 (no Surpass)
  37. Surpass 120 valve timing
  38. Os 160 W/bisson Pitts Muffler
  39. O.S. 91fx
  40. 120-4cycle w/pump
  41. Sending for O.S. Max Service
  42. OS Max 60 sr NEED PISTON RING
  43. O.S. Long Stroke
  44. OS LA Series Problems?
  45. I need power band graphs for OS motors
  46. OS 91 Surpass not surpass II
  47. older os 90 with the glowplug in the front -- need both needle settings
  48. OS 46 FX like to start backward
  49. Prop size for Wankel?
  50. Old Os 120 non surpass with separate valve covers
  51. Please Close - found answer
  52. OS FS-120 III Surpass in Mile-High Denver
  53. CoolPower Green for OS .46 FX?.
  54. OS 32SX-H adjustment question
  55. Help with .61FX, changing needle valve position?
  56. OS 70 4 Stroke
  57. Os 46 Fxh
  58. .32
  59. OS 120 Surpass pump Mk1 or How to Save the pump
  60. OS 70 sv-h Breakin
  61. 4 stroke 70 OS
  62. 12CZ engine help
  63. OS 46fx runs great upright, but not inverted.
  64. OS 61 VF-H GS A-2 reduction Gear Unit
  65. Bearing Ball Missing
  66. OS-.50sx Best prop for speed+thrust??
  67. OS91FSII tap question
  68. Are there any downsides....
  69. Muffler Weight
  70. Fs140-fi
  71. need the distructions
  72. Difference between the OS 70 and 70II
  73. OS 70 II Surpass
  74. O.S 32 fh instructions needed
  75. OS .32SXH Bearing Removal
  76. O
  77. 140 RX EFI sagging
  78. Need Piston Help On Os.15cvx
  79. O.S. 1.20 Surpass II...
  80. OS .70 SZ-H Heli Availability
  81. prop size OS 91 surpass
  82. Mufflers For FT-160?
  83. O.S. .15CV settings ECT.
  84. Broken piston on O.S. .46FX
  85. Royally messed up .46FX!!!
  86. OS 91 FX needle settings
  87. 70FS Split Cotter Removal
  88. OS FS91 fuel flow problem
  89. OS .70 4 stroke problem
  90. OS Gemini 120 prop sizes
  91. Fixing up an old os .35fp need some help
  92. OS and KHB sleeve and Piston
  93. .46 Fx Compresssion
  94. 1.60 FX Bearings
  95. what is a stroke ?
  96. Engine running temperatures
  97. .50sx and 30% nitro
  98. OS 30 Max - S?
  99. Heavy hub on new 4 stk OS 91
  100. FS52s lot of oil
  101. Os 91 / Tuned Pipe Installation
  102. os fs 91 problem
  103. o.s. 120 surpass
  104. Compression ratio of OS .46FX and 1.60FX ?
  105. What RPM range in idel for a 0.46FX ?.
  106. os 70 shuts off
  107. OS46 Engine Quits?
  108. OS 91FS stops abrubtly recently
  109. OS 12tr Heat Sink
  110. Thanks O.S.
  111. 4 stoke engine maintenance
  112. Fan Installation os 50 sxh
  113. OS FS .40C Temps
  114. O.S. FS surpass II conversion from pump to non-pump
  115. Surpass II wont't run
  116. 91FX dimensions needed (not in manual)
  117. OS 140 with 60 pipe
  118. OS 120 Surpass II pumped won't run at full throttle.
  119. 61 ABC problems
  120. carburetor OS#60K
  121. OS 40 SF ABC throttle transition
  122. BGX 3500 Help!!!!!!
  123. HEATED owner of an OVERHEATED 91FX
  124. .46Fx
  125. 40 VF
  126. 0S .46SF - I want more power
  127. 91 SX-H timing info needed
  128. OS max 91 four stroke...no power or compression
  129. OS 1.40 prop
  130. .61 FX wont Idle, please help
  131. Gasket
  132. Setting high speed needle valve!
  133. Probs with .40fx
  134. 60J Carb
  135. os 120 surpass II w/pump
  136. OS50 XXrich@1/4 stick
  137. Os .15 Fp
  138. When to rebiuld?
  139. OS .10 Head and Back Plate Screw Sizes
  140. Need a new crank for and O.S.
  141. Removing Bearings and Crankshaft from 40 SF ABC
  142. os 91fs
  143. Os 15
  144. OS Max FP .40 Manual
  145. Os 50 Sxh
  146. Looking for manual
  147. OS 120 Carb
  148. Need OS part number...
  149. OS-30 weight spec is wrong!
  150. O.S. Surpass 30
  151. OS91 C-Spec
  152. 140RX spitting bearing!!!
