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  1. OS FS-91 Idle settings problem
  2. OS #743 muffler
  3. Need some help Bax!!!
  4. Breaking in a .61 FX
  5. OS 61 RFP ABC
  6. os .26 and .40 4 stroke car engines q's
  7. OS 46 C/L venturi diameter
  8. os fs90 fourstroke
  9. OS 91 FS engine quits
  10. OS 61FX Air Filter?
  11. OS 70 Ultimate
  12. OS BGX
  13. os 1.08 breakin
  14. Needle valve location OS 160
  15. O.S 1.60
  16. 30% CoolPower us in 4-strokes
  17. Electronic copy of instructions for O.S. 60 four-stroke engine
  18. OS FS 120 WITH INCLINED ROCKERS INSTRUCTIONS
  19. OS 32H Question
  20. OS 91 Surpass Exhaust header breaks
  21. Is there a .25 AX on the way?
  22. OS 46FX muffler screw
  23. OS 1.60 bearings
  24. Help, was this my fault or OS's?
  25. Muffler back pressure
  26. propeller for OS 30
  27. 90FS Ring Gap
  28. 15 CVA cover plate
  29. LA65 Header pipe
  30. OS .32 Fabc
  31. 61RF-P ABC prop questions
  32. OS FT 300
  33. Cowled OS 91 FX
  34. Problem with OS 26 FS
  35. FS-91 Surpass II - Black residue on the inside-top of fuel tank after running in
  36. OS 61 MAX SF Pumped
  37. OS 90 needle valve and o ring
  38. tank pressure
  39. fuel?
  40. Rumors of an .18
  41. Varnish or Rust?
  42. 61FX pitts muffler
  43. OS 1.08
  44. vz-rz interchange?
  45. MOVED: Need an O.S. FS61 Marine engine
  46. OS .21VZ-B Premature Wear Problems - Please Advise
  47. OS .60 FP RN
  48. Beginner: Cannot Start O.S. .46 LA
  49. OS300 4stroke twin
  50. O.S. Max FP 40
  51. Proper Break-In for an O.S. 25 fx
  52. Prop for OS 300 4stroke twin
  53. OS 50SHX-H
  54. Installing valves in cylinder head
  55. Rumor on the .46 FX
  56. OS FX 91 problems
  57. Hard to tune
  58. owners and parts manual, o s 61 sf
  59. 91 FX knocking
  60. .91 4-stroke exhaust pipe size
  61. OS FS 48 Surpass
  62. O.S. Carburetor #6B .61 SFN-H
  63. OS 61 FSR Carb question/replacement
  64. Bearings
  65. O.S. 46 FS
  66. OS FS-91 Removing the bearings
  67. Question about the Hanno Specials
  68. OS 120 FS SURPASS W/PUMP PLUMBING?
  69. Replacement Piston Ring
  70. OS 120 FSIII w/pump
  71. OS 300 4 stroke twin
  72. OS 160 FX Crank Case Tap?
  73. 140RX throttle linearity
  74. Great Service
  75. Tuning 120 fs surpass
  76. 3 View Outline ??
  77. Timing on O.S. .91SF Surpass
  78. .15FP CL vs RC question
  79. OS 108, Remote needle?
  80. OS .46 LA
  81. OS 108
  82. the 46ax
  83. OS 1.60FX Fuel choices
  84. OS FP/LA interchangability
  85. having problems with OS 91FX
  86. Help for parts for a 90 FSR?
  87. OS 61 SF Burning Plugs
  88. Os 140 rx
  89. OS 140RX
  90. OS 60 FR Muffler??
  91. Bax - Hobby Services inability to repair older OS engines??
  92. OS 160 Cant Get It Rich
  93. OS parts
  94. Parts for discontinued engine
  95. 91FX and a Bisson Pitts Muffler
  96. OS 48FS choke valve interchangability
  97. Hanno Special Header Length
  98. OS Max H
  99. OS 1.60 FX SPINNER ADAPTOR ?????
  100. Is my 46fx liner peeling?
  101. OS-32SX-H question
  102. Hanno Special Plug?
  103. 50 sx-h ring
  104. FX91-What fuel tubing size?
  105. o.s. 50 sx air bubbles
  106. having problems with tuning of O.S .61FX
  107. Setting up an O.S. 160FX
  108. Screw Size 46 LA
  109. i need to know what do i need to turn my os .12 cv into a pull start
  110. 2 questions about my os 40 la
  111. OSMax 12 CZ-Z problem
  112. Temperature of engines?
  113. OS 40Max-H My first engine teardown-help!
  114. OS 46LA...only as powerful as a 40?
  115. OS .46 FX Issue
  116. .91 FSR Parts Sources...
