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  1. i need help with my o.s. .70 4 cycle
  2. os .18 for a winner sport
  3. .18 cv-rx exhaust question
  4. OS 70 Ultimate backplate
  5. OS .18 crankshaft too long
  6. CZ-R idle problems
  7. Changing an OS .61SF ABC to Ring?
  8. LA 15
  9. os la looses power in flight
  10. BX1 ???
  11. OS 160 twin spinner
  12. Apex Seals for 49-PI Wankel
  13. Fuel tank location for OS 160 twin in 1/4 scale Balsa USA Pup
  14. MOVED: Another broke O.S. .21 v-spec
  15. Another broke O.S. .21 v-spec
  16. How do you adjust low speed OS46SF W/PUMP
  17. Old O.S. SF with new O.S. FX Muffler ???
  18. os 120 3 w/pump
  19. Largest 3 blade prop for OS 1.60FX
  20. OS 108 RPM
  21. OS50SX-bearings
  22. another question
  23. OS Breaking-in procedure
  24. os 120 surpass2
  25. Where can O buy a regulator for my 120 pumped?
  26. O.S. Max 90
  27. OS 18 CV-R and Kwik-Pit Super Start
  28. Converting OS .18CVR-X to non pullstart ?
  29. MOVED: exhaust pipe
  30. need help
  31. exhaust header
  32. An old OS 21
  33. I need parts
  34. o.s.18tm temp?
  35. OS. FX 1.60
  36. 160fx dead stik
  37. How rich is too rich??? Need Help Tuning!!
  38. OX .46 Muffler Baffle
  39. .18 cvr cooling head
  40. OS .30 Fuel
  41. OS 40 Max Muffler
  42. Diference between OS 120 FS and 120 FS with pump?
  43. need help super fast
  44. OS Max .12TR
  45. V-spec Rod ?
  46. 46FX Run Problems
  47. OS 46 SF cylinder head
  48. spray bar 91 surpass
  49. walbro carbs?
  50. fit an Iron Bay feOS 46AX pressure nipple
  51. OS 65 LA rpm problem.Please help...
  52. After Run Oil For OS 75
  53. OS .12 TR
  54. OS 15 CV-R
  55. OS 1.60 FX for WWI plane
  56. O.S. .70 Ultimate 4-Stroke problems
  57. OS 91 FS w/pump: midrange problem.
  58. OS .61FX W/Pump
  59. os 160 ft needle valve/exhaust clearance
  60. OS max .25FP????
  61. .18tm piston question
  62. .18 CV-RX(s) Crank Broke
  63. Breaking in Question
  64. how do I know it's worth getting service ?
  65. MOVED: OS .50 RINGED
  66. Old OS 91 surpass FS needle problem
  67. propeller for os 120 AX
  68. Lean run or failed bearing?
  69. os .18 motor
  70. My .18 TM
  71. 91 fx with a 61 size pitts muffler
  72. clutch help...
  73. OS .61 SX-H No Start
  74. 120 AX, what is CCD technology?
