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  1. the 46ax
  2. OS 1.60FX Fuel choices
  3. OS FP/LA interchangability
  4. having problems with OS 91FX
  5. Help for parts for a 90 FSR?
  6. OS 61 SF Burning Plugs
  7. Os 140 rx
  8. OS 140RX
  9. OS 60 FR Muffler??
  10. Bax - Hobby Services inability to repair older OS engines??
  11. OS 160 Cant Get It Rich
  12. OS parts
  13. Parts for discontinued engine
  14. 91FX and a Bisson Pitts Muffler
  15. OS 48FS choke valve interchangability
  16. Hanno Special Header Length
  17. OS Max H
  18. OS 1.60 FX SPINNER ADAPTOR ?????
  19. Is my 46fx liner peeling?
  20. OS-32SX-H question
  21. Hanno Special Plug?
  22. 50 sx-h ring
  23. FX91-What fuel tubing size?
  24. o.s. 50 sx air bubbles
  25. having problems with tuning of O.S .61FX
  26. Setting up an O.S. 160FX
  27. Screw Size 46 LA
  28. i need to know what do i need to turn my os .12 cv into a pull start
  29. 2 questions about my os 40 la
  30. OSMax 12 CZ-Z problem
  31. Temperature of engines?
  32. OS 40Max-H My first engine teardown-help!
  33. OS 46LA...only as powerful as a 40?
  34. OS .46 FX Issue
  35. .91 FSR Parts Sources...
  36. OS 91 FS II pump
  37. OS91 - Dry rear bearing
  38. Problems with MAX 61FX
  39. OS FX .46 Getting Tired?
  40. OS 90FS FOUR STROKE ENGINE IDLE SETTING
  41. Info on FS120S II
  42. parts exchangeability
  43. HELP!! MY OS 50SX ISN'T RUNNING PROPERLY!
  44. Storage of OS 120FS with pump
  45. OS 46 FX Problem
  46. .61SF-P pump nipple broken
  47. OS #743 muffler replacement that fits?
  48. pre detonating OS 1.6
  49. OS 50 w/ 60 Carburetor
  50. OS 61RF-P
  51. OS 40 LA Airbleed setting
  52. OS Rotary engine
  53. O.S. 50 SX air bubbles
  54. os 48 compression loss
  55. OS 120 FS Question
  56. Question about service turn around time
  57. FS 70 Ultimate Availability
  58. OS 91 getting richer on idle
  59. OS 160 Fuel ?
  60. OS LA40 Carb Repair
  61. O.S. .91 FX
  62. OS FS-52 Throbbing
  63. 91 FX idle
  64. OS 70 S II Question
  65. Rusted stuff
  66. os 70 heli engine piston explodes
  67. OS 40 LA Power
  68. OS 91 Surpass question
  69. 52 4/C won't draw fuel
  70. LA 0.40 RPM's running away from me.
  71. OS MAX RZ compression
  72. OLD vs NEW OS 46 FX
  73. OS 140RX Rich in Midrange
  74. OS 1.60 Prop
  75. OS 25 MAX FP
  76. FS-120 (non-surpass) Performance Specifications
  77. FS 48 Surpass
  78. New or Old OS - How do you tell?
  79. ring job
  80. Four stroke mufflers
  81. .46FX to .50SX Upgrade ... help please ...
  82. OS FT-300 FOR MY PITTS SPECIAL
  83. Newly Broken In OS 46 FX
  84. Remote needle valves in os .50 SX and .91 FX
  85. OS 61 FS Muffler?
  86. Can I Make My .61FX a .91?
  87. 40 SR parts
  88. bubbles!! ehhh!
  89. O.S. .61 SX-H Heli Engine- HEIM Mechanics Setup
  90. Tried everything, 46 NV still leaks?
  91. os 46fx..need serious help
  92. OS 40 No compression
  93. OS Max SR-40 Marine - what muffler?
  94. Main bearing broke
  95. Manual for a Max .61 SF?
  96. Tri prop for OS FS70
  97. How to send an item to service
  98. About this Forum
  99. fx 61 loosing power
  100. engine help
  101. OS 91 Surpass-version I
  102. O.S. 25FX and O.S. 25SF
  103. New 91FX muffler missing baffle
  104. OS 91 FX very slow to idle down
  105. os Wankel 1800
  106. OS 91 FX
  107. O.S. 1.08 FSR
  108. I lost a muffler bolt on my 46 fx
  109. Corrosion on piston/cylinder and crank
  110. Port timing 91FX Vs 91SxH
  111. 25 la....
  112. FS-120 surpass fuel setup
  113. 0.s.15 cv-rx refusing to keep running
  114. OS 46 SF
  115. FS-70 header pipe broke on run-in
  116. Pressure Tap OS 91FX
  117. OS60 MAX-H
  118. Bax - OS .10 FSR Con Rod Substitute??
  119. FS90 head stripped
  120. Looking for OS FS-26 Info ...
  121. 46FX - engine rpm up and down at full throttle
  122. Prop Choice
  123. OS 120 w/pump instruction manual needed
  124. OS 120 Surpass I power loss
  125. OS 50 sx Sucking air?
  126. Brass hexagon inlet holder position??
  127. Liner pealing
  128. O.S. 46FX Engine temp
  129. Wankel woes
  130. OS FS-70S head
  131. OS 50 SX making strange noise
  132. 46 LA Prop spun off during break-in run
  133. I'm a newb: OS Max SF 61 With Pump
  134. OS 160FX Bearing Problems?
  135. fx160 needle setting?
