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  1. .70 Surpass Prop and RPM
  2. GBX tuned muffler?
  3. os 18tz eb modified
  4. os 120 surpass hs-needle
  5. inconsistent RPMs
  6. O.S. 12TZ-T Rotary Carb?
  7. OS 50SX-H Nitro Question
  8. OS .55 Muffler Extension - Tower .46 Muff
  9. os 70 surpass vs os 61 fx fuel consumption
  10. la65 help
  11. OS 70 Surpass Removing conrod
  12. OS Max .40 fp
  13. Ft300 timing
  14. O.S. 1.20FS Engine Question
  15. GP kit spinners bad for our OS engines?
  16. OS 46 AX mid range stumble
  17. v-spec
  18. OS 46 SF abc - P
  19. os 91 fs surpass pumped
  20. Magnum #2 in OS 160 FX
  21. OS .21 VG ShimmingThank
  22. Leaky Carb in OS 18 TZ?
  23. .21 V-Spec Dust Cover ripped, dirt present. Best way to clean?
  24. OS .46SF pump carb
  25. OS 1.20 FS Surpass
  26. 91 FSR Carb Linkage
  27. OS .91 surpass II w/Pumps leaks at regulator
  28. Need a prop for OS 25FX
  29. Rear bearing wont stay in place
  30. Os Fsa-56
  31. 91 non pumped 4 stroke
  32. os 91 fs surpass pumped
  33. Os 18tm
  34. 91 fs power output
  35. OS FS-91 SII-P
  36. OS .55AX problem
  37. New O.S. Surpass III Pumped questions.
  38. OS 91FX High Speed Needle Valve
  39. O.S. 1.20AX Dead stick problems
  40. New to RC - Need help with FXi 46 Mixture Control Valve
  41. OS91FX Trouble shutting down
  42. Can I Install a Pull-Start on an O.S. .18-CV-R???
  43. Muffler Compatibility - 25FP vs 25LA
  44. OS46VXDF
  45. I saw the OS .75 AX ringed engine
  46. OS Surpass II with a Pump
  47. Connecting rod
  48. model weight for 91FX
  49. FP40 feels strange when crank turned
  50. MOVED: New OS FSa-56 4 stroke
  51. OS 300 Twin
  52. Are O.S. Engine parts made in China?
  53. 91 surpass needle settings needed
  54. Os fs 40cx car
  55. os 120 ax prop and fuel recommendations
  56. dtx 18 and os 15 cv
  57. OS55 prop reccomendations
  58. O.S. 70 Surpass valve adjustment??
  59. How about a Factory Support Forum for GMS engines?
  60. OS 46 AX...Runs with needle valve closed !
  61. OS 50 Hyper Help?????
  62. os fs 52s
  63. New OS 61fx and MACs Tuned pipe
  64. .21 Vspec break in.. No, first time starting...?
  65. what glow plug on .18 ostm?? is os# 8 ok?
  66. Tuned Pipe for the O.S. 18TZ
  67. OS FS 70 ll surpass...black guey stuff
  68. .15 cv-r
  69. os 120 surpass aluminum motor mount
  70. OS FS 48 Surpass
  71. Idle trouble on my OS 12TR w/10J carb.
  72. OS .60 fgr questions
  73. OS 120 Surpass III
  74. OS FS 70 Surpass 11
  75. OS 30VG Compression ?
  76. Header and Pipe Combo
  77. OS 30 run in
  78. O.S. 18TZ-TX versus O.S. .18 CVR-M
  79. COOLPOWER SUPER T FUEL
  80. RECOMMENDED TEMPERATURES OS46 AX
  81. os 12 cv-r settings
  82. What's the best fuel for my OS 160FX?
  83. OS91FX mixture setting
  84. .52 muffler woes
  85. muffler swap
  86. Was told to repost this here in case someone can help. OS AX .46
  87. Hobby Services
  88. os 91 fs pumped is muffler needed ?
  89. Carb sticking at about 1/2 throttle
  90. OS 120 AX
  91. os 120fs header fit??
  92. will it fit A JATO
  93. VZB Vspec 21
  94. DTX .18
  95. OS 120 Am After Market Pitss
  96. SZ91H-PS head shim question
  97. OS Wankel Overheating
  98. OS 30vg and 30%
  99. OS .46fxi seems tight after setting
  100. OS .18 question
  101. OS 1.08 FSR 1.08
  102. 60L vs 60B
  103. os 35 question
  104. OS VR DF 91 with tuned pipe and prop option
  105. OS fs 40 four stroke
  106. dtx .18
  107. Traxxas "ez start" spinning on my os 18
  108. .46 and .55AX Help
  109. OS120AX
  110. fs 70 surpass
  111. BGX Start problem upside-dow
  112. Need new crankshaft for 160FX - taken care of
  113. OS Engines .21 VG
  114. OS .91FX
  115. OS46V Rear Exhaust
  116. OS FX 91 sputters on high end
  117. FS120 III Exhaust
  118. OS 300 Twin
  119. problem: 4 stroke mounting
  120. Heat cycle break-in???
  121. Quits at idle after removing glow charger - OS 70 Surpass II
  122. Running In an OS37SZ-H
  123. OS VSpec Pipe designations
  124. 30% Heli fuel in OS 46FX?