  153. OS Engine Specs???
  154. fs 60 open rocker
  155. Engine Purchase Questions
  156. O.S. Buggy Engine, Can I convert to Pull start?
  157. Should I replace the case on a os 61?
  158. OS FSR/SF Parts Interchange
  159. OS 140 Rx storage
  160. OS 70 leaking???
  161. .15 Fp
  162. OS 52 4 cyl.
  163. os40la
  164. O.s. 61 Sf Prop Nut Size
  165. Os 91 Fs
  166. Os21 Vz-r
  167. os FX silinder pilling ,is this still hapening Cause i have one that did it with only
  168. OS Max 1.2 FS Surpass II pumped
  169. 120 4cycle w/pump
  170. os40fx vs os fs52s
  171. OS 120 Surpass III w/ pump wont advance from idle
  172. .15cvx
  173. O.S. .28f w/2h carb. Why is the head......
  174. old os 120fs
  175. Amcross, somebody... questions about .46 FX break in ...
  176. Marine engine OS 91 VRM, who knows about existance ?
  177. os40LA quits
  178. OS 120 surpass w/ pump
  179. O.S. 61 SF with pump
  180. Flexible Exhaust Pipe with OS 120 surpass III?
  181. Part for OS FS-90 (non-surpass)
  182. OS RZV01B(p)
  183. 160 FX adjusting woes
  184. Pressure Regular on OS120 III with pump
  185. Initial L & H End Carb Settings for .46 SF ABC
  186. OS 10 LA Leaking fuel
  187. FS-70SII Loss of power
  188. O.s. Fs70s Plastic Part
  189. OS .46 V Rear Exhaust
  190. os 46fx back cover assembly??
  191. Os 140rx
  192. O.S. 61RF-P with os header & os tunepipe
  193. Collets and Flywheels for FS40-C
  194. Os .91 Fx
  195. OS 50 Surpass clikcs when turned over
  196. 61 FSR Circa 1975 OILS?
  197. What is the replacement engine for the Max 25 FP?
  198. OS 91 FX in UK
  199. .91 2 Stroke
  200. Back Plate Mounts
  201. head bolts
  202. Which is it?
  203. Identifying OS Max 61 SX-H Subtype
  204. glow plug for 46 fx
  205. OS engine part needed
  206. Factory carb settings on 46fx?
  207. OS Max 40 sr NEED PISTON RING
  208. Os 10 La
  209. Engine Dissassebly Guide
  210. OS FT 160 Carb
  211. Will the crank from my .12 CV work in my new .15 CV-X ??
  212. Old model fx 120 surpass W/ #12 pump
  213. Online source for OS Engine Parts?
  214. OS 46 FX Carb Won't Close Completely
  215. OS50 SX-H 5B carb
  216. Pump priming?
  217. Mid throttle loads up OS160fx
  218. os .28
  219. OS 61 FX needle valve/fuel inlet positioning
  220. Back (cover) plate of 160Fx
  221. Crankshaft Extension for the OS 52 four stroke
  222. .61 FX peeling cylinder
  223. OS Max-H 60 (Max H60) parts needed
  224. OS 46FX Liner problems
  225. FF-240 In need of Manual?
  226. OS FS 120S SP Supercharged
  227. Looking for info on this .20
  228. FS-120 III w/pump silencer
  229. Questions for OS 120 Surpass III
  230. FS 120 pump output
  231. old os 15 max idle prob.
  232. OS 46 FX torque Curve
  233. O.S. 61 max sf
  234. Quick ? on four strokes
  235. OS 120 Thrust
  236. Set Screws in the High Speed Needle
  237. Is it worth fixing an old OS20??
  238. Frustration with 91FX
  239. Need Tuning Help OS MAX CV-X .15
  240. OS 25LA cylinder
  241. what series os 120 surpass
  242. older os120 surpass w/pump
  243. Os 1.40rx ?
  244. 46FX and 32SX break-in : Manuals says 4 cycle them / AmCross says that's a mistake???
  245. OS FT120 exhaust pipes
  246. OS .52 4 stroke
  247. Pump for OS 1.60FX?
  248. Os La 46 Muffler Extention...help!!!!
  249. Os .10 Fp

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