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