  136. OS120 Surpass I Bearings & Gasket Q?
  137. Os .15 Cva
  138. Aeroworks Extra 300L Profile ARF + OS BGX-1 (3500)
  139. Os70 Sz-h Ring
  140. help with surpass 70
  141. oil content and type
  142. Warranty service on OS.91FX, turn around time??
  143. os max 40fp + glow plug
  144. New OS 91 SX acro?
  145. Help with disassemble of OS 120 FS
  146. Position of Fuel Tank
  147. O.S .12 TR(P)-T help.
  148. OS FX 1.60 + Top Flight 18x10
  149. O.S. 32 sx-h gradually lost power
  150. OS 140 RX Bearing
  151. Valve clearence for OS 91 Surpass?
  152. os 300 twin mounting
  153. Surpass 70
  154. Is the Tower plug same as the OS #8???
  155. OS 1.08 low end needle problems
  156. O.S. .46fx
  157. OS .46 fx muffler
  158. 1.60FX Needle Valve replacement
  159. os 61 h wc start off fuel settings
  160. O.S.70B Mixture Control Carb
  161. OS carb # 7DV
  162. OS 46 fx
  163. which muffler?
  164. OS 120 Surpass II head gaskets
  165. 120 Surpass II running lean and needle valve screwed all the way out!?
  166. OS 120 Surpass III optional header
  167. Turnaround time at O.S.
  168. Replacement of my 91FX (Bax)
  169. os 46 fx doesnt turn
  170. 91 Fx
  171. OS 91 MAX Muffler wanted.
  172. the perfect propeller is...
  173. O.S. FS-120S-E Carb leakage
  174. OS FS 91 4 Stroke
  175. 48 surpass compression loss
  176. Ff-240
  177. .21 Rg M
  178. .21 outboard
  179. OS 120 II idle problem
  180. valve adjustment screw
  181. OS screws
  182. 160FX midrange lean condition
  183. OS 91 Fx Quits in mid Range.
  184. Os 160
  185. OS 40 four stroke surpass, idle prob !
  186. os 32 sx
  187. 140Rx & 140EFI Rear Bearings
  188. 40 LA with poor fuel flow (I think)
  189. Torque specs for cyl head screws?
  190. O.S. fuel
  191. advice on Surpass 120 back bearing
  192. O.S. .12 cv-r stalls
  193. OS Max 61FX
  194. 50SX (non-H) on Heli Fuel?
  195. OS .46fx liner peeling?
  196. perry pump on back plate
  197. Os 46sf-p Abc
  198. OS .61 FX missing part?
  199. 46fx breakin
  200. 25LA Problem
  201. OS 50SX Break in ?
  202. 61 FSR carb
  203. starting my o.s..15 cv-x
  204. OS .15 CV probs
  205. OS120III Surpass regulator leaking
  206. In cowl Muffler for 91FX
  207. What prop for OS .46 FX?
  208. Quick question!
  209. OS .40 FP Questions
  210. Response pour over the 46 FX
  211. fx 160
  212. OS FS26S Engine Knocking
  213. OS 40 Surpass C
  214. 91fx mufler
  215. cone baffle ?
  216. We all have some loose screws..
  217. HELP ME! 1.08 FSR Special exhaust?
  218. Antifreez Engine Cleaning Question
  219. o.s. 12 cv-r parts
  220. OS .61FSR ABC Stalling
  221. Unused os max 45fsr-need break-in-is it ABC?
  222. New Os50sx Problem
  223. Os91sx
  224. Getting a used FT-160 Gemini to run
  225. What OS 120 do I have?
  226. Nut for muffler; 40 FSR?
  227. .70 Surpass Timing ?
  228. .61 V parts needed
  229. Manual for OS .61 SF-H
  230. OS 52 Surpass
  231. engine
  232. Fr5-300
  233. Surpass 120 E
  234. OS 61 RFP vs Hanno Special
  235. OS FS-120 Surpass-II with a pump
  236. How to remove and install valve springs from OS FS120SIII with pump?
  237. Need correct part number for thrust washer
  238. A few Questions, and My .46 FX needs rebuilding...
  239. 30% Nitro in OS .32
  240. Couple questions
  241. OS 61 Hanno pump settings?
  242. OS .46Fx damage
  243. 40 & 46 Mounting
  244. OS 50 SX dead sticks
  245. OS FT-120, older model twin...
  246. O.S. .46fx Probs
  247. noisy LA .46
  248. Slimline pitts muffler on 120 III pumped
  249. OS .15 CV-A Slow RPMs???
  250. OS LA 46 not running well