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

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