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  1. OS .21 VZ-B V-Spec-T Break-In Questions
  2. Fuel for 1.60 FX
  3. O.S. .50F SR
  4. os engine for revo racing
  5. Re: Differences in the .61SF & .61SF-H
  6. Idle Stop screw
  7. 1.60 rear crankshaft bearing
  8. What modern OS 4-stroke engine has the same power as the OS H60F from the 1970s?
  9. OS 160 FX Mid-range tuning
  10. Inverted OS 70 Surpass II run problems
  11. Engine accessories
  12. Crankcase breather
  13. 91FX break in
  14. Long term storage 91FX
  15. Why did OS stop making hot 2 strokes?
  16. lack of engine compression
  17. OS FS-91SII-P Extreme Vibration
  18. OS .46LA carburator issue
  19. OS120AX
  20. OS 70 FS II Exhaust Header
  21. What's the difference between 120 Surpass (I), II and III?
  22. OS FS 120E Pressure question
  23. crank bearing removal and install
  24. 46SF ringed starving for fuel
  25. Need specifications for O.S Max FT-120 Twin Gemini ll
  26. Fuel for Surpass 70
  27. O.S 70 SURPASS prop question
  28. 50sx/50sxh bearing failures
  29. OS 0.25 FP engine running problems
  30. need book on 120 fs
  31. "effective adjstment range" for low speed needle
  32. *OS 120AX Sounds Rough*
  33. macs tuned pipe for os 61 fx
  34. V-spec piston skirt
  35. OS 91FX old engine
  36. OS 46FX Help
  37. Valve lash tool for FS-70 II?
  38. fs120 super charger.........need help
  39. OS 91 FS Surpass pumped
  40. ill,
  41. os max 120
  42. MOVED: Carbon Prop for 160FX
  43. Purpose of mixture screw on FS-70S II
  44. Throttle arm
  45. OS35 Parts
  46. VG 30 + 2060SC STRANGE ??? HELP
  47. SF 61 w/pump, help needed
  48. OS FS 61 disassembly question
  49. o.s 1.20 surpass fuel tank
  50. MOVED: one way bearing issue
  51. 1.60 FX
  52. .21 WM Flex Shaft Problems
  53. pulling out piston/piston rod/piston shaft
  54. Help fixing seized fly wheel or piston
  55. OS 160 ring
  56. os 46 low end problem
  57. max distance from tank to engine for OS61FX
  58. OS 50 sx two-stroke problem
  59. Resetting Mixture Screw on FS-70S II
  60. Easy 160FX Muffler question.
  61. OS Glow plugs-mechanical failure
  62. vspec shim or no shim
  63. OS .12 CV-X
  64. Looking for some manuals 45 FSR, 40 FP and FS 40
  65. OS 46 Sputtering
  66. OS .91 fx pitts stype muffler
  67. OS 70 Ultimate probs
  68. OS .18 cv-rx extremely fast idle at startup
  69. 0.S. Engine (help me)
  70. OS max 61 VR
  71. O.S. AA twist-lock glow ignitor problem!
  72. Vspec tuning
  73. looking for prop help
  74. OS FP .10 Piston orientation
  75. Can I convert my .15 CV-X recoil to electric start
  76. I need help with my engine
  77. OS .61 FSr ringed 7m carb
  78. v-spec carb
  79. OS 46 LA idle
  80. 160FX midrange
  81. pic of my revo
  82. 18tm eb mod and 18tm stock
  83. I need an O.S. engine!
  84. AX46 tuning problem,,
  85. CV-X noise
  86. 12 tz(5p) temperature
  87. .12 CZ-R
  88. .91 surpass pumped
  89. OS 91FX or OS 91 Surpass w/ pump?
  90. O.S. 160FX-FI set-up problems
  91. O.S. 91 Surpass valve spring replacement
  92. OS 120 Surpass III pumped
  93. How to replace needle valve
  94. OS 20 FP Muffler needed
  95. Replacement needle valve needed for original OS FT 120 Gemini
  96. OS 50 max
  97. O.S. 18 TM?
  98. OS 46 FX.... muffler extension
  99. OS FS 91 Surpass drowning
  100. Bearing replacement procedure for OS 1.40 RX
  101. OS 120 Gemenii Engine
  102. OS 70 Surpass II spinner nut...
  103. O.S. Engine Lost Compression...
  104. os91 4t regulator leak while runing
  105. OS 1.60 Compression Issue
  106. OS.50SX-H best fuel for this motor?
  107. Leaky 18tm on my REVO normal??
  108. piston ring
  109. OS .18TM Clutch Bell Install
  110. FT 160 Carb.
  111. OS .46 AX 'afraid to fly'
  112. O.S Max 60sr need specs.
  113. Losing cylinder on OS FT 160
  114. bx1 108
  115. old os .90 fs
  116. Can I use this in a airplane O.S. .91SZ-H
  117. os 18 cv-rx normal wear???
  118. OS .46FX Nose Dive Into Ground
  119. pls help(.18tz)
  120. .18 os tm heating too quickly HELP!