  125. OS 91 DF ?? what fuel????
  126. OS .55AX needle valve.
  127. FS 120 III Surpass - False firewall
  128. FS = OS is Tamiya FS an OS
  129. OS 91 Pumped problems
  130. .18 TZ question I'm a little confused...
  131. excesive fuel
  132. Idle bar plug
  133. new OS Wankel
  134. Getting an OS10FP head
  135. FS-120 Surpass III Engine w/Pump - tank location and plumbing
  136. Excessive fuel from crankcase vent
  137. OS Timing FS 61 Surpass
  138. Need Help... Stressed out...
  139. MOVED: Fuji43EI RF Interference
  140. Piston color
  141. 120AX & 160FX Noise Levels?
  142. MOVED: O.S. 91 Surpass prop and Sig Hog Bipe
  143. ENGINE TROUBLES
  144. OS FS 120 in a Giant Big Stik?
  145. 1.60 twin pressure taps help??
  146. O.S. 18 TZ-TX problems
  147. Needle valve for O.S. FS-120S-E Surpass
  148. O.S. 1.20 AX muffler
  149. need advice for 1.60 gemini twin exhaust ext
  150. OS FP .40
  151. OS .50 SX Break-in
  152. Header and Tuned Pipe
  153. Sticky carb slide on OS .21 VG on Losi 8 buggy
  154. Play on rebuilt vspec
  155. OS 20 piston and cylinder
  156. OS 200 FS & GP Giant Aeromaster
  157. stuck engines
  158. Need Pullstart or Roto Start... help ?
  159. o.s .18tm rebuild help
  160. os 46fxi
  161. OS 30 VG pull to roto start.
  162. Need advice on backplate pressure tap for 160FX
  163. break-in props for 91&1.20 fs's?
  164. resetting mixture screw on OS 91 surpass
  165. o.s30vg max.. temp info please...
  166. OS 1.20
  167. new o.s .18tm
  168. FS-91 surpass (I) manual
  169. used .46 ax with tuned pipe
  170. O.S. 18. CVR-X carb leak?
  171. Will the .18TZ fit !?
  172. OS 91 power
  173. .46 FXi vs .46 FX?
  174. OS 91 with pump Regulator leaking
  175. 06 mc
  176. OS 1.08 inconsistant running ?
  177. OS Engine for HPI RS4 EVO3
  178. OS 61 FX Question
  179. Need to extend my Bisson muffler tubes
  180. Fitting and OS50SX
  181. OS 91 FS w/pump bogging down!
  182. FS-70 rebuild??
  183. o.s. o.b. break in
  184. FL70 Backfire problem HELP?? please???
  185. 25VF-DF on Viper Q-500
  186. OS Nipple Mounting
  187. marine 4-strokes?
  188. 180 header for the OS 18TZ -TX
  189. OS 120AX
  190. OS 55AX carb problem
  191. OS 52 and 70 surpass
  192. Fuel line size
  193. 91 surpass II lsn
  194. 18x6 prop for os 1.60??
  195. OS 91FX
  196. Can you Identify my OS120?
  197. 91 Surpass Bearings
  198. OS 91 4 stroke
  199. OS 160 Fx
  200. os. 18 tz won't start
  201. Tuned Pipe Confusion...Please Help~
  202. MOVED: 15LA
  203. OS 61FX
  204. Useful OS engine site
  205. What does the number on the muffler really mean?
  206. starter?
  207. OS91FX on tune pipe
  208. OS 46 AX won't turn over freely
  209. why dis-continue the cvr.12?
  210. 21vg, 30% nitro head shim
  211. OS 46 VXDF (or OS 46 VX-M) question
  212. OS BGX 3500
  213. Mid-range rattle ?
  214. OS 55 Ax Exhaust again
  215. OS 55 AX
  216. os .18 cvr crankcase stripping head bolts
  217. FS120-II with pump not consistent
  218. Header for 30 sized OS
  219. OS FS 70 Ultimate
  220. fs 40, seems to knock
  221. OS 18TM
  222. OS 91-FS Surpass 1 high speed needle overflow
  223. OS Instruction Manual Confusion
  224. osmg1992 crankcase pn#
  225. Broken Pressure Tap
  226. O.S. 160FX 3 bladed prop question.
  227. 1.60 FX in a Spitfire
  228. o.s. crankshaft
  229. OS 91 FX Question
  230. OS 61 SF peeling, fact or fiction
  231. Pull start for .12 CV-R
  232. MOVED: Aftermarket Piston, ring & cyl. liner 91Fx
  233. Help to ID OS motor
  234. OS61fx in a 46. size plane
  235. O.S. TZ-TX pull start help
  236. 3Blade Prop for OS BGX 3500
  237. Tuned exaust
  238. os .25 FX
  239. .40 LA Help.
  240. Extending the shaft of a FS120
  241. OS91FX mid range problem
  242. O. S. 1.60 FX FI
  243. OS .21 vpec question
  244. How to calculate thrust?
  245. OS FS 200 & 200FI
  246. help with parts for 91 fx
  247. 40 fs, info on ring/cylinder
  248. MOVED: Disassembly / reassembly O.S FS engine
  249. prop for 40 fs
  250. OS 61SF ABC-P

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