  75. OS 91VDRF Pipes
  76. O.S. 1.60 FX Fuel Line ??
  77. o.s. max cz-r
  78. OS 46 FXi
  79. V-Spec plug ??
  80. FL-70 aerobatic tank setup
  81. OS .12TZ & RC10GT
  82. V-spec rod rubbing backplate
  83. OS 160 FX
  84. OS 32 setting
  85. slimline pitts/o.s. 91 fs 11
  86. OS Fxi Broken carb flange
  87. I want to send 3 engines for service
  88. OS FS 70 Ultimate 4-cycle w/pump
  89. OS ENGINES SUPPORTFOR MY
  90. BROKEN CLUNK "O"RING
  91. OS 91 FX Problem
  92. Injector of OS 140RX-FI
  93. OS 50sx leaky two piece muffler
  94. OS 91 FX muffler problem!
  95. OS 300 twin upgrades available?
  96. O.S MAX FXi 46 settings
  97. FS-91 II vibration problems
  98. 18 TM BUTTON HEAD
  99. os 40 fsr power
  100. 30% nitro
  101. O.S Max 40 FSR - appears to have bent rod?
  102. OS MAX-40LA needle valve
  103. Altitude and engine sizing
  104. OS .18TM on revo. Help with tunning!!!!
  105. Help! - OS FS 91 Full throttle is not Full Speed
  106. .12 CV-R warranty question
  107. 50 sx backplate
  108. 46 FX-H carb
  109. O.S. Limited FS Line of Engines
  110. MOVED: engine question . . .
  111. CV-RX .18
  112. OS Max 40 H
  113. OS RG .21 Idle ?
  114. H60FGR
  115. break in for OS1.08 FSR
  116. PROBLEM WITH NEW 1.20AX
  117. Removing Gum From Cylinder
  118. 18 tm revo piston rod spacer
  119. OS FS40 old four-stroke
  120. OS MAX FXi 46 not starting
  121. OS 70 FS Bearing ?
  122. OS 91FX 2 Stroke
  123. Pump for 46VXDF
  124. .12 tz break in
  125. OS fs-91 surpass running problems
  126. Brand New OS 46AX Grinding
  127. Prop Recommendation for an FS-120S-E/GP PT-17?
  128. os max 40 fp
  129. FT-120 questions.
  130. *Prop For The New OS MAX 120AX*
  131. OS 28F
  132. Front bearing question?
  133. OS 140 RX ... after run?
  134. OS MAX 46FXi Carb woes
  135. OS 50-SX and APC 14x4W?
  136. Ft-160 - How Many Versions?
  137. OS 50SX PART QUESTION
  138. MOVED: 15mm ID O-ring Adapter
  139. OS160FX FI problems
  140. os 4B carb factory idle mixture settings
  141. OS 91 FX inverted mounted problems
  142. spec sheet on .12tz
  143. OS 50 FSR questions
  144. OS48 Surpass Help
  145. YS20/20 Fuel in O.S.1.40RX?
  146. 91SII fuel leak
  147. fuel spitting out of carby - OS91 FS II Surpass
  148. .20 fp leaky
  149. Repowering
  150. OS 70 surpass II with pump, erratic running
  151. OS Max .61 SF (Ringed)
  152. CP 20% heli on OS 50 SX and OS 46 AX
  153. two needle carb from the new OS 160 twin fint the old 160 gemini twin with air bleed carb?
  154. In a revo
  155. Old O.S 48 FS
  156. Throttle on O.S. FS-70 II Surpass
  157. temp
  158. OS 46AX bearing question
  159. OS .12 TZ w/sidewinder 16% fuel
  160. MOVED: Old OS Max-H 60
  161. OS MAX-H 40
  162. os91 4t w/p surpass - fuel regulator problem
  163. Bax, what's the word on the OS 200 4-cycle?
  164. .12 CZ-R
  165. OS 1.20SIII (pumper)
  166. OS 46ax tuning problem
  167. O.S 46LA starting problems
  168. OS FS_1.20SIII will run without high speed needle
  169. O.S. L52 SC Complete Set One-Piece Pipe
  170. Conversion from RC to CL - 25 sizes
  171. How to hide the OS 91 FS Surpass Muffler ?
  172. Parts for a OS 40 FSR
  173. Is this normal?
  174. factory settings, .18tm
  175. 160 FX EXHAUST HEADER
  176. Max .37SZ-H Ring on a Concept
  177. .61 FSR
  178. OS91SX ACRO ??
  179. 18tm running in question
  180. O.S. 12 TZ
  181. instructions for old OS engines
  182. .12 cv os max and a 10L carb
  183. O.S FS-91
  184. OLD OS 70 SURPASS
  185. o.s. 18 cv
  186. OS FS crankcase breather
  187. OS 48 Rebuild Help
  188. OS FS91SII Bearing change trouble
  189. Pig in a poke??
  190. .61 FSR
  191. 61 FSR Rebuild
  192. O S 46FXi dies on takeoff
  193. Header and pipe set for .18 CV-RX (s) rotary carb
  194. 91FS Exhaust outlet pipe
  195. 46AX DOES NOT SOUND GOOD AFTER 10 FLIGHTS? HELP!
  196. OS-120 proper prop?
  197. os 46 needle setting problem
  198. Urgent- which clutch set for a .18CV-RX ?
  199. Extension part of E-4020
  200. FS 40 Surpass air bleed screw?
  201. OS 61 FS rebuild
  202. FS 61 Cam Bearings
  203. FS 61 Timing
  204. OS 18 CVR pull start problem
  205. I can find this part PA-102 pump system
  206. 1.08 Carb sleeve
  207. easy 1.08 question
  208. .12? carb
  209. os 1.6 fx overheating in giles 202
  210. FS-120Surpass II
  211. Need OS 52 FS manual
  212. 91 surpass no exhaust
  213. How do you break in an os 40 Fx
  214. OS 46 AX is it good or not
  215. OS91fx question
  216. Break-in prop for .91 FX
  217. .30 engine mount
  218. Fuel for a BGX?
  219. 1.08 bearing replacement surgery
  220. 46FX---AX help
  221. 140 RX... what glow plug?
  222. OS 120 Surpass I - Pump leak
  223. FS-70II RPM and exhaust questions.
  224. OS FS70 Ultimate
  225. OS 140 RX pipe tuning procedure
  226. OS 140 RX FI
  227. surpass backfire
  228. OS 120AX????!
  229. OS 61 in P-51 ARF
  230. OS.18cv-rx problem
  231. RUT ROH! .18TM gone??
  232. FS 120 w pump
  233. OS.18cv-rx problem
  234. os fs61
  235. OS 160FX FI
  236. OS 46 AX mid-range
  237. OS 200 4-stroke
  238. 2 questions
  239. 2 stroke piston orientation
  240. OS 160 factory settings
  241. OS .12 TZ 3port with HPI roto start?
  242. OS FS-91, bearing replacement.
  243. Weird OS40 LA Problem
  244. os91fourstroke
  245. OS part # 23882900 help
  246. OS 1.20 Surpass W/pump fuel line hookup?
  247. New OS LA 15??
  248. FS 90 trouble
  249. ball bearing replace on fs91p
  250. OS FS 26C II