  121. OS VZ-B VSPEC Questions
  122. O.S. FL 70 2-vent setup
  123. aluminum spinner for O.S.50SX
  124. MOVED: OS 160FX
  125. *OS 120AX 2 Stroke*
  126. 91 FX overheating at idle
  127. 120 lll w/Pump Starting Prob
  128. 20% for the .61??
  129. 1.60 pitts muff
  130. OS FS91 II RPM PROBLEM
  131. OS 120 Exhaust Routing
  132. OS FL 70 info?
  133. General FT 160 question/s
  134. OS 140RX fuel tubing
  135. Quality
  136. 46AX Optimal Prop
  137. Prop for 1.08
  138. Engine Mount Help
  139. What the news on the 2.0 EF1 Akiba's been using?
  140. FS 120 Surpass
  141. FS-91 Surpass 35900
  142. running without nitro
  143. OS .21 VZB Rebuild problems
  144. OS 91 Surpass
  145. OS.46-LA - Putting it back together...
  146. Rich Runnig .91 fx
  147. OS 61 FX
  148. 60 C Carb on 65 LA
  149. scoring on piston
  150. O.S .50sx
  151. O S 65 LA ldle
  152. 46FX rear bearing won't come out
  153. Replacement screws w/ hex head
  154. 91 FX backplate New Design??
  155. Strange noise coming from 1.60 FX
  156. FX 160 RPM
  157. O.S. .18cv-r average running temps
  158. How do I get connecting rod off OS 50SX?
  159. Exhaust port diameter
  160. OS 70 4-Stroke Low Power/Compression ???
  161. FS 91 S11 Header
  162. break-in mixture setting
  163. OS 160 FX
  164. Thread size of exhaust port on OS 91
  165. tower 75 parts and problems.
  166. Is Wildcat 15% good for the .18cv-rx
  167. os max 21rf-b
  168. O.S. .18 TM for Jato
  169. Change bearings in OS FT-160 Gemini
  170. o.s. 1.60 four stroke
  171. max rz v01b ?
  172. O.S. Hub Size
  173. O.S .18 CV-RX help
  174. 2BK issues
  175. O.S 50 Hyper heli engine in a plane
  176. Surpass 91
  177. 46AX slow trasition
  178. 120 Surpass III break in
  179. V-one S & Max - 12TZ
  180. .12CZ-RX rust on crank(and other issues) pictures
  181. os .18 carb adjustment help!!!!!!
  182. .12CZ-RX rust on crank (and other issues)
  183. Peak RPM OS120 III pumped
  184. OS 48 4-stroke
  185. 46LA
  186. Reposition main needle assembly
  187. Aquacraft .15 marine engine.
  188. changing idle screw O-ring ???
  189. 120AX Prop
  190. OS BGX 3500
  191. FL-70 Problems
  192. prop help
  193. O.S. FS-70 Exhaust Options
  194. OS .25 FX problems
  195. 91 FX gasket
  196. O.S engines
  197. HELP!! OS .18TM won't stay running
  198. 3 blade prop size for .91 surpass I ?
  199. 120 Surpass Rebuild
  200. Turning OS 70 Surpass carb.
  201. 40fp stutter??
  202. Carb mounting screws for a 46 AX
  203. Will 46SF carb and backplate work on a 46FX?
  204. OS 91 FS SURPASS FUEL?
  205. os engine starter???
  206. OS 120 series 2 pumped
  207. FS 40S-CX instructions
  208. FS-61
  209. Vspec HELP
  210. valve timing O.S. 52 Surpass
  211. 91 surpass repair
  212. Hot setup for the 120 Superchaged engine
  213. os 12 quistion
  214. 46ax tach reading on 30% nitro
  215. Traxxas TRX 2.5R
  216. OS .91 FX Reputation
  217. OS .18TM in a HPI R40??? Please ASAP
  218. O.S. Max 40FP pdf's available?
  219. OS 1.60FX, Enough Power?
  220. O.S .18cv-rx Won't start after tune..
  221. Surpass II pumped running problem
  222. OS 18 cv-r exhaust Question
  223. wont idle
  224. OS 61FX - Needle Valve Assem/Move
  225. Japanese Industrial Standard Screws
  226. Is the engine dead?
  227. Cam Timing
  228. os 91fsII-p trouble
  229. os .18 tm question...
  230. Info on .91FX
  231. Trouble with O.S. Max 30-VG(P)
  232. Where can I buy m.+m2.6x7 screws?
  233. os .12 TR
  234. Greetings Bax, I've got a brand new OS 52 that I've installed inverted in my plane.
  235. Suggested RPM for an OS FS52 ?
  236. Piston Replacement on 1.60 FX
  237. Should I send my engine for Warranty??
  238. MOVED: os 1.08 or .91 card for ASP 1.08?????
  239. 46ax break in prop?
  240. OS 61 SF Pump
  241. OS 37SZ-H-RING RUNNING PROBLEMS
  242. OK to use 46SF 4D carb on new 46AX?
  243. OK to use 46SF 4D carb on 46AX?
  244. 120AX woes
  245. mount for BGX-1-3500
  246. OS 61 FX Needle setting
  247. OS 46 LA - broken carburetor part
  248. OS 15 LA Backplate ???
  249. O.S. .37 SZ H Burping Problem.
  250. os .18 cv-rx break-in help