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  1. Largest 3 blade prop for OS 1.60FX
  2. OS 108 RPM
  3. OS50SX-bearings
  4. another question
  5. OS Breaking-in procedure
  6. os 120 surpass2
  7. Where can O buy a regulator for my 120 pumped?
  8. O.S. Max 90
  9. OS 18 CV-R and Kwik-Pit Super Start
  10. Converting OS .18CVR-X to non pullstart ?
  11. MOVED: exhaust pipe
  12. need help
  13. exhaust header
  14. An old OS 21
  15. I need parts
  16. o.s.18tm temp?
  17. OS. FX 1.60
  18. 160fx dead stik
  19. How rich is too rich??? Need Help Tuning!!
  20. OX .46 Muffler Baffle
  21. .18 cvr cooling head
  22. OS .30 Fuel
  23. OS 40 Max Muffler
  24. Diference between OS 120 FS and 120 FS with pump?
  25. need help super fast
  26. OS Max .12TR
  27. V-spec Rod ?
  28. 46FX Run Problems
  29. OS 46 SF cylinder head
  30. spray bar 91 surpass
  31. walbro carbs?
  32. fit an Iron Bay feOS 46AX pressure nipple
  33. OS 65 LA rpm problem.Please help...
  34. After Run Oil For OS 75
  35. OS .12 TR
  36. OS 15 CV-R
  37. OS 1.60 FX for WWI plane
  38. O.S. .70 Ultimate 4-Stroke problems
  39. OS 91 FS w/pump: midrange problem.
  40. OS .61FX W/Pump
  41. os 160 ft needle valve/exhaust clearance
  42. OS max .25FP????
  43. .18tm piston question
  44. .18 CV-RX(s) Crank Broke
  45. Breaking in Question
  46. how do I know it's worth getting service ?
  47. MOVED: OS .50 RINGED
  48. Old OS 91 surpass FS needle problem
  49. propeller for os 120 AX
  50. Lean run or failed bearing?
  51. os .18 motor
  52. My .18 TM
  53. 91 fx with a 61 size pitts muffler
  54. clutch help...
  55. OS .61 SX-H No Start
  56. 120 AX, what is CCD technology?
  57. OS 91VDRF Pipes
  58. O.S. 1.60 FX Fuel Line ??
  59. o.s. max cz-r
  60. OS 46 FXi
  61. V-Spec plug ??
  62. FL-70 aerobatic tank setup
  63. OS .12TZ & RC10GT
  64. V-spec rod rubbing backplate
  65. OS 160 FX
  66. OS 32 setting
  67. slimline pitts/o.s. 91 fs 11
  68. OS Fxi Broken carb flange
  69. I want to send 3 engines for service
  70. OS FS 70 Ultimate 4-cycle w/pump
  71. OS ENGINES SUPPORTFOR MY
  72. BROKEN CLUNK "O"RING
  73. OS 91 FX Problem
  74. Injector of OS 140RX-FI
  75. OS 50sx leaky two piece muffler
  76. OS 91 FX muffler problem!
  77. OS 300 twin upgrades available?
  78. O.S MAX FXi 46 settings
  79. FS-91 II vibration problems
  80. 18 TM BUTTON HEAD
  81. os 40 fsr power
  82. 30% nitro
  83. O.S Max 40 FSR - appears to have bent rod?
  84. OS MAX-40LA needle valve
  85. Altitude and engine sizing
  86. OS .18TM on revo. Help with tunning!!!!
  87. Help! - OS FS 91 Full throttle is not Full Speed
  88. .12 CV-R warranty question
  89. 50 sx backplate
  90. 46 FX-H carb
  91. O.S. Limited FS Line of Engines
  92. MOVED: engine question . . .
  93. CV-RX .18
  94. OS Max 40 H
  95. OS RG .21 Idle ?
  96. H60FGR
  97. break in for OS1.08 FSR
  98. PROBLEM WITH NEW 1.20AX
  99. Removing Gum From Cylinder
  100. 18 tm revo piston rod spacer
  101. OS FS40 old four-stroke
  102. OS MAX FXi 46 not starting
  103. OS 70 FS Bearing ?
  104. OS 91FX 2 Stroke
  105. Pump for 46VXDF
  106. .12 tz break in
  107. OS fs-91 surpass running problems
  108. Brand New OS 46AX Grinding
  109. Prop Recommendation for an FS-120S-E/GP PT-17?
  110. os max 40 fp
  111. FT-120 questions.
  112. *Prop For The New OS MAX 120AX*
  113. OS 28F
  114. Front bearing question?
  115. OS 140 RX ... after run?
  116. OS MAX 46FXi Carb woes
  117. OS 50-SX and APC 14x4W?
  118. Ft-160 - How Many Versions?
  119. OS 50SX PART QUESTION
  120. MOVED: 15mm ID O-ring Adapter
  121. OS160FX FI problems
  122. os 4B carb factory idle mixture settings
  123. OS 91 FX inverted mounted problems
  124. spec sheet on .12tz
  125. OS 50 FSR questions
  126. OS48 Surpass Help
  127. YS20/20 Fuel in O.S.1.40RX?
  128. 91SII fuel leak
  129. fuel spitting out of carby - OS91 FS II Surpass
  130. .20 fp leaky
  131. Repowering
  132. OS 70 surpass II with pump, erratic running
  133. OS Max .61 SF (Ringed)
  134. CP 20% heli on OS 50 SX and OS 46 AX
  135. two needle carb from the new OS 160 twin fint the old 160 gemini twin with air bleed carb?