  117. OS 91 FS II pump
  118. OS91 - Dry rear bearing
  119. Problems with MAX 61FX
  120. OS FX .46 Getting Tired?
  121. OS 90FS FOUR STROKE ENGINE IDLE SETTING
  122. Info on FS120S II
  123. parts exchangeability
  124. HELP!! MY OS 50SX ISN'T RUNNING PROPERLY!
  125. Storage of OS 120FS with pump
  126. OS 46 FX Problem
  127. .61SF-P pump nipple broken
  128. OS #743 muffler replacement that fits?
  129. pre detonating OS 1.6
  130. OS 50 w/ 60 Carburetor
  131. OS 61RF-P
  132. OS 40 LA Airbleed setting
  133. OS Rotary engine
  134. O.S. 50 SX air bubbles
  135. os 48 compression loss
  136. OS 120 FS Question
  137. Question about service turn around time
  138. FS 70 Ultimate Availability
  139. OS 91 getting richer on idle
  140. OS 160 Fuel ?
  141. OS LA40 Carb Repair
  142. O.S. .91 FX
  143. OS FS-52 Throbbing
  144. 91 FX idle
  145. OS 70 S II Question
  146. Rusted stuff
  147. os 70 heli engine piston explodes
  148. OS 40 LA Power
  149. OS 91 Surpass question
  150. 52 4/C won't draw fuel
  151. LA 0.40 RPM's running away from me.
  152. OS MAX RZ compression
  153. OLD vs NEW OS 46 FX
  154. OS 140RX Rich in Midrange
  155. OS 1.60 Prop
  156. OS 25 MAX FP
  157. FS-120 (non-surpass) Performance Specifications
  158. FS 48 Surpass
  159. New or Old OS - How do you tell?
  160. ring job
  161. Four stroke mufflers
  162. .46FX to .50SX Upgrade ... help please ...
  163. OS FT-300 FOR MY PITTS SPECIAL
  164. Newly Broken In OS 46 FX
  165. Remote needle valves in os .50 SX and .91 FX
  166. OS 61 FS Muffler?
  167. Can I Make My .61FX a .91?
  168. 40 SR parts
  169. bubbles!! ehhh!
  170. O.S. .61 SX-H Heli Engine- HEIM Mechanics Setup
  171. Tried everything, 46 NV still leaks?
  172. os 46fx..need serious help
  173. OS 40 No compression
  174. OS Max SR-40 Marine - what muffler?
  175. Main bearing broke
  176. Manual for a Max .61 SF?
  177. Tri prop for OS FS70
  178. How to send an item to service
  179. About this Forum
  180. fx 61 loosing power
  181. engine help
  182. OS 91 Surpass-version I
  183. O.S. 25FX and O.S. 25SF
  184. New 91FX muffler missing baffle
  185. OS 91 FX very slow to idle down
  186. os Wankel 1800
  187. OS 91 FX
  188. O.S. 1.08 FSR
  189. I lost a muffler bolt on my 46 fx
  190. Corrosion on piston/cylinder and crank
  191. Port timing 91FX Vs 91SxH
  192. 25 la....
  193. FS-120 surpass fuel setup
  194. 0.s.15 cv-rx refusing to keep running
  195. OS 46 SF
  196. FS-70 header pipe broke on run-in
  197. Pressure Tap OS 91FX
  198. OS60 MAX-H
  199. Bax - OS .10 FSR Con Rod Substitute??
  200. FS90 head stripped
  201. Looking for OS FS-26 Info ...
  202. 46FX - engine rpm up and down at full throttle
  203. Prop Choice
  204. OS 120 w/pump instruction manual needed
  205. OS 120 Surpass I power loss
  206. OS 50 sx Sucking air?
  207. Brass hexagon inlet holder position??
  208. Liner pealing
  209. O.S. 46FX Engine temp
  210. Wankel woes
  211. OS FS-70S head
  212. OS 50 SX making strange noise
  213. 46 LA Prop spun off during break-in run
  214. I'm a newb: OS Max SF 61 With Pump
  215. OS 160FX Bearing Problems?
  216. fx160 needle setting?
  217. OS120 Surpass I Bearings & Gasket Q?
  218. Os .15 Cva
  219. Aeroworks Extra 300L Profile ARF + OS BGX-1 (3500)
  220. Os70 Sz-h Ring
  221. help with surpass 70
  222. oil content and type
  223. Warranty service on OS.91FX, turn around time??
  224. os max 40fp + glow plug
  225. New OS 91 SX acro?
  226. Help with disassemble of OS 120 FS
  227. Position of Fuel Tank
  228. O.S .12 TR(P)-T help.
  229. OS FX 1.60 + Top Flight 18x10
  230. O.S. 32 sx-h gradually lost power
  231. OS 140 RX Bearing
  232. Valve clearence for OS 91 Surpass?
  233. os 300 twin mounting
  234. Surpass 70
  235. Is the Tower plug same as the OS #8???
  236. OS 1.08 low end needle problems
  237. O.S. .46fx
  238. OS .46 fx muffler
  239. 1.60FX Needle Valve replacement
  240. os 61 h wc start off fuel settings
  241. O.S.70B Mixture Control Carb
  242. OS carb # 7DV
  243. OS 46 fx
  244. which muffler?
  245. OS 120 Surpass II head gaskets
  246. 120 Surpass II running lean and needle valve screwed all the way out!?
  247. OS 120 Surpass III optional header
  248. Turnaround time at O.S.
  249. Replacement of my 91FX (Bax)
  250. os 46 fx doesnt turn

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