  136. In a revo
  137. Old O.S 48 FS
  138. Throttle on O.S. FS-70 II Surpass
  139. temp
  140. OS 46AX bearing question
  141. OS .12 TZ w/sidewinder 16% fuel
  142. MOVED: Old OS Max-H 60
  143. OS MAX-H 40
  144. os91 4t w/p surpass - fuel regulator problem
  145. Bax, what's the word on the OS 200 4-cycle?
  146. .12 CZ-R
  147. OS 1.20SIII (pumper)
  148. OS 46ax tuning problem
  149. O.S 46LA starting problems
  150. OS FS_1.20SIII will run without high speed needle
  151. O.S. L52 SC Complete Set One-Piece Pipe
  152. Conversion from RC to CL - 25 sizes
  153. How to hide the OS 91 FS Surpass Muffler ?
  154. Parts for a OS 40 FSR
  155. Is this normal?
  156. factory settings, .18tm
  157. 160 FX EXHAUST HEADER
  158. Max .37SZ-H Ring on a Concept
  159. .61 FSR
  160. OS91SX ACRO ??
  161. 18tm running in question
  162. O.S. 12 TZ
  163. instructions for old OS engines
  164. .12 cv os max and a 10L carb
  165. O.S FS-91
  166. OLD OS 70 SURPASS
  167. o.s. 18 cv
  168. OS FS crankcase breather
  169. OS 48 Rebuild Help
  170. OS FS91SII Bearing change trouble
  171. Pig in a poke??
  172. .61 FSR
  173. 61 FSR Rebuild
  174. O S 46FXi dies on takeoff
  175. Header and pipe set for .18 CV-RX (s) rotary carb
  176. 91FS Exhaust outlet pipe
  177. 46AX DOES NOT SOUND GOOD AFTER 10 FLIGHTS? HELP!
  178. OS-120 proper prop?
  179. os 46 needle setting problem
  180. Urgent- which clutch set for a .18CV-RX ?
  181. Extension part of E-4020
  182. FS 40 Surpass air bleed screw?
  183. OS 61 FS rebuild
  184. FS 61 Cam Bearings
  185. FS 61 Timing
  186. OS 18 CVR pull start problem
  187. I can find this part PA-102 pump system
  188. 1.08 Carb sleeve
  189. easy 1.08 question
  190. .12? carb
  191. os 1.6 fx overheating in giles 202
  192. FS-120Surpass II
  193. Need OS 52 FS manual
  194. 91 surpass no exhaust
  195. How do you break in an os 40 Fx
  196. OS 46 AX is it good or not
  197. OS91fx question
  198. Break-in prop for .91 FX
  199. .30 engine mount
  200. Fuel for a BGX?
  201. 1.08 bearing replacement surgery
  202. 46FX---AX help
  203. 140 RX... what glow plug?
  204. OS 120 Surpass I - Pump leak
  205. FS-70II RPM and exhaust questions.
  206. OS FS70 Ultimate
  207. OS 140 RX pipe tuning procedure
  208. OS 140 RX FI
  209. surpass backfire
  210. OS 120AX????!
  211. OS 61 in P-51 ARF
  212. OS.18cv-rx problem
  213. RUT ROH! .18TM gone??
  214. FS 120 w pump
  215. OS.18cv-rx problem
  216. os fs61
  217. OS 160FX FI
  218. OS 46 AX mid-range
  219. OS 200 4-stroke
  220. 2 questions
  221. 2 stroke piston orientation
  222. OS 160 factory settings
  223. OS .12 TZ 3port with HPI roto start?
  224. OS FS-91, bearing replacement.
  225. Weird OS40 LA Problem
  226. os91fourstroke
  227. OS part # 23882900 help
  228. OS 1.20 Surpass W/pump fuel line hookup?
  229. New OS LA 15??
  230. FS 90 trouble
  231. ball bearing replace on fs91p
  232. OS FS 26C II
  233. OS 160 Low Compression
  234. cam timing on OS-91 FS surpass
  235. 46la needle setting
  236. FT-300 Compression
  237. Os 160 muffler
  238. OS 50 bearing,,,
  239. FS 91 SII Head gasket?
  240. OS 70 Ultimate Regulator Issues
  241. OS 50SX weight?
  242. OS 60 FP Idling Problem
  243. FS 120III w/Pump Flooding
  244. How much blow-by is to much?
  245. 61 FX vs 61 SF
  246. OS FS-70 Ultimate and APC 13x7
  247. FS 120 surpass III w/pump
  248. 3D prop for OS 160 FX
  249. OS 1.60 ABL?
  250. FS-40 Surpass FS-40S